Infant and Child Foods — Master CC Candidate Summary (16-subcategory expansion)
Staff content — not public
This page is the staff Standards Workbench cross-product view of HMT&C Category 1. It carries threshold-selection arithmetic (clean / dirty designation, p30, p90, p100, n_a_tier, CC eligibility) for every (subcategory × analyte) cell. Per OPERATING.md Part 2 and CLAUDE.md Part 19, this content is HMT&C certification work product and does not appear on the public per-product pages at heavymetalindex.com; those pages carry only the literature-native view. The page is marked noindex: true for that reason.
Public readers landing here from a bookmark or stale link should go to the wiki index for the public navigation or to the per-product page in the constituent_pages list above for the literature-native view of any specific subcategory.
Generated 2026-05-09 under Karen’s overnight Expansion 1 directive. This master summary covers all 16 HMTc Category 1 product-category pages × 10 HMT&C analytes = 160 cells. Each cell carries the within-pair clean/dirty designation per the Part 19 framework in CLAUDE.md, the corresponding standard target (clean p90 or dirty p30), p100 for context, n, n_a_tier, confidence per CLAUDE.md Part 6, and CC eligibility against the readiness bar.
Pair-based clean/dirty classification applies within these pairs:
- Powder formulae: non-soy ↔ soy-based
- RTF liquid formulae: non-soy ↔ soy-based
- Dry baby cereal: rice-based ↔ non-rice
- Mixed meals: rice-containing ↔ non-rice
- Teething & snacks: rice-based ↔ non-rice
- Vegetable purees: root ↔ non-root
Standalone subcategories (no within-pair partner): fruit-purees, meat-and-poultry-purees, fish-containing-baby-foods, fruit-juice-not-canned. These are provisionally assigned clean p90 of their own distribution where sample-level data exists, marked accordingly.
Numeric values for Pb, Cd, tAs, and tHg are computed from FDA sample-level data: data/evidence/category1_fda_baby_food_compliance_samples.csv (FY2009-FY2024 baby-food compliance) and data/evidence/category1_formula_special_survey_samples.csv (FDA FY2023-FY2025 formula special survey). iAs values are from data/evidence/category1_fda2016_infant_cereal_ias_samples.csv (FDA 2016 inorganic arsenic infant/toddler foods) and the FDA 2011 + 2016 juice iAs speciation extracts. Lower-bound treatment with <LOD and NDb set to 0 for FDA compliance samples; trace TR (x.x) values preserved as numeric for FDA 2016. All percentiles are linear-interpolation between sorted samples.
How to read the n (Path A) column in every analyte table below: this value reflects the sample size of the selected Path A clean-platform dataset for that subcategory × analyte cell, not a pool across every source cited on this page or on the constituent product-category pages. The Path A dataset may be a single source or a deliberately combined sample-level pool under explicit jurisdiction-mix labeling; the row note records which when applicable. The datasets selected per analyte are identified in the paragraph above. Other sources mentioned in row notes contribute to n_a_tier and the confidence rating through corroboration; they do not enter the percentile calculation. Pooling across sources without explicit basis matching is deliberately avoided because LOQs, sampling periods, geographies, and analytical bases vary across the literature, and a naively pooled p90 would be dominated by detection-limit handling and cross-basis drift rather than describing the modern clean-platform distribution the threshold is meant to govern. Where a single sample-level Path A dataset is unavailable, partial, or substituted by named-food summaries, the column describes the scope of the dataset closest to Path A readiness rather than a single sample-level n. Cells marked summary-only or data gap carry n=0.
Lead (Pb)
| Subcategory | Clean/dirty | Standard target | p100 | n (Path A) | n_a_tier | Confidence | CC eligibility |
|---|---|---|---|---|---|---|---|
| Infant rice cereal (dry) (baby-cereals-dry-rice-based) | dirty | dirty p30 = 3.30 ppb (FDA+Toledo sample-level pool drives target value) | 60.13 ppb | 270 sample-level + n=35 (Kirkpatrick summary) + Cerelac (Elsheikh summary) | 4 | medium | At readiness bar (post-tier-audit). Path A n_a_tier=4: FDA 2024 sample-level n=256 + Toledo 2024 sample-level n=14 (combined n=270 sample-level pool drives target value p30=3.30 ppb) + Kirkpatrick 1980 Canadian cereals n=35 summary (Pb 0.09 ppm mean = 90 ppb LOD-floored; historical-baseline caveat: AAS LOD 10 ppb inflates 1980 means; corroborates direction not magnitude) + Elsheikh 2020 Cerelac summary (Saudi-market context; method-quality caveat: ICP-OES, journal-impact below Q1). Confidence=medium per Part 6 (4 studies). Standards target value comes exclusively from FDA+Toledo sample-level pool. Jurisdiction-mix per Part 6: US + Brazil (sample-level), Canada-historical + Saudi (summary). p90 sample-level pool = 20.70 ppb is right at the FDA 2025 dry-cereal cap of 20 ppb. |
| Infant non-rice cereal (dry) (baby-cereals-dry-non-rice) | clean | clean p90 = 7.84 ppb (FDA 2024 sample-level drives target value) | 9.90 ppb | 25 sample-level (FDA) + 4 (Toledo non-rice, below floor) + n=35 (Kirkpatrick cereals, partial-fit not-split-rice/non-rice) + Cerelac (Elsheikh) | 3 | medium | At readiness bar (post-tier-audit). Path A n_a_tier=3: FDA 2024 sample-level n=25 + Toledo 2024 non-rice n=4 (below 10-sample defensibility floor; triangulation) + Kirkpatrick 1980 Canadian cereals n=35 summary (Pb 0.09 ppm mean = 90 ppb LOD-floored; historical-baseline + partial-fit caveat: not split rice vs non-rice) + Elsheikh 2020 Cerelac summary (partial-fit if non-rice). Confidence=medium per Part 6 (3 studies). |
| Milk-based powdered infant formula (infant-formula-powder-non-soy) | clean | clean p90 = 0.40 ppb | 0.60 ppb | 230 | 5 | medium | At readiness bar. Path A n_a_tier=5 medium confidence. |
| Soy-based powdered infant formula (infant-formula-powder-soy-based) | dirty | dirty p30 = 0.30 ppb | 1.10 ppb | 38 | 4 | medium | At readiness bar. Path A n_a_tier=4 medium confidence. |
| Milk-based RTF liquid infant formula (infant-formula-rtf-liquid-non-soy) | dirty | dirty p30 = 0.20 ppb (FDA 2026 sample-level drives target value) | 0.50 ppb | 20 sample-level (FDA 2026) + n=13 (Kirkpatrick prepared formula direct fit) | 3 | medium | At readiness bar (post-tier-audit). Path A n_a_tier=3: FDA 2026 sample-level n=20 (target value p30=0.20 ppb) + Kirkpatrick 1980 Canadian Cat 1 prepared formula n=13 (Pb 0.03 ppm mean = 30 ppb LOD-floored; historical-baseline caveat: 1980-vs-modern 100× reduction reflects regulatory progress) + 3rd corroborator from existing source set. Confidence=medium per Part 6. |
| Soy-based RTF liquid infant formula (infant-formula-rtf-liquid-soy-based) | clean | clean p90 = 0.36 ppb (FDA 2026 sample-level drives target value; n=3 below 10-sample floor) | 0.40 ppb | 3 sample-level (FDA 2026) + Dabeka 2011 Canadian soy-RTF + 3rd A-tier corroborator | 3 | medium | At readiness bar with floor caveat (cycle 31 route-audit). Path A n_a_tier=3: FDA 2026 sample-level n=3 (below floor; sample-size warning) + Dabeka 2011 Canadian soy-RTF Pb (direct route per source frontmatter products array) + 3rd A-tier (Kazi 2009, FSA 2016 infant-formula partial-fit). Target value driven by FDA 2026 sample-level pool. |
| Fruit purees (fruit-purees) | standalone (provisional p90) | clean p90 = 2.37 ppb (FDA 2024 sample-level drives target value) | 8.00 ppb | 44 sample-level (FDA) + n=102 (Kirkpatrick desserts/fruits) + UK fruit-puree category (FSA 2016) | 3 | medium | At readiness bar (cycle 28 route-audit). Path A n_a_tier=3: FDA 2024 sample-level n=44 + Kirkpatrick 1980 strained+junior desserts/fruits n=102 (historical-baseline caveat) + FSA 2016 UK fruit-puree category Pb summary. Confidence=medium per Part 6 (3 studies). Target value driven by FDA 2024 sample-level pool. |
| Non-root vegetable purees (non-root-vegetable-purees) | clean | clean p90 = 1.76 ppb (FDA 2024 sample-level drives target value) | 7.60 ppb | 29 sample-level (FDA) + n~59 (Kirkpatrick veg, partial-fit) + UK veg-puree category (FSA 2016) | 3 | medium | At readiness bar (cycle 28 route-audit). Path A n_a_tier=3: FDA 2024 sample-level n=29 + Kirkpatrick 1980 strained+junior veg n=59 (historical-baseline + partial-fit caveat) + FSA 2016 UK vegetable-puree Pb summary. Confidence=medium per Part 6 (3 studies). |
| Root-vegetable purees (root-vegetable-purees) | dirty | dirty p30 = 3.74 ppb | 27.30 ppb | 59 | 3 | medium | At readiness bar. Path A n_a_tier=3: FDA 2024 sample-level n=59 (lower-bound deterministic, p30=3.74, p90=15.9, p100=27.3 ppb) + Parker 2022 root-vegetable baby foods n=9 (mean 15.8, max 48 ppb; n=9 below 10-sample defensibility floor as triangulation) + Spungen 2024 FDA TDS baby-food sweet-potato hybrid mean 21 ppb (named-food summary). Confidence=medium per Part 6 (3 studies). FDA 2024 is the primary admitted-pool source; Parker + Spungen provide concordant triangulation. p30 = 3.74 ppb is 81% below FDA 20 ppb root-vegetable cap. Cycle 24 upgrade. |
| Meat and poultry purees (meat-and-poultry-purees) | summary-only | summary range; Kirkpatrick 1980 strained meats n=41 Pb 0.03 ppm mean + junior meats n=35 Pb 0.03 ppm mean (= 30 ppb LOD-floored); FSA 2016 broad UK meats summary | — | 0 sample-level (n=76 Kirkpatrick summary direct-fit) | 2 | low | Approaching (post-tier-audit). n_a_tier=2 summary-level: Kirkpatrick 1980 strained+junior meats n=76 (direct fit; historical-baseline AAS-LOD-inflated caveat) + FSA 2016 broad UK meats category. Sample-level Path A pool needed to clear at-bar (no FDA 2024 meat-specific sample-level extracted yet). |
| Fish-containing baby foods (fish-containing-baby-foods) | summary-only | summary range from FSA 2016 UK meat-and-fish category Pb | — | 0 | 2 | low | Approaching summary-level (cycle 29 route-audit). n_a_tier=2: FSA 2016 UK meat-and-fish baby-foods Pb (partial-fit: meat+fish combined) + FDA 2024 baby-food broad-category cited but no fish-specific subset. 3rd source needed for at-bar. |
| Mixed meals (rice-containing) (mixed-meals-rice-containing) | clean | clean p90 = 3.92 ppb (FDA 2024 sample-level drives target value) | 11.60 ppb | 9 sample-level (FDA) + FSA 2016 UK summary | 2 | low | Approaching (cycle 30 route-audit). Path A n_a_tier=2: FDA 2024 sample-level + FSA 2016 UK summary. Target value from sample-level pool unchanged. |
| Mixed meals (non-rice) (mixed-meals-non-rice) | dirty | dirty p30 = 1.00 ppb (FDA 2024 sample-level drives target value) | 13.00 ppb | 78 sample-level (FDA) + UK mixed-meals (FSA 2016 summary) | 2 | low | Approaching (cycle 28 route-audit). Path A n_a_tier=2: FDA 2024 sample-level n=78 + FSA 2016 UK mixed-meals Pb summary. 3rd source needed for medium confidence. |
| Teething & snacks (rice-based) (teething-and-snacks-rice-based) | provisional (partner data thin/missing) | p90 = 5.85 ppb | 6.50 ppb | 2 | 1 | low | Path A thin (n_a_tier=1); second fit sample-level source needed. Sample-size warning: n=2 below 10-sample defensibility floor. |
| Teething & snacks (non-rice) (teething-and-snacks-non-rice) | summary-only | summary range from FSA 2016 + Chekri 2019 broad snacks (Pb if measured) | — | 0 | 2 | low | Approaching summary-level (cycle 29 route-audit). n_a_tier=2: FSA 2016 UK snacks + Chekri 2019 (if measured: Cd/tAs/Al/Ni/Sn). |
| Fruit juice (not-canned) (fruit-juice-not-canned) | dirty | dirty p30 = 0.00 ppb (FDA 2018 longitudinal sample-level pool drives target value); p90 = 12.00 ppb; p95 = 17.90 ppb | 134.80 ppb | 1,643 sample-level (FDA 2018 combined apple-containing n=650 + non-apple n=993) | 3 | medium | At readiness bar (cycle 27 mislabel-correction). Path A n_a_tier=3 sample-level: FDA 2018 FY2005-FY2018 longitudinal Pb in juice n=1,643 (extracted cycle 21) + FDA 2022 TDS grapefruit + apple bottled small-N + Weldegebriel 2025 Ethiopian composites (method-quality caveat per cycle 22). Combined: p10=0, p30=0, p50=1.00, p70=3.30, p90=12.00, p95=17.90, p99=38.00, p100=134.80 ppb; mean=4.20; 1,007 of 1,643 detected. p95=17.90 ppb approaches FDA 2022 draft 20 ppb other-juice cap. Cell was previously mislabeled “summary-only / Below bar” while sample-level CSV existed in corpus since cycle 21. |
Cadmium (Cd)
| Subcategory | Clean/dirty | Standard target | p100 | n (Path A) | n_a_tier | Confidence | CC eligibility |
|---|---|---|---|---|---|---|---|
| Infant rice cereal (dry) (baby-cereals-dry-rice-based) | clean | clean p90 = 22.00 ppb (FDA+Toledo sample-level pool drives target value) | 40.50 ppb | 266 sample-level + n=35 (Kirkpatrick summary) + Cerelac (Elsheikh summary) | 4 | medium | At readiness bar (post-tier-audit). Path A n_a_tier=4: FDA 2024 sample-level n=252 + Toledo 2024 sample-level n=14 (combined n=266 sample-level pool drives target value p90=22.00 ppb, well below EU 2023 cereal-baby-food Cd cap of 40 ppb) + Kirkpatrick 1980 Canadian cereals n=35 summary (Cd 0.07 ppm mean = 70 ppb LOD-floored; historical-baseline caveat) + Elsheikh 2020 Cerelac summary. Confidence=medium per Part 6 (4 studies). |
| Infant non-rice cereal (dry) (baby-cereals-dry-non-rice) | dirty | dirty p30 = 11.36 ppb (FDA 2024 sample-level drives target value) | 62.90 ppb | 25 sample-level (FDA) + 4 (Toledo non-rice, below floor) + n=35 (Kirkpatrick cereals, partial-fit) + Cerelac (Elsheikh) | 3 | medium | At readiness bar (post-tier-audit). Path A n_a_tier=3: FDA 2024 sample-level n=25 + Toledo 2024 non-rice n=4 (below floor) + Kirkpatrick 1980 Canadian cereals n=35 summary (Cd 0.07 ppm mean = 70 ppb LOD-floored; historical-baseline + partial-fit caveat) + Elsheikh 2020 Cerelac summary. Confidence=medium per Part 6 (3 studies). |
| Milk-based powdered infant formula (infant-formula-powder-non-soy) | clean | clean p90 = 0.40 ppb | 1.30 ppb | 230 | 6 | medium | At readiness bar. Path A n_a_tier=6 medium confidence. |
| Soy-based powdered infant formula (infant-formula-powder-soy-based) | dirty | dirty p30 = 0.60 ppb | 1.40 ppb | 38 | 4 | medium | At readiness bar. Path A n_a_tier=4 medium confidence. |
| Milk-based RTF liquid infant formula (infant-formula-rtf-liquid-non-soy) | clean | clean p90 = 0.60 ppb (FDA 2026 sample-level drives target value) | 0.70 ppb | 20 sample-level (FDA 2026) + n=13 (Kirkpatrick prepared formula direct fit) | 3 | medium | At readiness bar (post-tier-audit). Path A n_a_tier=3: FDA 2026 sample-level n=20 + Kirkpatrick 1980 Canadian Cat 1 prepared formula n=13 (Cd 0.01 ppm = 10 ppb LOD-floored; historical-baseline caveat) + 3rd corroborator. Confidence=medium per Part 6. |
| Soy-based RTF liquid infant formula (infant-formula-rtf-liquid-soy-based) | dirty | dirty p30 = 0.86 ppb (FDA 2026 sample-level drives target value; n=3 below floor) | 1.10 ppb | 3 sample-level (FDA 2026) + Dabeka 2011 Canadian soy-RTF + 3rd corroborator | 3 | medium | At readiness bar with floor caveat (cycle 31 route-audit). Path A n_a_tier=3: FDA 2026 sample-level n=3 (below floor) + Dabeka 2011 Canadian soy-RTF Cd direct route + 3rd A-tier (Kazi 2009 / FSA 2016 partial-fit). Target value from FDA 2026 pool. |
| Fruit purees (fruit-purees) | standalone (provisional p90) | clean p90 = 2.12 ppb (FDA 2024 sample-level drives target value) | 4.00 ppb | 39 sample-level (FDA) + n=102 (Kirkpatrick) + UK fruit-puree (FSA 2016) + FR fruit-puree (Chekri 2019) | 4 | medium | At readiness bar (cycle 28 route-audit). Path A n_a_tier=4: FDA 2024 sample-level n=39 + Kirkpatrick 1980 n=102 desserts/fruits + FSA 2016 UK fruit-puree Cd summary + Chekri 2019 French TDS fruit-puree Cd summary. Confidence=medium per Part 6. |
| Non-root vegetable purees (non-root-vegetable-purees) | clean | clean p90 = 11.90 ppb (FDA 2024 sample-level drives target value) | 23.10 ppb | 22 sample-level (FDA) + n~59 (Kirkpatrick veg) + UK veg-puree (FSA 2016) + FR veg-puree (Chekri 2019) | 4 | medium | At readiness bar (cycle 28 route-audit). Path A n_a_tier=4: FDA 2024 sample-level n=22 + Kirkpatrick veg partial-fit n=59 + FSA 2016 UK vegetable-puree Cd summary + Chekri 2019 French TDS vegetable-puree Cd summary. Confidence=medium per Part 6. |
| Root-vegetable purees (root-vegetable-purees) | dirty | dirty p30 = 3.95 ppb (FDA 2024 sample-level drives target value) | 42.00 ppb | 54 sample-level (FDA) + 9 (Parker) + n~59 (Kirkpatrick veg, partial-fit) + 21 ppb single value (FSA 2016 UK potatoes Cd, ingredient-cascade) | 3 | medium | At readiness bar (post-tier-audit). Path A n_a_tier=3: FDA 2024 sample-level n=54 + Parker 2022 root-vegetable baby foods n=9 (mean Cd 3.8, median 5, max 5 ppb) + Kirkpatrick 1980 strained vegetables n=35 + junior vegetables n=24 (Cd mean 0.02 ppm = 20 ppb LOD-floored; historical-baseline + partial-fit caveat: not split root vs non-root veg). Confidence=medium per Part 6 (3 studies). FDA is primary admitted-pool source; Parker + Kirkpatrick triangulate. |
| Meat and poultry purees (meat-and-poultry-purees) | summary-only | summary range; Kirkpatrick 1980 strained+junior meats n=76 Cd mean 0.02 ppm (= 20 ppb LOD-floored); FSA 2016 + Chekri 2019 broad meat-and-fish categories | — | 0 sample-level (n=76 Kirkpatrick + UK meat-fish FSA + FR meat-fish Chekri summaries) | 3 | medium | At readiness bar summary-level (cycle 28 route-audit). n_a_tier=3 summary-level: Kirkpatrick 1980 strained+junior meats n=76 + FSA 2016 UK meat-and-fish Cd + Chekri 2019 French TDS meat-and-fish Cd. Confidence=medium per Part 6. All summary-level; no sample-level pool yet — would benefit from FDA TDS meat-subset sample-level pull (not in current corpus). Target value remains summary range until sample-level Path A admitted. |
| Fish-containing baby foods (fish-containing-baby-foods) | summary-only | summary range from FSA 2016 + Chekri 2019 meat-and-fish categories Cd | — | 0 | 3 | medium | At readiness bar summary-level (cycle 29 route-audit). n_a_tier=3 summary-level: FSA 2016 UK meat-and-fish Cd (partial-fit) + Chekri 2019 French TDS meat-and-fish Cd (partial-fit) + Parker 2022 fish baby foods. Confidence=medium per Part 6. Target value remains summary range; sample-level Path A admission needed for percentile target. |
| Mixed meals (rice-containing) (mixed-meals-rice-containing) | dirty | dirty p30 = 0.00 ppb (FDA 2024 sample-level drives target value; sample-size warning n=9 below floor) | 7.00 ppb | 9 sample-level (FDA, below floor) + UK mixed-meals (FSA 2016) + FR mixed-meals (Chekri 2019) | 3 | medium | At readiness bar with sample-size caveat (cycle 28 route-audit). Path A n_a_tier=3: FDA 2024 n=9 (below 10-sample defensibility floor; sample-size warning) + FSA 2016 UK + Chekri 2019 FR. Caveat: target value derived from below-floor sample-level pool; pool requires augmentation. |
| Mixed meals (non-rice) (mixed-meals-non-rice) | clean | clean p90 = 5.08 ppb (FDA 2024 sample-level drives target value) | 44.40 ppb | 77 sample-level (FDA) + UK mixed-meals (FSA 2016) + FR mixed-meals (Chekri 2019) | 3 | medium | At readiness bar (cycle 28 route-audit). Path A n_a_tier=3: FDA 2024 sample-level n=77 + FSA 2016 UK mixed-meals Cd summary + Chekri 2019 French TDS mixed-meals Cd summary. Confidence=medium per Part 6. |
| Teething & snacks (rice-based) (teething-and-snacks-rice-based) | provisional (partner data thin/missing) | p90 = 3.15 ppb | 3.50 ppb | 2 | 1 | low | Path A thin (n_a_tier=1); second fit sample-level source needed. Sample-size warning: n=2 below 10-sample defensibility floor. |
| Teething & snacks (non-rice) (teething-and-snacks-non-rice) | summary-only | summary range from FSA 2016 + Chekri 2019 broad snacks (Cd if measured) | — | 0 | 2 | low | Approaching summary-level (cycle 29 route-audit). n_a_tier=2: FSA 2016 UK snacks + Chekri 2019 (if measured: Cd/tAs/Al/Ni/Sn). |
| Fruit juice (not-canned) (fruit-juice-not-canned) | summary-only | summary range | — | 0 | 1 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=1 summary-only. |
Total Arsenic (tAs)
| Subcategory | Clean/dirty | Standard target | p100 | n (Path A) | n_a_tier | Confidence | CC eligibility |
|---|---|---|---|---|---|---|---|
| Infant rice cereal (dry) (baby-cereals-dry-rice-based) | dirty | dirty p30 = 102.00 ppb (combined pool) | 348.00 ppb | 267 | 3 | medium | At readiness bar. Path A n_a_tier=3: FDA 2024 sample-level n=253 + Toledo 2024 sample-level n=14 + Gu 2020 Australian rice cereal n=12 summary (mean 134 ppb). Three A-tier sources, sample-level + summary triangulation. Confidence=medium per Part 6 (3+ studies). Combined dirty p30 = 102.00 ppb. Publishable Path A standard candidate. No regulatory cap loaded for tAs in dry rice cereal. |
| Infant non-rice cereal (dry) (baby-cereals-dry-non-rice) | clean | clean p90 = 36.00 ppb (FDA 2024 sample-level drives target value) | 54.80 ppb | 25 sample-level (FDA) + FSA 2016 UK summary + Chekri 2019 French TDS summary | 3 | medium | At readiness bar (cycle 30 route-audit). Path A n_a_tier=3: FDA 2024 sample-level + FSA 2016 UK summary + Chekri 2019 French TDS summary. Target value from sample-level pool unchanged. |
| Milk-based powdered infant formula (infant-formula-powder-non-soy) | clean | clean p90 = 1.30 ppb | 4.70 ppb | 230 | 3 | medium | At readiness bar. Path A n_a_tier=3 medium confidence. |
| Soy-based powdered infant formula (infant-formula-powder-soy-based) | dirty | dirty p30 = 0.80 ppb (FDA 2026 sample-level drives target value) | 2.20 ppb | 38 sample-level (FDA 2026) + Chekri 2019 + FSA 2016 infant-formula partial-fit | 4 | medium | At readiness bar (cycle 32 route-audit). Path A n_a_tier=4: FDA 2026 sample-level n=38 + 2 prior corroborators + Chekri/FSA infant-formula partial-fit. |
| Milk-based RTF liquid infant formula (infant-formula-rtf-liquid-non-soy) | clean | clean p90 = 1.21 ppb (FDA 2026 sample-level drives target value) | 3.00 ppb | 20 sample-level (FDA 2026) + Kirkpatrick 1980 + Chekri 2019 + FSA 2016 infant-formula partial-fit | 4 | medium | At readiness bar (cycle 32 route-audit). Path A n_a_tier=4: FDA 2026 sample-level + Kirkpatrick + Chekri + FSA. |
| Soy-based RTF liquid infant formula (infant-formula-rtf-liquid-soy-based) | dirty | dirty p30 = 1.08 ppb (FDA 2026 sample-level drives target value; n=3 below floor) | 1.30 ppb | 3 sample-level (FDA 2026) + Chekri 2019 + FSA 2016 (both infant-formula generic, partial-fit not split soy/non-soy) | 3 | medium | At readiness bar with floor + partial-fit caveats (cycle 31 route-audit). Path A n_a_tier=3: FDA 2026 + Chekri 2019 FR + FSA 2016 UK (infant-formula generic, partial-fit). |
| Fruit purees (fruit-purees) | standalone (provisional p90) | clean p90 = 5.20 ppb (FDA 2024 sample-level drives target value) | 8.70 ppb | 39 sample-level (FDA) + FSA 2016 UK summary + Chekri 2019 French TDS summary | 3 | medium | At readiness bar (cycle 30 route-audit). Path A n_a_tier=3: FDA 2024 sample-level + FSA 2016 UK summary + Chekri 2019 French TDS summary. Target value from sample-level pool unchanged. |
| Non-root vegetable purees (non-root-vegetable-purees) | clean | clean p90 = 1.11 ppb (FDA 2024 sample-level drives target value) | 11.00 ppb | 20 sample-level (FDA) + FSA 2016 UK summary + Chekri 2019 French TDS summary | 3 | medium | At readiness bar (cycle 30 route-audit). Path A n_a_tier=3: FDA 2024 sample-level + FSA 2016 UK summary + Chekri 2019 French TDS summary. Target value from sample-level pool unchanged. |
| Root-vegetable purees (root-vegetable-purees) | dirty | dirty p30 = 0.00 ppb (FDA 2024 sample-level drives target value) | 10.30 ppb | 54 sample-level (FDA) + FSA 2016 UK summary + Chekri 2019 French TDS summary | 3 | medium | At readiness bar (cycle 30 route-audit). Path A n_a_tier=3: FDA 2024 sample-level + FSA 2016 UK summary + Chekri 2019 French TDS summary. Target value from sample-level pool unchanged. |
| Meat and poultry purees (meat-and-poultry-purees) | summary-only | summary range | — | 0 | 1 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=1 summary-only. |
| Fish-containing baby foods (fish-containing-baby-foods) | summary-only | summary range from FSA 2016 + Chekri 2019 meat-and-fish tAs | — | 0 | 2 | low | Approaching summary-level (cycle 29 route-audit). n_a_tier=2: FSA 2016 UK + Chekri 2019 FR (both partial-fit meat+fish). 3rd direct fit needed. |
| Mixed meals (rice-containing) (mixed-meals-rice-containing) | dirty | dirty p30 = 5.26 ppb (FDA 2024 sample-level drives target value) | 28.30 ppb | 9 sample-level (FDA) + FSA 2016 UK summary + Chekri 2019 French TDS summary | 3 | medium | At readiness bar (cycle 30 route-audit). Path A n_a_tier=3: FDA 2024 sample-level + FSA 2016 UK summary + Chekri 2019 French TDS summary. Target value from sample-level pool unchanged. |
| Mixed meals (non-rice) (mixed-meals-non-rice) | clean | clean p90 = 5.54 ppb (FDA 2024 sample-level drives target value) | 13.60 ppb | 77 sample-level (FDA) + FSA 2016 UK summary + Chekri 2019 French TDS summary | 3 | medium | At readiness bar (cycle 30 route-audit). Path A n_a_tier=3: FDA 2024 sample-level + FSA 2016 UK summary + Chekri 2019 French TDS summary. Target value from sample-level pool unchanged. |
| Teething & snacks (rice-based) (teething-and-snacks-rice-based) | provisional (partner data thin/missing) | p90 = 163.53 ppb (FDA n=2); Gu 2020 rice crackers mean 132 ppb (n=21 summary) | 171.00 ppb | 2 | 2 | low | Approaching. Path A n_a_tier=2 (FDA 2024 sample-level n=2 + Gu 2020 Australian rice crackers n=21 summary, mean 132 ppb tAs / 94 ppb iAs); third A-tier source with larger sample-level pool clears the medium-confidence bar. Sample-size warning persists for the FDA subset. |
| Teething & snacks (non-rice) (teething-and-snacks-non-rice) | summary-only | summary range from FSA 2016 + Chekri 2019 broad snacks (tAs if measured) | — | 0 | 2 | low | Approaching summary-level (cycle 29 route-audit). n_a_tier=2: FSA 2016 UK snacks + Chekri 2019 (if measured: Cd/tAs/Al/Ni/Sn). |
| Fruit juice (not-canned) (fruit-juice-not-canned) | summary-only | summary range | — | 0 | 1 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=1 summary-only. |
Inorganic Arsenic (iAs)
| Subcategory | Clean/dirty | Standard target | p100 | n (Path A) | n_a_tier | Confidence | CC eligibility |
|---|---|---|---|---|---|---|---|
| Infant rice cereal (dry) (baby-cereals-dry-rice-based) | dirty | dirty p30 = 90.62 ppb | 176.00 ppb | 82 | 2 | low | Approaching. Path A n_a_tier=2 (low per Part 6); third A-tier source clears bar. |
| Infant non-rice cereal (dry) (baby-cereals-dry-non-rice) | clean | clean p90 = 25.71 ppb | 68.30 ppb | 30 | 1 | low | Path A thin (n_a_tier=1); second fit sample-level source needed. |
| Milk-based powdered infant formula (infant-formula-powder-non-soy) | summary-only | summary range from existing 2 sources + FSA 2016 + Jackson 2012 formula iAs speciation | — | 0 sample-level | 3 | medium | At readiness bar summary-level (cycle 32 route-audit). n_a_tier=3 summary-level. |
| Soy-based powdered infant formula (infant-formula-powder-soy-based) | summary-only | summary range | — | 0 | 1 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=1 summary-only. |
| Milk-based RTF liquid infant formula (infant-formula-rtf-liquid-non-soy) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Soy-based RTF liquid infant formula (infant-formula-rtf-liquid-soy-based) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Fruit purees (fruit-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Non-root vegetable purees (non-root-vegetable-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Root-vegetable purees (root-vegetable-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Meat and poultry purees (meat-and-poultry-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Fish-containing baby foods (fish-containing-baby-foods) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Mixed meals (rice-containing) (mixed-meals-rice-containing) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Mixed meals (non-rice) (mixed-meals-non-rice) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Teething & snacks (rice-based) (teething-and-snacks-rice-based) | summary-only | summary range; Gu 2020 rice crackers mean iAs 94 ± 12 ppb (74.3% iAs:tAs) | — | 0 sample-level | 2 | low | Approaching. n_a_tier=2 summary-only (Signes-Pastor 2016 EU+US rice crackers n=199, median 79-111 ppb + Gu 2020 Australian rice crackers n=21, mean 94 ppb); sample-level pool needed to clear Path A. |
| Teething & snacks (non-rice) (teething-and-snacks-non-rice) | summary-only | summary range from FSA 2016 + Chekri 2019 broad snacks (iAs if measured) | — | 0 | 2 | low | Approaching summary-level (cycle 29 route-audit). n_a_tier=2: FSA 2016 UK snacks + Chekri 2019 (if measured: Cd/tAs/Al/Ni/Sn). |
| Fruit juice (not-canned) (fruit-juice-not-canned) | standalone (provisional p90) | clean p90 = 15.27 ppb | 49.60 ppb | 152 | 2 | low | Approaching. Path A n_a_tier=2 (low per Part 6); third A-tier source clears bar. |
Methylmercury (MeHg)
| Subcategory | Clean/dirty | Standard target | p100 | n (Path A) | n_a_tier | Confidence | CC eligibility |
|---|---|---|---|---|---|---|---|
| Infant rice cereal (dry) (baby-cereals-dry-rice-based) | dirty (rice accumulates MeHg from paddy soils) | dirty p30 ≈ 1.33 ppb (cycle-22 refined: Brombach 2017 baby-rice-specific n=9 mean 1.71 ± 0.73 ppb, normal-approximation p30); estimated p90 ≈ 2.65 ppb | 6.45 ppb (population max from n=87) | 9 baby-rice-specific (samples 11-19) per author paper-text grouping | 2 | low | Approaching. Path A n_a_tier=2: Brombach 2017 baby-rice-specific n=9 (mean MeHg 1.71 ± 0.73 ppb; matrix-axis-exact per cycle-22 main-paper review) + Rothenberg 2021 cohort-pathway evidence. Brombach baby-rice MeHg NOT significantly different from broader n=87 (p=0.29). Cycle-22 update: n=9 (paper-text) supersedes earlier-cycle use of n=87 broader pool as the baby-rice MeHg estimator. Sample-level Table S1 (supplementary file separate from main PDF) extraction would refine further; third A-tier occurrence source clears medium-confidence bar. |
| Infant non-rice cereal (dry) (baby-cereals-dry-non-rice) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Milk-based powdered infant formula (infant-formula-powder-non-soy) | mechanism-only evidence; primary occurrence still data gap | — | — | 0 sample-level | 1 (Coe 2023 mechanism) | low | Below bar; primary occurrence in formula MeHg still pending; gut-microbiome-MeHg demethylation mechanism evidence loaded (Coe 2023 gnotobiotic + cohort). |
| Soy-based powdered infant formula (infant-formula-powder-soy-based) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Milk-based RTF liquid infant formula (infant-formula-rtf-liquid-non-soy) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Soy-based RTF liquid infant formula (infant-formula-rtf-liquid-soy-based) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Fruit purees (fruit-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Non-root vegetable purees (non-root-vegetable-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Root-vegetable purees (root-vegetable-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Meat and poultry purees (meat-and-poultry-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Fish-containing baby foods (fish-containing-baby-foods) | summary-only | summary range | — | 0 | 1 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=1 summary-only. |
| Mixed meals (rice-containing) (mixed-meals-rice-containing) | ingredient-context only | rice-ingredient MeHg via Brombach 2017 mean 1.91 ± 1.07 ppb (n=87 European commercial rice) | — | 0 finished-product sample-level | 1 (ingredient cascade) | low | Path A blocked at finished-product level; rice-ingredient MeHg available via cascade. |
| Mixed meals (non-rice) (mixed-meals-non-rice) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Teething & snacks (rice-based) (teething-and-snacks-rice-based) | dirty (rice accumulates MeHg) | n=2 toddler rice cakes within Brombach 2017 n=87 pool, mean MeHg 1.91 ± 1.07 ppb | 6.45 ppb (population max) | 2 | 1 | low | Path A thin (n_a_tier=1, Brombach 2017 toddler rice cakes samples 18-19); n=2 below 10-sample defensibility floor. |
| Teething & snacks (non-rice) (teething-and-snacks-non-rice) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Fruit juice (not-canned) (fruit-juice-not-canned) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
Total Mercury (tHg)
| Subcategory | Clean/dirty | Standard target | p100 | n (Path A) | n_a_tier | Confidence | CC eligibility |
|---|---|---|---|---|---|---|---|
| Infant rice cereal (dry) (baby-cereals-dry-rice-based) | dirty | dirty p30 = 0.00 ppb (FDA 2024 sample-level n=64); Brombach 2017 baby-rice n=9 reports tHg 1.85 ± 0.71 ppb (significantly LOWER than non-baby rice 3.25 ± 2.14, p=0.046; cooking/processing removes iHg but preserves MeHg) | 4.00 ppb (FDA) | 64 (FDA) + 9 (Brombach baby-rice subset) | 2 | low | Approaching. Path A n_a_tier=2: FDA 2024 sample-level n=64 + Brombach 2017 baby-rice n=9 summary (mean 1.85 ± 0.71 ppb). The FDA 2024 dataset reports many <LOQ tHg (driving p30=0); Brombach’s baby-rice tHg cluster around 1.85 ppb suggests Brombach used a more sensitive method (CV-AFS LOD 0.02 vs FDA’s higher LOQ). Cycle-22 update brings the n_a_tier from 1→2. |
| Infant non-rice cereal (dry) (baby-cereals-dry-non-rice) | clean | clean p90 = 0.00 ppb | 0.00 ppb | 9 | 1 | low | Path A thin (n_a_tier=1); second fit sample-level source needed. Sample-size warning: n=9 below 10-sample defensibility floor. |
| Milk-based powdered infant formula (infant-formula-powder-non-soy) | clean | clean p90 = 0.00 ppb | 0.30 ppb | 230 | 3 | medium | At readiness bar. Path A n_a_tier=3 medium confidence. |
| Soy-based powdered infant formula (infant-formula-powder-soy-based) | dirty | dirty p30 = 0.00 ppb (FDA 2026 sample-level drives target value) | 0.30 ppb | 38 sample-level (FDA 2026) + FSA 2016 infant-formula partial-fit | 3 | medium | At readiness bar (cycle 32 route-audit). Path A n_a_tier=3: FDA 2026 sample-level n=38 + prior corroborator + FSA 2016 infant-formula partial-fit. Chekri does not measure Hg. |
| Milk-based RTF liquid infant formula (infant-formula-rtf-liquid-non-soy) | clean | clean p90 = 0.00 ppb | 0.00 ppb | 20 | 1 | low | Path A thin (n_a_tier=1); second fit sample-level source needed. |
| Soy-based RTF liquid infant formula (infant-formula-rtf-liquid-soy-based) | dirty | dirty p30 = 0.00 ppb (FDA 2026 sample-level drives target value; n=3 below floor) | 0.08 ppb | 3 sample-level (FDA 2026) + FSA 2016 infant-formula partial-fit | 2 | low | Approaching (cycle 31 route-audit). Path A n_a_tier=2: FDA 2026 + FSA 2016 partial-fit. 3rd source needed for medium confidence. |
| Fruit purees (fruit-purees) | standalone (provisional p90) | clean p90 = 0.41 ppb | 0.60 ppb | 14 | 1 | low | Path A thin (n_a_tier=1); second fit sample-level source needed. |
| Non-root vegetable purees (non-root-vegetable-purees) | clean | clean p90 = 0.00 ppb | 0.40 ppb | 13 | 1 | low | Path A thin (n_a_tier=1); second fit sample-level source needed. |
| Root-vegetable purees (root-vegetable-purees) | dirty | dirty p30 = 0.00 ppb (FDA 2024 sample-level drives target value) | 1.10 ppb | 25 sample-level (FDA) + FSA 2016 UK summary | 2 | low | Approaching (cycle 30 route-audit). Path A n_a_tier=2: FDA 2024 sample-level + FSA 2016 UK summary. Target value from sample-level pool unchanged. |
| Meat and poultry purees (meat-and-poultry-purees) | summary-only | summary range | — | 0 | 1 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=1 summary-only. |
| Fish-containing baby foods (fish-containing-baby-foods) | summary-only | summary range from FSA 2016 + Tatsuta 2024 tHg | — | 0 | 2 | low | Approaching (cycle 29 route-audit). n_a_tier=2: FSA 2016 UK meat-and-fish tHg + Tatsuta 2024 tHg (paired with MeHg measurement). 3rd source clears bar. |
| Mixed meals (rice-containing) (mixed-meals-rice-containing) | dirty | dirty p30 = 0.00 ppb | 0.30 ppb | 3 | 1 | low | Path A thin (n_a_tier=1); second fit sample-level source needed. Sample-size warning: n=3 below 10-sample defensibility floor. |
| Mixed meals (non-rice) (mixed-meals-non-rice) | clean | clean p90 = 0.00 ppb (FDA 2024 sample-level drives target value) | 0.40 ppb | 36 sample-level (FDA) + FSA 2016 UK summary | 2 | low | Approaching (cycle 30 route-audit). Path A n_a_tier=2: FDA 2024 sample-level + FSA 2016 UK summary. Target value from sample-level pool unchanged. |
| Teething & snacks (rice-based) (teething-and-snacks-rice-based) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Teething & snacks (non-rice) (teething-and-snacks-non-rice) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Fruit juice (not-canned) (fruit-juice-not-canned) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
Nickel (Ni)
| Subcategory | Clean/dirty | Standard target | p100 | n (Path A) | n_a_tier | Confidence | CC eligibility |
|---|---|---|---|---|---|---|---|
| Infant rice cereal (dry) (baby-cereals-dry-rice-based) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Infant non-rice cereal (dry) (baby-cereals-dry-non-rice) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Milk-based powdered infant formula (infant-formula-powder-non-soy) | summary-only | summary range from existing 2 + Chekri 2019 + FSA 2016 Ni | — | 0 sample-level | 3 | medium | At readiness bar summary-level (cycle 32 route-audit). n_a_tier=3 summary-level. |
| Soy-based powdered infant formula (infant-formula-powder-soy-based) | summary-only | summary range from Chekri 2019 + FSA 2016 infant-formula Ni partial-fit | — | 0 sample-level | 3 | medium | At readiness bar summary-level (cycle 32 route-audit). n_a_tier=3 summary-level: Chekri 2019 FR + FSA 2016 UK infant-formula Ni partial-fit + existing 1 source. |
| Milk-based RTF liquid infant formula (infant-formula-rtf-liquid-non-soy) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Soy-based RTF liquid infant formula (infant-formula-rtf-liquid-soy-based) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Fruit purees (fruit-purees) | summary-only | summary range | — | 0 | 1 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=1 summary-only. |
| Non-root vegetable purees (non-root-vegetable-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Root-vegetable purees (root-vegetable-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Meat and poultry purees (meat-and-poultry-purees) | summary-only | summary range | — | 0 | 1 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=1 summary-only. |
| Fish-containing baby foods (fish-containing-baby-foods) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Mixed meals (rice-containing) (mixed-meals-rice-containing) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Mixed meals (non-rice) (mixed-meals-non-rice) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Teething & snacks (rice-based) (teething-and-snacks-rice-based) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Teething & snacks (non-rice) (teething-and-snacks-non-rice) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Fruit juice (not-canned) (fruit-juice-not-canned) | summary-only | summary range | — | 0 | 1 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=1 summary-only. |
Aluminum (Al)
| Subcategory | Clean/dirty | Standard target | p100 | n (Path A) | n_a_tier | Confidence | CC eligibility |
|---|---|---|---|---|---|---|---|
| Infant rice cereal (dry) (baby-cereals-dry-rice-based) | dirty | dirty p30 = 552 ppb (Toledo 2024 sample-level) | 8800 ppb (Toledo 2024 max) | 14 sample-level (Toledo) + 29 group means (de Paiva) + 17 broad cereal (Chekri) | 3 | medium | At readiness bar (cycle 25). Path A n_a_tier=3: Toledo 2024 Brazilian rice-based infant cereal sample-level n=14 (p30=552, p50=1264, p90=4962, p100=8800 ppb; mean 2553) + de Paiva 2020 Brazilian rice-based pool n=29 group means (range 1300-7130 ppb; concordant with Toledo distribution) + Chekri 2019 French TDS broad cereal n=17 (mean 630 max 3810 ppb; lower than Brazilian; jurisdiction-mix). Confidence=medium per Part 6 (3 studies). Toledo 2024 is the primary admitted-pool sample-level source; de Paiva and Chekri provide concordant summary triangulation. No regulatory cap loaded for Al in dry rice cereal; bioaccessibility 1.5-10.4% per de Paiva is critical risk modifier — total-Al threshold may overstate health risk by 10-50× vs bioaccessible-fraction analysis. |
| Infant non-rice cereal (dry) (baby-cereals-dry-non-rice) | summary-only | summary range from de Paiva 2020 corn-flour pool: 1170-4650 ppb across 2 brand group means + FSA 2016 UK cereal Al | — | 0 sample-level (6 across de Paiva + UK cereal FSA 2016 + FR cereal Chekri 2019 summary) | 3 | medium | At readiness bar summary-level (cycle 31 route-audit). n_a_tier=3 summary-level: de Paiva 2020 Brazilian corn-flour n=6 (below floor) + Chekri 2019 French TDS broad cereal Al + FSA 2016 UK cereal Al. n=6 below 10-sample defensibility floor for non-rice subset; valuable triangulation. |
| Milk-based powdered infant formula (infant-formula-powder-non-soy) | summary-only | summary range from Burrell 2010 + Chuchu 2013 + Almeida 2022 + Dabeka 2011 + FSA 2016 (n_a_tier=5 medium) | — | 0 sample-level (n_a_tier=5 summary corroborators) | 5 | medium | At readiness bar summary-level (cycle 32 mislabel-correction). Path A n_a_tier=5 medium confidence (sufficient per Part 6 medium-3+); was mislabeled “Below bar” while n_a_tier=5 medium was already documented. Sources: Burrell 2010 UK formula Al + Chuchu 2013 UK follow-up + Almeida 2022 Brazilian + Dabeka 2011 Canadian + FSA 2016 UK. Standards target value remains summary range until sample-level Path A admitted. |
| Soy-based powdered infant formula (infant-formula-powder-soy-based) | summary-only | summary range from Burrell 2010 + Chuchu 2013 + Dabeka 2011 soy-powder + Chekri+FSA partial-fit (n_a_tier=3 medium) | — | 0 sample-level (n_a_tier=3 summary corroborators) | 3 | medium | At readiness bar summary-level (cycle 32 mislabel-correction). Path A n_a_tier=3 medium confidence; was mislabeled “Below bar”. Standards target remains summary range until sample-level Path A. |
| Milk-based RTF liquid infant formula (infant-formula-rtf-liquid-non-soy) | summary-only | summary range from Dabeka 2011 + Burrell 2010 + Chuchu 2013 + Chekri 2019 + FSA 2016 partial-fit | — | 0 sample-level (multi-source summary pool) | 4 | medium | At readiness bar summary-level (cycle 32 route-audit). n_a_tier=4 summary-level: Dabeka 2011 + Burrell 2010 UK + Chuchu 2013 + Chekri + FSA partial-fit. Standards target remains summary range. |
| Soy-based RTF liquid infant formula (infant-formula-rtf-liquid-soy-based) | summary-only | summary range from Dabeka 2011 soy-RTF Al + Chekri 2019 + FSA 2016 infant-formula partial-fit | — | 0 sample-level (Dabeka + Chekri + FSA summary) | 3 | medium | At readiness bar summary-level (cycle 31 route-audit). n_a_tier=3 summary-level: Dabeka 2011 Canadian soy-RTF Al direct route + Chekri 2019 FR + FSA 2016 UK infant-formula partial-fit. Target value remains summary range; sample-level Path A would clear to value-bearing. |
| Fruit purees (fruit-purees) | summary-only | summary range | — | 0 | 2 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=2 summary-only. |
| Non-root vegetable purees (non-root-vegetable-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Root-vegetable purees (root-vegetable-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Meat and poultry purees (meat-and-poultry-purees) | summary-only | summary range | — | 0 | 1 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=1 summary-only. |
| Fish-containing baby foods (fish-containing-baby-foods) | summary-only | summary range from FSA 2016 + Chekri 2019 meat-and-fish Al | — | 0 | 2 | low | Approaching summary-level (cycle 29 route-audit). n_a_tier=2: FSA + Chekri partial-fit. |
| Mixed meals (rice-containing) (mixed-meals-rice-containing) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Mixed meals (non-rice) (mixed-meals-non-rice) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Teething & snacks (rice-based) (teething-and-snacks-rice-based) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Teething & snacks (non-rice) (teething-and-snacks-non-rice) | summary-only | summary range from FSA 2016 + Chekri 2019 broad snacks (Al if measured) | — | 0 | 2 | low | Approaching summary-level (cycle 29 route-audit). n_a_tier=2: FSA 2016 UK snacks + Chekri 2019 (if measured: Cd/tAs/Al/Ni/Sn). |
| Fruit juice (not-canned) (fruit-juice-not-canned) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
Hexavalent Chromium (Cr-VI)
Category-wide chemistry resolution (2026-05-09): Hernandez et al. 2019 (hernandez2019-cr-vi-cr-iii-milk-dairy-cereal-france) measured Cr(VI) in 68 French food samples (38 dairy + 30 cereal) by LC-ICP-MS speciation at LOD 0.3-0.4 µg/kg and detected zero Cr(VI) across all samples, confirming the EFSA 2014a finding that food matrices reduce Cr(VI) to Cr(III). The HMTc Cr-VI standard target across all IandC food matrices is therefore ”< LOD with sensitive speciation” — detection at modern method LOD signals matrix anomaly or sample-prep contamination, not actual Cr(VI) presence. The Soares 2000 detected-Cr(VI) values in milk-formula are reinterpreted as method artefact per Hernandez authors’ explicit discussion (older ETAAS+ion-exchange methods are prone to on-column reduction artefacts that LC-ICP-MS avoids).
| Subcategory | Clean/dirty | Standard target | p100 | n (Path A) | n_a_tier | Confidence | CC eligibility |
|---|---|---|---|---|---|---|---|
| Infant rice cereal (dry) (baby-cereals-dry-rice-based) | < LOD (matrix-chemistry resolved) | < LOD ≈ 0.4 µg/kg (Hernandez 2019 cereal LOD) | n/a (<LOD) | 30 cereal-matrix samples (Hernandez 2019, incl. 9 breakfast cereals + 1 rice-and-wheat) | 1 | low | Path A — Cr-VI <LOD; food matrix reduces Cr(VI) to Cr(III). HMTc target = detection itself. |
| Infant non-rice cereal (dry) (baby-cereals-dry-non-rice) | < LOD | < LOD ≈ 0.4 µg/kg | n/a | 30 cereal-matrix samples | 1 | low | Path A — Cr-VI <LOD per Hernandez 2019; matrix-chemistry resolved. |
| Milk-based powdered infant formula (infant-formula-powder-non-soy) | < LOD/<LOQ | < LOQ ≈ 0.05 µg/kg (Saraiva 2021 SS-ID); < LOD ≈ 0.3 µg/kg (Hernandez 2019 LC-ICP-MS) | n/a | n=10 infant formula milk (Saraiva 2021 direct) + 38 dairy-matrix (Hernandez 2019) | 2 | low (n_a_tier=2 = low per Part 6; medium requires 3+ studies) | Path A — Cr-VI <LOQ in 10 infant formula milk samples by SS-ID-HPLC-ICP-MS plus <LOD across 38 dairy samples by LC-ICP-MS. Cooking does not generate Cr(VI) per Saraiva 2021. Supersedes Soares 2000. EFSA 2014a chemistry-mechanism source would clear medium-confidence bar. |
| Soy-based powdered infant formula (infant-formula-powder-soy-based) | < LOD | < LOD ≈ 0.3 µg/kg | n/a | matrix-chemistry inference from dairy | 1 | low | Path A — Cr-VI <LOD by chemistry mechanism; food matrix reduces Cr(VI) to Cr(III). |
| Milk-based RTF liquid infant formula (infant-formula-rtf-liquid-non-soy) | < LOD/<LOQ | < LOQ ≈ 0.05 µg/kg (Saraiva 2021) | n/a | n=10 infant formula milk (Saraiva 2021 direct) + n=10 semi-skimmed milk (Saraiva 2021) + n=3 fluid milk (Hernandez 2019) | 2 | low | Path A — Cr-VI <LOQ across 23 milk-matrix samples by SS-ID-HPLC-ICP-MS + LC-ICP-MS. Direct sample-level evidence from Saraiva 2021. Cooking 70-100°C does not generate Cr(VI). |
| Soy-based RTF liquid infant formula (infant-formula-rtf-liquid-soy-based) | < LOD | < LOD ≈ 0.3 µg/kg | n/a | matrix-chemistry inference | 1 | low | Path A — Cr-VI <LOD by chemistry mechanism. |
| Fruit purees (fruit-purees) | < LOD (chemistry inference) | < LOD ≈ 0.3-0.4 µg/kg | n/a | matrix-chemistry inference (food reduction) | 1 | low | Path A — Cr-VI <LOD by chemistry mechanism per Hernandez 2019 + EFSA 2014a; fruit purees not directly tested but matrix-chemistry inference applies. |
| Non-root vegetable purees (non-root-vegetable-purees) | < LOD (chemistry inference) | < LOD ≈ 0.3-0.4 µg/kg | n/a | matrix-chemistry inference | 1 | low | Path A — Cr-VI <LOD by chemistry mechanism. |
| Root-vegetable purees (root-vegetable-purees) | < LOD (chemistry inference) | < LOD ≈ 0.3-0.4 µg/kg | n/a | matrix-chemistry inference | 1 | low | Path A — Cr-VI <LOD by chemistry mechanism. |
| Meat and poultry purees (meat-and-poultry-purees) | < LOQ | < LOQ ≈ 0.05 µg/kg (Saraiva 2021) | n/a | n=10 bovine meat samples (Saraiva 2021 direct, raw + cooked at 95°C and 120°C) | 2 | low | Path A — Cr-VI <LOQ in 10 bovine meat samples (incl. chorizo sausage) by SS-ID-HPLC-ICP-MS. Frying ±oil at 95-120°C does not generate Cr(VI) per Saraiva 2021. Combined with Hernandez 2019 chemistry-mechanism. Poultry-specific direct sample-level confirmation pending. |
| Fish-containing baby foods (fish-containing-baby-foods) | < LOD (chemistry inference) | < LOD ≈ 0.3-0.4 µg/kg | n/a | matrix-chemistry inference | 1 | low | Path A — Cr-VI <LOD by chemistry mechanism. |
| Mixed meals (rice-containing) (mixed-meals-rice-containing) | < LOD (chemistry inference) | < LOD ≈ 0.3-0.4 µg/kg | n/a | matrix-chemistry inference (cereal + dairy + meat all <LOD) | 1 | low | Path A — Cr-VI <LOD by chemistry mechanism. |
| Mixed meals (non-rice) (mixed-meals-non-rice) | < LOD (chemistry inference) | < LOD ≈ 0.3-0.4 µg/kg | n/a | matrix-chemistry inference | 1 | low | Path A — Cr-VI <LOD by chemistry mechanism. |
| Teething & snacks (rice-based) (teething-and-snacks-rice-based) | < LOD | < LOD ≈ 0.4 µg/kg | n/a | 7 biscuits + 5 rice/wheat (Hernandez 2019) | 1 | low | Path A — Cr-VI <LOD per Hernandez 2019 cereal-matrix samples. |
| Teething & snacks (non-rice) (teething-and-snacks-non-rice) | < LOD | < LOD ≈ 0.4 µg/kg | n/a | 7 biscuits + 8 bread (Hernandez 2019) | 1 | low | Path A — Cr-VI <LOD per Hernandez 2019. |
| Fruit juice (not-canned) (fruit-juice-not-canned) | < LOD (chemistry inference) | < LOD ≈ 0.3-0.4 µg/kg | n/a | matrix-chemistry inference | 1 | low | Path A — Cr-VI <LOD by chemistry mechanism. |
Tin (Sn)
| Subcategory | Clean/dirty | Standard target | p100 | n (Path A) | n_a_tier | Confidence | CC eligibility |
|---|---|---|---|---|---|---|---|
| Infant rice cereal (dry) (baby-cereals-dry-rice-based) | summary-only | summary range | — | 0 | 1 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=1 summary-only. |
| Infant non-rice cereal (dry) (baby-cereals-dry-non-rice) | summary-only | summary range from FSA 2016 UK cereal Sn + Chekri 2019 FR cereal Sn | — | 0 sample-level | 2 | low | Approaching summary-level (cycle 31 route-audit). n_a_tier=2 summary-level: FSA 2016 UK cereal Sn + Chekri 2019 FR cereal Sn. Both partial-fit (cereal not split rice/non-rice). 3rd source needed for medium confidence. |
| Milk-based powdered infant formula (infant-formula-powder-non-soy) | summary-only | summary range from Almeida 2022 + Chekri 2019 + FSA 2016 Sn | — | 0 sample-level | 3 | medium | At readiness bar summary-level (cycle 32 route-audit). n_a_tier=3 summary-level. |
| Soy-based powdered infant formula (infant-formula-powder-soy-based) | summary-only | summary range from Chekri 2019 + FSA 2016 + Almeida 2022 Sn | — | 0 sample-level | 3 | medium | At readiness bar summary-level (cycle 32 route-audit). n_a_tier=3 summary-level: Chekri + FSA + Almeida 2022 cow-milk-based formula Sn (Almeida explicitly excludes soy but Sn is matrix-similar). |
| Milk-based RTF liquid infant formula (infant-formula-rtf-liquid-non-soy) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Soy-based RTF liquid infant formula (infant-formula-rtf-liquid-soy-based) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Fruit purees (fruit-purees) | summary-only | summary range | — | 0 | 2 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=2 summary-only. |
| Non-root vegetable purees (non-root-vegetable-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Root-vegetable purees (root-vegetable-purees) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Meat and poultry purees (meat-and-poultry-purees) | summary-only | summary range | — | 0 | 1 | low | Below bar; Path B candidate (no sample-level distribution); n_a_tier=1 summary-only. |
| Fish-containing baby foods (fish-containing-baby-foods) | summary-only | summary range from FSA 2016 + Chekri 2019 meat-and-fish Sn | — | 0 | 2 | low | Approaching summary-level (cycle 29 route-audit). n_a_tier=2: FSA + Chekri partial-fit. Canned-fish-Sn-leach context (Tarigan 2016 / Benoy 1971 / ATSDR 2005) applies to canned subset only. |
| Mixed meals (rice-containing) (mixed-meals-rice-containing) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Mixed meals (non-rice) (mixed-meals-non-rice) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Teething & snacks (rice-based) (teething-and-snacks-rice-based) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Teething & snacks (non-rice) (teething-and-snacks-non-rice) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
| Fruit juice (not-canned) (fruit-juice-not-canned) | data gap | — | — | 0 | 0 | data gap | Below bar; corpus exhausted within current ingest scope; raw/markdown manifest sweep needed. |
Per-Subcategory Readiness Roll-up
Each cell tagged by status: AT-BAR (Path A n_a_tier≥2 + medium confidence), APPROACHING (n_a_tier=2 low), THIN (n_a_tier=1 with sample-level), GAP (no sample-level or n_a_tier=0).
| Subcategory | At bar | Approaching | Path A thin | Data gap |
|---|---|---|---|---|
| Infant rice cereal (dry) | Pb (dirty p30=3.30 ppb), Cd (clean p90=22.00 ppb), tAs (dirty p30=102 ppb), Al (dirty p30=552 ppb) | iAs, MeHg, tHg | Ni, Cr-VI, Sn | — |
| Infant non-rice cereal (dry) | Pb (clean p90=7.84 ppb), Cd (dirty p30=11.36 ppb), tAs, Al (summary-level n_a_tier=3) | Sn (summary) | iAs, MeHg, tHg, Ni, Cr-VI | — |
| Milk-based powdered infant formula | Pb, Cd, tAs, tHg, iAs (summary), Al (summary), Ni (summary), Sn (summary) | — | MeHg, Cr-VI | — |
| Soy-based powdered infant formula | Pb, Cd, tAs, tHg, Al (summary), Ni (summary), Sn (summary) | — | iAs, MeHg, Cr-VI | — |
| Milk-based RTF liquid infant formula | Pb, Cd, tAs, Al (summary) | — | iAs, MeHg, tHg, Ni, Cr-VI, Sn | — |
| Soy-based RTF liquid infant formula | Pb (clean p90=0.36 ppb), Cd (dirty p30=0.86 ppb), tAs (dirty p30=1.08 ppb), Al (summary-level n_a_tier=3) | tHg | iAs, MeHg, Ni, Cr-VI, Sn | — |
| Fruit purees | Pb (clean p90=2.37 ppb), Cd (clean p90=2.12 ppb), tAs | — | iAs, MeHg, tHg, Ni, Cr-VI | Al, Sn |
| Non-root vegetable purees | Pb (clean p90=1.76 ppb), Cd (clean p90=11.90 ppb), tAs | — | iAs, MeHg, tHg, Ni, Al, Cr-VI, Sn | — |
| Root-vegetable purees | Pb (dirty p30=3.74 ppb), Cd (dirty p30=3.95 ppb), tAs | tHg | — | iAs, MeHg, Ni, Al, Cr-VI, Sn |
| Meat and poultry purees | Cd (summary-level n_a_tier=3) | Pb (summary-level) | tAs, iAs, MeHg, tHg, Ni, Al, Cr-VI, Sn | — |
| Fish-containing baby foods | Cd (summary-level n_a_tier=3) | Pb, tAs, tHg, Al, Sn (summary) | iAs, MeHg, Ni, Cr-VI | — |
| Mixed meals (rice-containing) | Cd (dirty p30=0 ppb; n=9 below floor caveat), tAs (n=9 below floor caveat) | Pb | iAs, MeHg, tHg, Ni, Al, Cr-VI, Sn | — |
| Mixed meals (non-rice) | Cd (clean p90=5.08 ppb), tAs | Pb, tHg | iAs, MeHg, Ni, Al, Cr-VI, Sn | — |
| Teething & snacks (rice-based) | — | Pb, Cd, tAs, iAs, Al (summary) | MeHg, tHg, Ni, Cr-VI, Sn | — |
| Teething & snacks (non-rice) | — | Pb, Cd, tAs, Al (summary) | iAs, MeHg, tHg, Ni, Cr-VI, Sn | — |
| Fruit juice (not-canned) | Pb (dirty p30=0 ppb / p90=12.0 ppb) | iAs | Cd, tAs, MeHg, tHg, Ni, Al, Cr-VI, Sn | — |
Source Legend
The numbered citations would normally route here in IEEE-style; this expansion deferred per-cell numbering pending consolidation of overnight digest-batch source pages (commits 745aeed, 66af802, d5b9ea5, bccc91c added 38+ new source pages between Phase 5 v1 and this expansion). The canonical evidence inventory for each cell is on the constituent product-category page; cross-link via the subcategory column above.
Primary A-tier sources contributing to multiple cells in this master:
- fda2024-toxic-elements-baby-food-compliance-2009-2024 — FDA FY2009-FY2024 baby-food/young-child compliance samples; sample-level Pb, Cd, tAs, tHg by row_slug.
- fda2026-infant-formula-toxic-elements-special-survey — FDA FY2023-FY2025 infant formula special survey; sample-level Pb, Cd, tAs, tHg with explicit non-soy/soy/RTF/concentrated splits.
- fda2016-infant-toddler-foods-inorganic-arsenic — FDA 2016 inorganic arsenic in infant/toddler foods; sample-level iAs for rice (n=76), multigrain-with-rice (n=6), non-rice cereal (n=30), Juice-Grape (n=61).
- fda2011-apple-juice-arsenic-speciation — FDA 2011 single-strength apple juice; sample-level iAs n=94.
- jackson2012-arsenic-speciation-infant-formulas-first-foods — Dartmouth U.S. infant formulas and first foods; sample-level As speciation by HPLC-ICP-MS (added overnight via digest-batch-4).
- signes-pastor2016-inorganic-arsenic-rice-products-infants — Inorganic arsenic in rice-based products for infants; baby rice n=29, rice cereals n=53, rice crackers n=199.
- dabeka2011-canada-infant-formula-lead-cadmium-aluminum — Canadian infant formulae; Al, Cd, Pb summary by non-soy/soy/RTF/concentrated split.
- almeida2022-brazil-infant-formula-toxic-metals — Brazilian phase 1/2 cow-milk infant formula powder; Al, tAs, Cd, Sn, tHg, Pb, U range/summary.
- kazi2009-toxic-elements-in-infant-formulae — Pakistani milk-based and soy-based infant formulae; Al, Cd, Pb summary.
- pandelova2012-eu-baby-food-formula-elements — EU pooled market-basket formula; Cd, Pb pooled-basket summary.
- fsa2016-infant-food-formula-metals-survey — UK FSA infant foods/formula survey; broad category averages across 47-200 samples per category.
- chekri2019-french-infant-toddler-tds-trace-elements — French TDS infant/toddler; Al/Sb/tAs/Cd/Cr/Co/Ni/Sn/V across multiple infant-food categories.
- meli2024-chemical-characterization-baby-food-italy — Italian baby foods small-N analytical study; Al, tAs, Cd, tHg, Ni, Pb, Sn for powdered milk, fruit homogenized, meat, fish, cereal-cream subsets.
- parker2022-baby-food-arsenic-cadmium-lead-mercury-risk — U.S. baby foods n=36; tAs, Cd, Pb, tHg by ingredient category.
- burrell2010-aluminium-in-infant-formulas — UK infant formula Al; n=7 grouped means.
- chuchu2013-aluminium-in-infant-formulas — UK infant formula Al follow-up; n=18 grouped means.
- soares2000-chromium-vi-powdered-milk-formulas — Portuguese powdered milk infant formulas; Cr(VI) means/ranges by infant/follow-up/dietetic subset.
- tatsuta2024-methylmercury-intake-children-duplicate-diet — Japanese 0-5 children duplicate-diet MeHg + tHg; primary MeHg source for fish-containing baby foods.
- spungen2024-fda-tds-infant-lead-cadmium — FDA TDS infant Pb/Cd FY2018-2020 with named-food subsets including sweet potato baby food.
- collado-lopez2025-heavy-metals-baby-food-formula — Global scoping review; Pb/Cd/As/Hg in processed baby foods and infant formulas.
- carignan2015-arsenic-exposure-breastfed-formula-fed-infants — Dartmouth NHBC; urinary arsenic biomarker comparison of breastfed vs formula-fed infants.
- carignan2016-breast-milk-formula-arsenic-first-year-cohort — Dartmouth NHBC longitudinal first-year-of-life arsenic exposure by feeding mode.
- pikounis-urinary-biomarkers-infant-formula-vs-human-milk — Dartmouth + Brigham/Harvard infant cohort; urinary biomarkers by feeding mode.
- thoerig2025-toxic-elements-pfas-human-milk-formula-systematic-review — AJCN 2025 systematic review of As, Cd, Pb, Hg, PFAS in human milk and infant formula.
- rothenberg2021-maternal-methylmercury-rice-child-neurodevelopment-china — Rural China prospective cohort (n=391); maternal MeHg from rice ingestion paired with child Bayley neurodev outcomes through 36 months. Exposure-pathway evidence for the rice-as-MeHg-pathway (not direct rice MeHg occurrence).
- marques2021-trace-elements-milks-plant-based-drinks — Spanish cow/goat milk + soy/almond/rice/oat plant-based drinks + infant formulas; ICP-MS Hg, Pb, U, V, plus essentials. Direct primary occurrence for plant-milk and milk-based formula matrices. (Already existed on wiki at this session start; cited here for legend completeness.)
- chandravanshi-shiv-kumar-2021-cadmium-developmental-toxicity-infants-children-review — Pediatric Cd developmental toxicology review (kidneys, liver, heart, nervous system); supports vulnerable-population HMTc Cd-threshold rationale.
- signes-pastor2017-urinary-arsenic-speciation-children-pregnant-women-spain — Spanish INMA cohort; urinary As speciation in children and pregnant women. European biomarker counterpart to the Dartmouth U.S. infant-As cluster.
- carroquino-posada-landrigan-environmental-toxicology-children-at-risk — Encyclopedia of Sustainability Science and Technology pediatric environmental toxicology chapter (Landrigan); foundational secondary reference for the child-vulnerable-population framework.
- gu2020-arsenic-rice-infant-food-australia — Australian rice-based infant food n=39 (rice milk powder, rice pasta, rice cereal, rice crackers); tAs and iAs by ICP-MS with HPLC speciation. Summary-level (mean ± SE), CC BY OA via PMC EFetch. Brings rice-cereal tAs cell to n_a_tier=2; rice-cracker tAs and iAs cells to n_a_tier=2; first primary A-tier source for plant-milks-rice-based iAs.
- brombach2017-methylmercury-european-commercial-rice — European commercial rice n=87 (incl. n=7 baby-food rice samples 11-17 + n=2 toddler rice cakes samples 18-19); SPE-HPLC-CV-AFS validated against SS-ID-GC-ICPMS. tHg 0.53-11.1 ppb mean 3.04 ± 2.7; MeHg 0.11-6.45 ppb mean 1.91 ± 1.07; MeHg/tHg fraction 71 ± 26%. Closes rice-cereal MeHg cell from “exposure-pathway only” (Rothenberg 2021) to Path A primary occurrence n_a_tier=2; closes rice-cracker MeHg cell to Path A thin n_a_tier=1; provides rice-ingredient MeHg cascade for rice-mixed-meal and rice-plant-milk subcategories. Author-emailed copy on file.
- depaiva2020-aluminum-cereal-based-baby-foods-brazil — Brazilian cereal-based infant cereal n=35 across 6 product compositions (multicereals, fruit-banana-apple, fruit-plum, rice-and-oat, corn-flour, rice-flour) × 3 brands; total Al by ICP-OES + in vitro bioaccessibility. Group-mean Al range 0.92-8.82 mg/kg (= 920-8820 ppb); bioaccessibility 1.5-10.4%. Closes Al-rice-cereal cell from Path B candidate (single-source) to Path A summary-level n_a_tier=2 (de Paiva + Chekri); closes Al-non-rice-cereal cell similarly with n=6 corn-flour samples (below defensibility floor; triangulation only). Karen-fetched copy on file.
- hernandez2019-cr-vi-cr-iii-milk-dairy-cereal-france — French general-population n=68 (38 dairy + 30 cereal) by LC-ICP-MS speciation. Cr(VI) not detected in any sample at LOD 0.3-0.4 µg/kg; total Cr quantified in 58% (dairy) / 76% (cereal). Closes the Cr-VI gap across all 14 IandC subcategories from data gap to Path A primary occurrence (<LOD by sensitive speciation; chemistry mechanism — food matrix reduces Cr(VI) to Cr(III) per EFSA 2014a). Supersedes Soares 2000 detected Cr(VI) values in milk-formula (older ETAAS method, reinterpreted as method artefact per Hernandez authors’ discussion). Karen-fetched copy on file.
- saraiva2021-chromium-speciation-milk-meat-cooking-france — France/Denmark collaboration; n=30 (10 infant formula milk + 10 semi-skimmed milk + 10 bovine meat) by gold-standard SS-ID-HPLC-ICP-MS at LOQ 0.049 µg/kg Cr(VI). Cr(VI) not quantified in any sample; Cr(III) ≈ Cr_total demonstrating Cr is exclusively Cr(III) in food. Thermal cooking (boiling 70-100°C, frying 95-120°C ±oil) does NOT generate Cr(VI). Direct sample-level evidence for infant formula milk (n=10) and bovine meat (n=10) Cr-VI cells; brings n_a_tier to 2 (Hernandez + Saraiva) for milk-based formula and meat-and-poultry-purees subcategories. EFSA 2014a chemistry-mechanism opinion would push to n_a_tier=3 (medium confidence). Karen-fetched copy on file.
- sipahi2014-toxic-metals-infant-formulas-turkey — Turkish n=63 across milk-based (28), cereal-based (23), and mixed (12) infant foods; Pb, Cd, Al, Mn, Cr, Co by GFAAS. Group-mean Pb 7.14 ± 4.00 ppb across all 63 (10× higher than U.S. FDA 2026 milk-formula); Cd significantly higher in cereal-based (8.88 ppb) and mixed (5.50 ppb) than milk-based (0.96 ppb) per p<0.001. Adds n_a_tier breadth across multiple Pb/Cd/Al cells; flagged Al unit-label inconsistency between table (ng/g) and discussion (µg/g) for downstream caveats. Geographic context (Turkish 2006 market). Karen-fetched copy on file.
- sadiq-beauchemin-2021-multielemental-baby-rice-cereals — Canadian baby rice cereal n=3 brands; total + speciation + bio-accessibility for As/Cr/Se/Cd/Pb/Cu/Fe/Zn by HPLC-ICPMS with online artificial saliva+gastric+intestinal fluid leaching. Bio-accessibility: As 95-100%, Cr 29-100%, Pb 62-100%, Se 70-100%, Cd 63-100%. Speciation: bio-accessible As is 100% As(V); 70-100% of Cr is Cr(III) (consistent with Hernandez+Saraiva chemistry; 0-30% non-Cr(III) fraction likely methodological, not real Cr(VI) per Saraiva 2021 SS-ID supersession). First A-tier bio-accessibility A-tier source for rice cereal cells; small N=3 below defensibility floor but provides primary bio-accessibility-dimension evidence. CC BY 4.0 OA. Karen-fetched copy on file.
- elsheikh2020-toxic-trace-elements-children-foods-infant-formulae-saudi — Saudi Arabian (Turabah) n=57 across 19 brands; 3 infant formula + 1 Cerelac + 16 general children’s snack foods (potato chips, popcorn, biscuits, sweets, cocoa, etc.). ICP-OES, B-tier journal rating. Pb/Cd/As mostly ND across formula and Cerelac. Notable Al outliers: baby powder milk brand 19 daily intake 391.12 µg/kg/day (exceeds FAO/WHO PTDI 285.7); biscuit brand 6 total Al 291,900 ppb (likely high-Al baking soda ingredient). Most product types out-of-scope for HMTc Cat 1 architecture; flagged-anomaly Al values worth brand-level follow-up but not standards-math drivers. Karen-fetched copy on file.
- kirkpatrick1980-trace-elements-canadian-baby-foods — Historical-baseline B-tier reference, Canadian Health Protection Branch national survey 1975 sample collection (n=330 combined samples across 11 categories: prepared+powdered formula, strained+junior meats/vegetables/desserts, juices, cereals, evap milks). AAS at LOD 0.01 ppm = 10 ppb (two orders of magnitude higher than modern ICP-MS). Reports Cd, Cr-total, Co, Cu, Fe, Pb, Mn, Ni, Zn (no Al/As/Hg/Sn). LOD-substitution policy inflates means by 1-2 orders of magnitude vs modern data. Principal value: documents 50-year reduction trajectory — 1980 mean Pb prepared formula 30 ppb (LOD-floored) vs FDA 2026 mean 0.4 ppb = ~75× reduction; 1980 mean Pb juice 220 ppb vs FDA 2024 1.5 ppb = ~150× reduction reflecting lead-soldered-can phaseout. Adds n_a_tier=1 to multiple subcategories with historical-baseline caveat; not a modern-percentile-math driver. Cr is total only; per Hernandez+Saraiva chemistry, food-matrix Cr is Cr(III), so 1980 cereal Cr 0.31 ppm is consistent with Cr-III dominance, not Cr-VI. Karen-fetched copy on file.
- ouyang2022-early-life-microbiota-delivery-feeding — B-tier secondary-reference background source (Elsevier book chapter, Ouyang/Korpela/Liu/Xu/de Vos/Kovatcheva-Datchary, Comprehensive Gut Microbiota Volume 2). Reviews delivery-mode and infant-feeding drivers of infant microbiome development. No heavy-metal data; no concentrations measured; no n_a_tier impact on any cell. Ingested as background reference for the HMTc Cat 1 vulnerable-population framing — documents the microbiome-development trajectory (bifidobacteria → Lachnospiraceae/Ruminococcaceae shift at weaning) that situates the 4-12-month complementary-feeding window when HMTc Cat 1 foods are consumed. Also documents formula-fed-vs-breast-fed microbiome differences (lower bifidobacteria, higher Proteobacteria/Clostridiales in formula-fed) that contextualize the Dartmouth NHBC urinary-As-biomarker findings. Filed in
wiki/sources/rather thanwiki/microbiome/per CLAUDE.md primary-mechanism scoping (heavy-metal exposure is not the chapter’s primary mechanism). Karen-fetched copy on file.
For per-page primary sources see each constituent product-category page’s Source Evidence Inventory.
Phase 6 reference
Detailed cell-by-cell readiness state and the data-gap-with-rationale notes are in the Phase 6 overnight final report at infant-and-child-overnight-2026-05-09.
Coordination payload for Cowork (Heavy Metals in Infant and Child Foods Standards Briefing)
Refreshed 2026-05-11 (cycle 34). Cowork’s hmtc-standards skill builds the Standards Briefing as a .docx.
Two readiness tiers for the Briefing
Strict-publishable tier (gap-report READY): 1 cell across IandC. Tooling at tools/evidence/build-standards-gap-report.mjs gates on “2+ sample-level distribution-capable A-tier sources”:
fruit-juice-not-cannediAs (n=152 sample-level from FDA 2011 apple n=94 + FDA 2016 grape n=58 cross-juice context)
Permissive curator-narrative tier (master at-bar; CLAUDE.md Part 6 strict reading): 41 IandC at-bar cells. Counts sample-level + summary-level A-tier sources toward n_a_tier confidence calibration per Part 6 (3+ studies = medium). All cells carry inline method-quality + sample-size + partial-fit caveats.
Per-subcategory at-bar summary (cycle 34 state)
| Subcategory | At-bar | At-bar analytes |
|---|---|---|
| Infant rice cereal (dry) | 4 | Pb (3.30), Cd (22.00), tAs (102), Al (552) ppb |
| Infant non-rice cereal (dry) | 4 | Pb (7.84), Cd (11.36), tAs, Al (summary) |
| Milk-based powdered infant formula | 8 | Pb (0.40), Cd (0.40), tAs (1.30), tHg (0.00); iAs/Al/Ni/Sn summary-level |
| Soy-based powdered infant formula | 7 | Pb (0.30), Cd (0.60), tAs (0.80), tHg (0.00); Al/Ni/Sn summary-level |
| Milk-based RTF liquid infant formula | 4 | Pb (0.20), Cd (0.60), tAs (1.21), Al (summary) |
| Soy-based RTF liquid infant formula | 4 | Pb (0.36), Cd (0.86), tAs (1.08), Al (summary); n=3 below-floor caveats |
| Fruit purees | 3 | Pb (2.37), Cd (2.12), tAs |
| Non-root vegetable purees | 3 | Pb (1.76), Cd (11.90), tAs |
| Root-vegetable purees | 3 | Pb (3.74), Cd (3.95), tAs |
| Meat and poultry purees | 1 | Cd (summary-level n_a_tier=3) |
| Fish-containing baby foods | 1 | Cd (summary-level n_a_tier=3) |
| Mixed meals (rice-containing) | 2 | Cd (0.00), tAs (n=9 below-floor caveat) |
| Mixed meals (non-rice) | 2 | Cd (5.08), tAs |
| Teething & snacks (rice-based) | 0 | — (5 analytes Approaching with FSA + Signes-Pastor) |
| Teething & snacks (non-rice) | 0 | — (4 analytes Approaching) |
| Fruit juice (not-canned) | 1 | Pb (dirty p30=0 / p90=12.0 ppb sample-level) |
Total IandC at-bar: 41 cells. Standards target values come from sample-level distributions (FDA 2024 baby-food compliance, FDA 2026 special survey, FDA 2018 longitudinal juice Pb, FDA 2011 apple-juice iAs, FDA 2016 grape-juice iAs, Toledo 2024 Brazilian infant cereal) where they exist; Chekri 2019, FSA 2016, Kirkpatrick 1980, Elsheikh 2020, de Paiva 2020 contribute toward n_a_tier confidence calibration as summary-level corroborators with explicit method/sample-size/partial-fit caveats inline.
Recommended Briefing structure
- Strict gate: 1 publishable-as-tooling cell (fruit-juice-not-canned iAs)
- Curator-approved gate: 41 IandC at-bar cells with caveat-inline narrative
- Standards Briefing centerpiece candidates by regulatory pull:
- Rice cereal: 4 cells (Pb 3.30 ppb 84% below 20 ppb FDA cap; Cd 22.00 well below 40 ppb EU; tAs 102 ppb no cap loaded; Al 552 ppb with bioaccessibility 1.5-10.4% caveat)
- Apple-juice (Cat 5): iAs 3.0 ppb 70% below FDA CTZ 10 ppb cap; Pb 6.0 ppb 40% below FDA 2022 draft 10 ppb cap
- Non-apple juice (Cat 5): Pb p95 20.7 ppb right at FDA 2022 draft 20 ppb cap (upper-tail signal)
- Root-vegetable purees: Pb 3.74 ppb 81% below FDA 20 ppb root-veg cap; Cd 3.95 ppb below 40 ppb EU
- Powdered formula (both milk + soy): comprehensive Pb/Cd/tAs/tHg/Al/Ni/Sn coverage; first cohesive Standards Briefing centerpiece
Cells deferred for tooling-strict-gate upgrade
The 41 curator-at-bar cells stay at “permissive gate” until they accumulate 2+ sample-level distribution-capable A-tier sources. Closing them to the strict tooling gate requires either:
- FDA TDS meat-subset, fish-subset sample-level extraction (would unlock meat-poultry-purees + fish-containing Pb/Cd/tAs/tHg)
- Brombach 2017 supplementary Table S1 fetch (would unlock rice-cereal MeHg)
- Da Mato 2026 supplementary tables (Cat 5 rice plant-milk iAs)
- Multi-source per-subcategory ICP-MS sample-level surveys (general)
See cycles-21-26-final-summary-2026-05-09 for the Tier 2 external-acquisition wishlist.