Infant Formula, RTF Liquid (Soy-Based)
This page is a structural scaffold for HMTc Category 1 row 4. One broad infant-formula source has been promoted; ready-to-feed-specific and Al/Ni-specific evidence is still pending.
Heavy Metal Index pages are written for several audiences at once. Each entry point below names where to start if you are reading the page with a specific question in mind.
- Brand legal and regulatory affairs
- Ready-to-feed soy-based formula has the thinnest occurrence evidence in the formula family. The Literature Evidence Summary reports source count and confidence rating per analyte so the gaps are explicit. Compare with the soy-based powder format-sibling.
- Retailer quality and compliance
- The Federal / Regulatory Limits vs Field Findings section compares the applicable regulatory cap to cited field evidence. Ready-to-feed evidence often comes from prepared-for-feeding studies that need a basis caveat before comparison.
- Brand QA and product development
- Use the Lab Result Comparator to position a single lab value inside the cited literature for this matrix.
- Regulators, journalists, and adversarial readers
- Every numeric claim traces to a source page. The Evidence Governance note explains what this page is and is not (literature evidence, not HMT&C certification thresholds).
- HMT&C staff (internal)
- Threshold-selection arithmetic lives at infant-formula-rtf-liquid-soy-based, not on this public page.
Federal / Regulatory Limits vs Field Findings
This is the fast comparison view for standards developers, regulators, retailers, brands, and legal teams. It shows the applicable federal or regulatory limit next to the current field-evidence state. It is not an HMTc pass/fail table; technical distributions remain in the evidence sections below.
| Metal | Federal / regulatory limit | Actual field finding | Decision read | Evidence |
|---|---|---|---|---|
| lead (Pb) | eu2023-contaminants-maximum-levels: EU European Commission maximum level: 10 ug/kg Pb. Scope: infant formulae, follow-on formulae, and young-child formulae placed on the market as liquid. Basis: product as placed on market. | FDA 2026 ready-to-feed soy subset: N=3; Pb detected 0.2-0.4 ug/kg; ready-to-feed values are the relevant liquid basis. | Direct comparison available; matrix, analyte species, and unit basis match. Not an HMTc certification limit. | eu2023-contaminants-maximum-levels; fda2026-infant-formula-toxic-elements-special-survey |
| cadmium (Cd) | eu-2023-915-cadmium: EU European Commission maximum level: 10 ug/kg Cd. Scope: infant formulae, follow-on formulae, food for special medical purposes intended for infants and young children, and young-child formulae placed on the market as liquid and manufactured from soy protein isolates alone or mixed with cow’s milk proteins. Basis: product as placed on market. | FDA 2026 ready-to-feed soy subset: N=3; Cd detected 0.8-1.1 ug/kg; ready-to-feed values are the relevant liquid basis. | Direct comparison available; matrix, analyte species, and unit basis match. Not an HMTc certification limit. | eu-2023-915-cadmium; fda2026-infant-formula-toxic-elements-special-survey |
| arsenic-inorganic (iAs) | eu2023-contaminants-maximum-levels: EU European Commission maximum level: 10 ug/kg iAs. Scope: infant formulae, follow-on formulae, food for special medical purposes intended for infants and young children, and young-child formulae placed on the market as liquid. Basis: product as placed on market. | FDA 2026 reports total arsenic for this formula subset; no comparable inorganic arsenic field row is loaded. | No conversion offered. Regulatory ceiling is on inorganic arsenic; cited occurrence row reports total arsenic. The two are toxicologically and regulatorily distinct. See the page Methodology section for the non-substitutability rule on speciation. | eu2023-contaminants-maximum-levels; fda2026-infant-formula-toxic-elements-special-survey |
Evidence Governance
Public evidence label: Modeled or limited evidence.
This page is part of the Category 1 Evidence Fitness pilot. It summarizes source-backed occurrence evidence, partial distributions, and data gaps for this product row. Existing cited tables remain public page-level synthesis; value-level tracking is maintained in the staff Standards Workbench.
This page does not publish or justify HMT&C certification limits. Public Index pages show what the cited sources say, what is still uncertain, and where readers can verify the evidence trail.
Literature Evidence Summary
The table below summarizes what the peer-reviewed and government literature cited on this page reports for heavy-metal concentrations in soy-based, ready-to-feed liquid infant formula. Values are pulled directly from cited sources without re-aggregation; pooling, percentile selection, and threshold math sit in the staff Standards Workbench rather than this public page.
Methodology rules for speciation, basis preservation, non-detect handling, and source pooling are stated in the Methodology section above and apply to every row below.
| Analyte | Subcategory | Reported concentration range | Detection rate | Applicable regulatory cap | Sources | Confidence | Basis |
|---|---|---|---|---|---|---|---|
| Al | soy-based, ready-to-feed liquid (summary-only / supporting context) | mean 730 ppb (1 source); highest reported 1121 ppb | 100% detected (14/14, Dabeka 2011, as-consumed) | No applicable cap loaded | 1 cited | low (1-2 sources) | as-consumed |
| Ni | soy-based, ready-to-feed liquid (no contributing evidence loaded) | No concentration data loaded for this analyte | Sample-level detection rate not reported | No applicable cap loaded | 0 | data gap | Basis not reported |
| Cd | soy-based, ready-to-feed liquid (direct row-fit) | mean/median 0.9 to 2.35 ppb (3 sources); highest reported 7.55 ppb | 100% detected (16/16, Dabeka 1987, as-consumed) | eu-2023-915-cadmium: 10 ppb (product as placed on market) | 3 cited | medium (3 sources) | prepared-for-feeding; as-consumed |
Lead Benchmark Context
HMI normalizes this row’s lead benchmarks to ppb so regulatory ceilings, exposure screens, and occurrence values can be compared on one concentration scale. The values below do not all mean the same thing: FDA and EU entries are regulatory context, Prop 65 is a serving-based exposure screen, and source tables on this page remain occurrence evidence.
| Reference point | Lead ppb view | Basis | How to use it |
|---|---|---|---|
| Current FDA | Not established | No current formula-specific FDA lead action level | FDA 2025 processed-baby-food lead guidance excludes infant formula |
| EU 2023/915 | 10 ppb | as placed on market as liquid | EU maximum level. |
| Prop 65 MADL screen | 0.625 ppb | Illustrative 800 g/day ready-to-feed intake screen; formula-specific exposure model required | Derived from the 0.5 ug/day lead MADL using 500 ÷ grams/day; not a product-specific food limit. |
| HMTc standards use | ppb-normalized context | All values are shown in ppb, but the FDA entry is a not-established status and the Prop 65 value is an exposure conversion, not a commodity limit. | Do not compare RTF formula to dry-powder limits; use prepared/liquid occurrence data and the EU liquid ceiling as external legal context. |
RTF soy formula needs basis-matched occurrence review; the Prop 65 ppb screen is driven by assumed daily intake volume.
Full crosswalk: lead-benchmark-context.
Scaffold Status
- Page state: evidence-backed scaffold; row-specific synthesis remains incomplete.
- Source coverage: measured-values table populated from promoted A-tier sources; row-fit caveats remain in the table.
- Next ingest target: formula-specific Al, Ni, and Cd data for soy-based ready-to-feed liquid infant formula.
- Ingredient targets are unresolved app-taxonomy placeholders, not source-backed typical-ingredient findings.
Measured Values And Concentration Evidence
No promoted source currently gives a ready-to-feed soy-formula concentration table. The closest direct evidence is ready-to-feed formula without a soy split and dry soy formula as sold.
| Analyte | Evidence scope | Reported value | Approximate ppb equivalent | Source | Row-fit caveat |
|---|---|---|---|---|---|
| Lead | UK ready-to-feed first/hungrier milk | 0 to 0.4 ug/L | 0 to 0.4 ppb in liquid formula | fsa2016-infant-food-formula-metals-survey | Ready-to-feed formula, but not soy-specific. |
| Cadmium | UK ready-to-feed first/hungrier milk | 0 to 0.2 ug/L | 0 to 0.2 ppb in liquid formula | fsa2016-infant-food-formula-metals-survey | Ready-to-feed formula, but not soy-specific. |
| Aluminum | UK dry soy-based formula, as sold | 2550 ug/kg | 2550 ppb | fsa2016-infant-food-formula-metals-survey | Soy-specific, but dry powder rather than ready-to-feed liquid. |
| Cadmium | UK dry soy-based formula, as sold | 11 ug/kg | 11 ppb | fsa2016-infant-food-formula-metals-survey | Soy-specific, but dry powder rather than ready-to-feed liquid. |
| Nickel | UK dry soy-based formula, as sold | 200 ug/kg | 200 ppb | fsa2016-infant-food-formula-metals-survey | Soy-specific, but dry powder rather than ready-to-feed liquid. |
Extracted Formula Concentration Rows
The FDA 2026 special survey has a very small ready-to-feed soy-based subset (n=3). The values below are retained for traceability, but this subset is too small to use directly as a stable threshold distribution. The full sample-level dataset is maintained in the staff Standards Workbench. fda2026-infant-formula-toxic-elements-special-survey
| Metal | N | Detected | <LOD | Basis | Highest value in this extraction | Citation |
|---|---|---|---|---|---|---|
| tAs | 3 | 3 | 0 | prepared for feeding; <LOD=0 lower-bound | 1.3 ug/kg | fda2026-infant-formula-toxic-elements-special-survey |
| Pb | 3 | 3 | 0 | prepared for feeding; <LOD=0 lower-bound | 0.4 ug/kg | fda2026-infant-formula-toxic-elements-special-survey |
| Cd | 3 | 3 | 0 | prepared for feeding; <LOD=0 lower-bound | 1.1 ug/kg | fda2026-infant-formula-toxic-elements-special-survey |
| tHg | 3 | 1 | 2 | prepared for feeding; <LOD=0 lower-bound | 0.08 ug/kg | fda2026-infant-formula-toxic-elements-special-survey |
The Canadian formula paper adds ready-to-use soy-based source-scope summary rows for Al, Cd, and Pb; it reports means, medians, and maxima.
| Source | Metal | N | Basis | Mean | Median | Maximum | Use note |
|---|---|---|---|---|---|---|---|
| dabeka2011-canada-infant-formula-lead-cadmium-aluminum | Al | 14 | as consumed | 730 | 769 | 1121 | Source reports summary statistics only. |
| dabeka2011-canada-infant-formula-lead-cadmium-aluminum | Cd | 14 | as consumed | 1.18 | 1.06 | 2.95 | Source reports summary statistics only. |
| dabeka2011-canada-infant-formula-lead-cadmium-aluminum | Pb | 14 | as consumed | 1.45 | 1.36 | 2.1 | Source reports summary statistics only. |
Row Relationship
This row is the contamination-platform counterpart to infant-formula-rtf-liquid-non-soy for the row architecture relationship covering Al, Ni, and Cd.
Why This Category Is High-Risk
A 2025 global scoping review of baby foods and infant formulas reported heavy-metal detections in 63% of evaluated infant-formula determinations; in its primary-protein-source subgrouping, Pb was detected in 84% of soy-based formula items and Cd in 91% of soy-based formula items. collado-lopez2025-heavy-metals-baby-food-formula
Ready-to-feed-specific risk characterization for Al and Ni remains pending.
What Drives Variance Across Brands
The promoted formula scoping review separates soy-based formulas from cow-based and nonspecified formulas, but it does not resolve powder-versus-ready-to-feed differences for this row. collado-lopez2025-heavy-metals-baby-food-formula
Potential variance drivers for soy-based ready-to-feed formula should be documented only after sources distinguish soy inputs, water inputs, processing equipment, packaging, and analytical method.
How The App Would Estimate Risk From An Ingredient List
The app model placeholder for this row should treat infant-formula-rtf-liquid, soy-based-infant-formula, and soy-protein-isolate as unresolved ingredient targets until source-backed contamination profiles exist.
Historical Recalls/Enforcement
See the page-level crosswalk above and regulatory-crosswalk-field-findings for current regulatory context; row-specific enforcement events remain pending.
No row-specific regulatory event has been added for this scaffold.
Broad Product Context: Author-Scope Index
The sources below are catalogued as product-context candidates for this row. The “Author-scope row-fit” column states what the authors actually resolved on each axis: matrix (cow milk-based, soy-based, rice-based, non-rice, or unresolved) and format (powder, ready-to-feed liquid, concentrated liquid, dry, or unresolved). A source counts toward this row’s evidence pool only once; rows marked “Cross-reference” already appear as direct evidence elsewhere on this page and are not counted again here.
| Source | Title | Source scope | Metals | Author-scope row-fit | Canonical appearance |
|---|---|---|---|---|---|
| amarh2023-ghana-infant-food-heavy-metals | Health risk assessment of some selected heavy metals in infan… | infant-foods; infant-formula | tAs; Cd; Cr; tHg; Mn; Ni; Pb; Sb | Matrix axis: unresolved (declares infant formula broadly). Format axis: unresolved (powder vs RTF not split). Source addresses infant formula broadly without splitting powder from RTF or soy from non-soy. | (context only) |
| chekri2019-french-infant-toddler-tds-trace-elements | Trace element contents in foods from the first French Total D… | infant-formula; baby-cereals; fruit-purees; fruit-juice-not-canned | Al; Sb; tAs; Cd; Cr; Co; Ni; Sn; V | Matrix axis: unresolved (declares infant formula broadly). Format axis: unresolved (powder vs RTF not split). Source addresses infant formula broadly without splitting powder from RTF or soy from non-soy. | (context only) |
| chung2021-china-infant-formula-toxic-elements | Content and Dietary Exposure Assessment of Toxic Elements in … | infant-formula | Cr; tAs; Cd; Pb | Matrix axis: unresolved (declares infant formula broadly). Format axis: unresolved (powder vs RTF not split). Source addresses infant formula broadly without splitting powder from RTF or soy from non-soy. | (context only) |
| collado-lopez2025-heavy-metals-baby-food-formula | Concentrations of Heavy Metals in Processed Baby Foods and In… | infant-formula; baby-cereals-dry-rice-based; baby-cereals-dry-non-rice; fruit-purees | Pb; Cd; tAs; tHg | Matrix axis: unresolved (declares infant formula broadly). Format axis: unresolved (powder vs RTF not split). Source addresses infant formula broadly without splitting powder from RTF or soy from non-soy. | Cross-reference - section: Why This Category Is High-Risk |
| efsa-cadmium-contam-2009 | Scientific Opinion of the Panel on Contaminants in the Food C… | chocolate; infant-formula; breast-milk | Cd | Matrix axis: unresolved (declares infant formula broadly). Format axis: unresolved (powder vs RTF not split). Source addresses infant formula broadly without splitting powder from RTF or soy from non-soy. | (context only) |
| fsa2016-infant-food-formula-metals-survey | Survey of metals in commercial infant foods, infant formula a… | infant-formula-powder; infant-formula-rtf-liquid; baby-cereals; fruit-purees | Al; Sb; tAs; iAs; Cd; Cr; Cu; I; Fe; Pb; Mn; tHg; Ni; Se; Sn; Zn | Matrix axis: unresolved (declares powder generally; soy/non-soy not split). Format axis: partial (covers multiple formats without splitting). Source addresses infant formula broadly without splitting powder from RTF or soy from non-soy. | Cross-reference - section: Measured Values And Concentration Evidence |
| gardener2019-lead-cadmium-infant-formula-baby-food | Lead and cadmium contamination in a large sample of United St… | infant-formula; baby-cereals; toddler-formula; fruit-juice | Pb; Cd | Matrix axis: unresolved (declares infant formula broadly). Format axis: unresolved (powder vs RTF not split). Source addresses infant formula broadly without splitting powder from RTF or soy from non-soy. | (context only) |
| jackson2012-arsenic-organic-foods-brown-rice-syrup | Arsenic, Organic Foods, and Brown Rice Syrup | infant-formula; toddler-formula; rice-containing-products | tAs; iAs | Matrix axis: unresolved (declares infant formula broadly). Format axis: unresolved (powder vs RTF not split). Source addresses infant formula broadly without splitting powder from RTF or soy from non-soy. | (context only) |
| marques2021-trace-elements-milks-plant-based-drinks | Essential and Non-essential Trace Elements in Milks and Plant… | plant-milks-soy-based; plant-milks-rice-based; plant-milks-non-soy-non-rice; infant-formula | Pb; tHg; Ni; U | Matrix axis: partial (covers both non-soy and soy without splitting). Format axis: unresolved (powder vs RTF not split). Source addresses infant formula broadly without splitting powder from RTF or soy from non-soy. | (context only) |
| spungen2024-fda-tds-infant-lead-cadmium | Infants’ and young children’s dietary exposures to lead and c… | processed-baby-food; infant-formula; root-vegetable-purees; teething-biscuits | Pb; Cd | Matrix axis: unresolved (declares infant formula broadly). Format axis: unresolved (powder vs RTF not split). Source addresses infant formula broadly without splitting powder from RTF or soy from non-soy. | Cross-reference - section: Sources |
| tatsuta2024-methylmercury-intake-children-duplicate-diet | Dietary intake of methylmercury by 0-5 years children using t… | fish-containing-baby-foods; infant-formula; baby-foods; toddler-meals | tHg; MeHg | Matrix axis: unresolved (declares infant formula broadly). Format axis: unresolved (powder vs RTF not split). Source addresses infant formula broadly without splitting powder from RTF or soy from non-soy. | (context only) |
Sources
Auto-generated from source-page frontmatter. The “Used on this page for” column is populated by the orchestrator’s POPULATE-SOURCE-LEGEND action; pending entries appear as *[awaiting synthesis]*.
| # | Citation | Year | Type | Used on this page for |
|---|---|---|---|---|
| 1 | FDA 2026. Analytical Results for Toxic Elements in Infant Formula, FY2023-FY2025 Special Survey, FDA analytical results table | 2026 | Government dataset | FDA special-survey tAs, Pb, Cd, and tHg concentrations for 312 infant formula samples on a prepared-for-feeding basis including a soy-based ready-to-feed subset (FY2023–FY2025) |
| 2 | Collado-Lopez et al. 2025. Concentrations of Heavy Metals in Processed Baby Foods and Infant Formulas Worldwide: A Scoping Review, Nutrition Reviews | 2025 | Peer-reviewed | Global scoping review (75 studies, 251 infant formulas) reporting Pb, Cd, As, and Hg detection rates; soy-based formula subgroup shows Pb detected in 84% and Cd in 91% of soy-based formula items |
| 3 | Thoerig et al. 2025. Assessment of arsenic, cadmium, lead, mercury, and per- and polyfluoroalkyl substances concentrations in human milk and infant formula in the United States: a systematic review, American Journal of Clinical Nutrition, Vol. 122, pp. 1006-1026 | 2025 | Peer-reviewed | U.S. systematic review synthesizing As, Cd, Pb, and Hg evidence across human milk and infant formula through 2024; canonical secondary synthesis source covering both milk-based and soy-based formula |
| 4 | Spungen et al. 2024. Infants’ and young children’s dietary exposures to lead and cadmium: FDA total diet study 2018-2020, Food Additives & Contaminants: Part A | 2024 | Peer-reviewed | FDA TDS 2018–2020 Pb and Cd dietary exposure estimates for infants 0–11 months; identifies “processed baby food and infant formula” as the dominant contributor to infant Pb exposure among non-breastfed infants |
| 5 | Tatsuta et al. 2024. Dietary intake of methylmercury by 0-5 years children using the duplicate diet method in Japan, Environmental Health and Preventive Medicine | 2024 | Peer-reviewed | Duplicate-diet tHg and MeHg in Japanese children 0–5 years; formula milk stage shows low tHg (median 0.020 ng/g); documents MeHg contribution of fish-based later diet stages, not formula |
| 6 | Amarh et al. 2023. Health risk assessment of some selected heavy metals in infant food sold in Wa, Ghana, Heliyon | 2023 | Peer-reviewed | Multi-metal ICP-MS survey (tAs, Cd, Cr, tHg, Mn, Ni, Pb, Sb) in 22 infant food and formula samples from Ghana; broad formula context without soy/non-soy or powder/RTF split |
| 7 | Chung et al. 2021. Content and Dietary Exposure Assessment of Toxic Elements in Infant Formulas from the Chinese Market, Foods 9(12):1839 | 2021 | Peer-reviewed | Cr, tAs, Cd, and Pb ICP-MS concentrations in 93 cow milk-based infant formulas by stage (Beijing, 2019–2020); broad cow-milk formula context without powder/RTF split |
| 8 | Marques et al. 2021. Essential and Non-essential Trace Elements in Milks and Plant-Based Drinks, Biological Trace Element Research | 2021 | Peer-reviewed | ICP-MS survey of Pb, tHg, Ni, and U in soy drink, cow milk, and follow-on formula composites from Spain; broad formula context including soy-based matrix, format not resolved |
| 9 | Paiva et al. 2020. Aluminium in infant foods: Total content, effect of in vitro digestion on bioaccessible fraction and preliminary exposure assessment, Journal of Food Composition and Analysis 90:103493 | 2020 | Peer-reviewed | Total Al by ICP-OES in Brazilian soy-based infant drink (2860 µg/kg) and fruit purees; also reports in-vitro bioaccessibility (0.5–48%) showing total Al overestimates bioavailable fraction; soy-based drink is the direct soy-formula context source |
| 10 | Chekri et al. 2019. Trace element contents in foods from the first French Total Diet Study on infants and toddlers, Journal of Food Composition and Analysis | 2019 | Peer-reviewed | French TDS upper-bound mean concentrations for Al, tAs, Cd, Cr, Ni, and Sn in 28 infant formulae and 34 follow-on formulae as consumed; powder/RTF and soy/non-soy not separated |
| 11 | Gardener et al. 2019. Lead and cadmium contamination in a large sample of United States infant formulas and baby foods, Science of the Total Environment | 2019 | Peer-reviewed | Pb and Cd ICP-MS concentrations in 91 U.S. infant formula products; broad formula context with full-sample percentile distributions but no powder/RTF or soy/non-soy split |
| 12 | Meyer et al. 2018. Inorganic arsenic in hydrolysed rice formulas for infants, Pediatric Allergy and Immunology | 2018 | Peer-reviewed | iAs by HPLC-ICP-MS in 5 hydrolysed rice formulas (EU): iAs range 10–34 µg/L as-prepared; context for rice-protein specialty formula as a high-iAs alternative to soy-based and milk-based formulas |
| 13 | FSA 2016. Survey of metals in commercial infant foods, infant formula and non-infant specific foods, UK Food Standards Agency report FS102048 | 2016 | Government report | Multi-metal UK survey in 47 infant formula samples; includes a distinct soy-based formula category row (Al 2550 µg/kg, tAs 7 µg/kg, iAs 4.6 µg/kg, Cd 11 µg/kg, Ni 200 µg/kg) distinguishing soy from milk-based formats |
| 14 | Jackson et al. 2012. Arsenic, Organic Foods, and Brown Rice Syrup, Environmental Health Perspectives | 2012 | Peer-reviewed | tAs and iAs in soy-based organic toddler formula containing brown rice syrup; reconstituted soy-based formula showed iAs approximately 1.5–2.5× the 10 µg/L drinking-water standard, establishing brown rice syrup as a high-arsenic ingredient in soy formula |
| 15 | Dabeka et al. 2011. Lead, cadmium and aluminum in Canadian infant formulae, oral electrolytes and glucose solutions, Food Additives & Contaminants: Part A | 2011 | Peer-reviewed | Pb, Cd, and Al in Canadian infant formula on an as-consumed basis by format and protein source; n=14 ready-to-use soy-based samples (Al mean 730 µg/kg, Cd mean 1.18 µg/kg, Pb mean 1.45 µg/kg) with means and maxima |
| 16 | EFSA 2009. Scientific Opinion of the Panel on Contaminants in the Food Chain on a request from the European Commission on cadmium in food, The EFSA Journal | 2009 | Government report | EFSA CONTAM Panel opinion establishing the EU Cd TWI of 2.5 µg/kg body weight per week; foundational regulatory basis for Cd limits including those applied to infant formula |
| 17 | Dabeka et al. 1987. Lead, cadmium, and fluoride levels in market milk and infant formulas in Canada, Journal of Association of Official Analytical Chemists 70(4):754-757 | 1987 | Study | Historical baseline Pb and Cd survey in Canadian infant formula by format and protein source; Cd evidence across soy-based formula subcategories; reflects lead-soldered-can era concentrations |