Infant Formula, Concentrated Liquid (Soy-Based)
This bridge node exists for sources that report concentrated liquid soy-based formula, which is not one of the locked HMTc Category 1 rows but is part of the formula evidence graph.
Who this page is for
This page is written for brand legal and regulatory affairs teams, retailer quality and compliance readers, regulators, and adversarial readers who encounter concentrated liquid soy-based infant formula in evidence graphs or source citations. Concentrated liquid formula occupies a narrow market segment between powdered and ready-to-feed formats. Evidence for this format is thin; the sections below document what the cited sources actually report, the basis caveats, and the format relationship to the locked powdered and RTF rows. Every numeric claim traces to a source page in the Sources block.
Methodology
This page reports what the cited sources say about heavy-metal concentrations in soy-based concentrated liquid infant formula. The summary tables and inventories below are governed by a fixed set of methodology rules so the evidence is interpretable and auditable.
Speciation is treated as non-substitutable. Inorganic arsenic (iAs) and total arsenic (tAs) are reported separately; the toxicology and regulatory ceilings differ. Methylmercury (MeHg) and total mercury (tHg) are reported separately for the same reason. Total chromium (Cr) is not interpreted as hexavalent chromium (Cr-VI) unless the source explicitly speciates Cr-VI.
Basis is preserved and labeled, never silently converted. Concentrations in formula can be reported on at least three bases: powder as placed on the market, powder prepared for feeding (reconstituted with water at the manufacturer-specified dilution), or formula as consumed by an infant. Values on different bases are not directly comparable. Each table below labels the source basis explicitly. Where a basis conversion is provided, the conversion factor and assumptions are stated alongside the converted value, and the converted value is marked as indicative.
Non-detect handling. Where a source reports a value below its LOD or LOQ, this page preserves the source’s reported handling convention.
Source pooling is avoided. Aggregate statistics are not computed by pooling across sources with different LOQs, sampling periods, geographies, and analytical bases.
Row-fit. Sources are classified by how cleanly their reported scope matches this product row on two axes: matrix (cow milk-based vs soy-based vs hydrolyzed) and format (powder vs ready-to-feed vs concentrated liquid). Each axis is classified independently as exact, partial, or unknown.
Evidence tiers. A-tier: peer-reviewed primary studies and government reports. B-tier: NGO reports and trade publications. Synthesis leans on A-tier.
Confidence rating. Low: 1–2 sources. Medium: 3–10 sources. High: more than 10 sources.
HMT&C threshold-setting is separate. Certification thresholds are developed under the program at heavymetaltested.com, not on this page. See the methodology for the wiki/HMT&C separation.
Literature Evidence Summary
Generator-managed section: will be populated when source data is extracted and reviewed for this product row.
Source Evidence Inventory
Source evidence inventory pending structured extraction. Occurrence evidence appears in the FDA 2026 Prepared-For-Feeding Context section below.
Broad Product Context: Author-Scope Index
Generator-managed section: will be populated when the routing audit identifies sources with broader author-stated scope.
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); cadmium (Cd); arsenic-total (tAs); mercury-total (tHg) | No federal product-specific limit loaded in this crosswalk. | tAs: N=3, detected 0.6-0.7 ug/kg; Pb: N=3, detected 0.3-0.4 ug/kg; Cd: N=3, detected 1.3-1.5 ug/kg; tHg: N=3, detected 0.05-0.05 ug/kg. FDA formula occurrence evidence is present, but no matched formula action level is loaded here. | Occurrence evidence only. Do not infer a federal exceedance or HMTc pass/fail result from this row. | fda2026-infant-formula-product-testing-results |
Current Source Links
- dabeka2011-canada-infant-formula-lead-cadmium-aluminum — Canadian concentrated liquid soy-based formula summary: Al mean 706 ng/g and max 1047 ng/g, Cd mean 1.12 ng/g and max 1.70 ng/g, and Pb mean 1.19 ng/g and max 1.54 ng/g, all as consumed.
- fda2026-infant-formula-toxic-elements-special-survey — FDA FY2023-FY2025 concentrated liquid soy-based formula rows, expressed as prepared for feeding.
FDA 2026 Prepared-For-Feeding Context
The FDA 2026 special survey includes 3 concentrated liquid soy-based formula samples per analyte. These are retained as bridge context only; they are not assigned to powdered or ready-to-feed locked Category 1 rows.
| Metal | N | Detected | Basis | Highest value in this extraction | Use note |
|---|---|---|---|---|---|
| tAs | 3 | 3 | prepared for feeding | 0.7 ug/kg | Total arsenic. |
| Pb | 3 | 3 | prepared for feeding | 0.4 ug/kg | Bridge-context evidence only. |
| Cd | 3 | 3 | prepared for feeding | 1.5 ug/kg | Bridge-context evidence only. |
| tHg | 3 | 1 | prepared for feeding | 0.05 ug/kg | Total mercury; not MeHg. |
Row Mapping
Do not merge these rows into powdered formula or ready-to-feed formula without explicit basis normalization. Use as format-context evidence unless a future taxonomy adds concentrated liquid formula as a certification row.
Levers to reduce contamination
The concentrated liquid soy-based format shares the same upstream ingredient and processing levers as powdered and RTF formats. The Sn migration lever is more relevant for concentrated liquid in cans than for powdered formula, and the soy-specific Al and Ni levers are especially relevant for this format given the soy-formula Al elevation documented in the literature. Levers are ordered by approximate impact magnitude.
| # | Category | Specific lever | Magnitude | Source |
|---|---|---|---|---|
| 1 | Sourcing | Specify low-metal mineral premix and soy protein inputs. Vitamin-mineral premixes are a documented pathway for aluminum and other trace metal contamination in formula; premix supplier specification and batch testing are the primary control. | Premix origin and specification can drive substantial variation in Al and other metal concentrations; quantified magnitude data not yet ingested from cited sources for this specific lever at the formula level. | — |
| 2 | Sourcing | Specify soy protein concentrate or isolate from suppliers with documented low Cd, Al, and Ni in raw ingredient testing. Soy-based formulas consistently show higher Al and Ni relative to milk-based formulas (documented in cited sources). The Canadian concentrated liquid soy data shows mean Al of 706 ng/g vs 131 ng/g for non-soy concentrated liquid in Dabeka 2011. | dabeka2011-canada-infant-formula-lead-cadmium-aluminum | |
| 3 | Processing | Specify process water quality: water used for producing concentrated liquid carries its own metal burden, particularly Pb from older plumbing and Al from water treatment. | Quantified magnitude data not yet ingested from cited sources for water-source contribution to finished formula metal burden. | — |
| 4 | Processing | Equipment contact surface audit: stainless steel alloys and aluminium processing equipment can contribute Al to the product stream under certain cleaning conditions. | Quantified magnitude data not yet ingested from cited sources for equipment-contact contribution. | — |
| 5 | Formulation | Review the soy protein concentrate ingredient specification and consider lower-Al soy protein sources where the cited evidence shows systematic soy > non-soy Al elevation. | Quantified magnitude data not yet ingested for formulation-lever magnitude on the soy Al pathway for concentrated liquid specifically. | — |
| 6 | Testing and QC | Lot-level ICP-MS on incoming soy protein, mineral premix, and finished product. The FDA 2026 survey documents only N=3 concentrated liquid soy samples; this very small subset underscores the need for ongoing lot testing to characterize this format’s distribution. | fda2026-infant-formula-toxic-elements-special-survey | |
| 7 | Packaging and storage | Sn migration from non-lacquered cans is a direct concern for this liquid format. Specify lacquered or non-metallic can lining. The concentrated liquid format is more exposed to Sn migration than powdered formula due to direct liquid-metal contact over the product shelf life. | Sn migration is format-specific (liquid > powder); quantified magnitude data not yet ingested from cited sources for formula-specific Sn migration rates. | — |
Agronomic levers: not applicable to this product category as a direct lever. Agronomic interventions on soy crops live upstream on the relevant ingredient pages (see soy-protein-concentrate if that page exists).
Cross-links: infant-formula-concentrated-liquid-non-soy; infant-formula-powder-soy-based; infant-formula-rtf-liquid-soy-based; relevant mitigation pages where they exist.
How standards math uses this page
This page documents what the cited sources report. The row-standard percentile in the Heavy Metal Tested and Certified (HMT&C) staff workbench is derived from the aggregate across all contributing sources after basis adjustment and row-fit review — it is not a decoration on any individual source row, and it is not published on this public page.
Citing this page at a single source’s maximum value as if it were a threshold justification misreads the evidence architecture: the maximum observed in one study is not the same as a representative value across the full source pool. HMT&C certification threshold decisions are made separately under the certification program and are not published on this public page.
Historical recalls and enforcement
No row-specific regulatory recall or enforcement action has been added to this page. Future entries will be framed as regulatory events, not brand rankings (CLAUDE.md Part 12).
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 reporting tAs, Pb, Cd, and tHg in 312 infant formula samples (FY2023–FY2025); concentrated-liquid soy formula included as context (not in the locked row set), prepared-for-feeding basis |
| 2 | 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 | Canadian survey reporting Pb, Cd, and Al in soy-based concentrated liquid formula (n=12; Al mean 706 ng/g, Pb mean 1.19 ng/g, Cd mean 1.12 ng/g); direct as-consumed occurrence data for this format |
Page history
The five most recent substantive edits to this page. The full version history lives in git; when DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.
| Commit | Date | Description |
|---|---|---|
| b0f3d38 | 2026-06-12 | batch | corpus rescreen b04 old terminal skips |