Houlihan and Brody 2019 — HBBF: What’s in My Baby’s Food?
Healthy Babies Bright Futures (HBBF) commissioned Brooks Applied Labs (Bothell, Washington) to test 168 commercially purchased baby food containers for four toxic heavy metals — arsenic, lead, cadmium, and mercury — across 61 brands and 13 food types purchased from 14 US metropolitan areas. Testing found detectable levels of at least one metal in 95 percent of baby foods sampled, with one in four containers positive for all four metals simultaneously. The report also commissioned Abt Associates to estimate IQ loss attributable to lead and arsenic in the diets of children aged 0 to 24 months, finding a total population-level loss exceeding 11 million IQ points from dietary exposure, with rice-based foods alone accounting for nearly one-fifth of that total.
Note on evidence tier: This is a B-tier nonprofit report, not a peer-reviewed primary study. The laboratory results are from a single commercially accredited lab without published QC data in the main report body; they are presented without uncertainty estimates or statistical comparison across food types. The IQ-loss estimates are modeled by Abt Associates using federal dietary survey data rather than directly measured. Use with appropriate attribution.
Key numbers
Detection rates across 168 baby foods (tAs/total arsenic unless noted; all wet weight):
- Arsenic detected in 73% of baby foods (inorganic arsenic specifically measured in the 25 highest-arsenic foods)
- Lead detected in 94% of baby foods
- Cadmium detected in 75% of baby foods
- Mercury (tHg) detected in 32% of baby foods
- 95% had at least one metal detected; only 9 of 168 were free of all four metals
- 26% of containers had all four metals simultaneously
Detection by food type (selected categories):
- Puffs and other snacks (n=21): arsenic 19/21, lead 21/21, cadmium 19/21, mercury 14/21
- Teething biscuits and rice rusks (n=10): all four metals 10/10
- Infant rice cereal (n=7): all four metals detected in 7/7; inorganic arsenic exceeded FDA’s proposed 100 ppb guidance level in 4 of 7 cereals tested
- Non-rice infant cereals (n=11): arsenic 11/11, lead 10/11, cadmium 11/11, mercury 2/11
- Vegetables (n=38): arsenic 38/38, lead 34/38
Average total heavy metal concentrations (sum of iAs + Pb + Cd + Hg) for selected food types (ppb, wet weight), from HBBF analysis combining own tests with FDA Total Diet Study 2014-2017 data:
- Rice puff snacks: 98 ppb average
- Infant rice cereal: 85 ppb average
- Teething biscuits/rice rusks: 85 ppb average (approximate, from comparative figure)
- Carrot baby food: 28 ppb average
- Sweet potato baby food: 19 ppb average
- Non-rice infant cereals: 14 ppb average
- Rice-free baby snacks: 7.1 ppb average
- Other fruits and vegetables baby food: 7.4 ppb average
These averages represent the sum of four metals. Arsenic dominates the total for rice-based products; lead and cadmium dominate for root vegetables.
Inorganic arsenic (iAs) specifically: 25 of the 168 baby foods (those with highest total arsenic) were separately tested for iAs speciation. Four of seven infant rice cereals exceeded FDA’s proposed 100 ppb iAs action level.
IQ loss estimate (Abt Associates 2019b, commissioned model): Children aged 0 to 24 months collectively lose an estimated 11+ million IQ points from dietary exposure to arsenic and lead combined. Rice-based foods account for roughly 20% of that total. The 15 foods responsible for 55% of estimated total risk, ranked by share of total IQ harm, include: rice dishes with beans and vegetables (10.0%), whole milk (8.4%, due to high consumption volume rather than high metal concentration), white and brown rice (7.0%), apple juice (6.1%), infant formula (5.3%, driven by volume), 100% fruit juice blend (4.1%), infant rice cereal (2.7%), grape juice (2.0%), oat ring cereals (1.6%), sweet potato baby food (1.6%), soft cereal bars and oatmeal cookies (1.4%), macaroni and cheese (1.4%), puffs and teething biscuits (1.3%), bottled drinking water (1.2%, volume-driven), and fruit yogurt (1.2%). The primary driver is arsenic for most items; lead dominates for infant formula, grape juice, sweet potato, macaroni and cheese, puffs, and fruit yogurt.
83% of baby foods tested had more lead than the 1 ppb limit endorsed by EDF and other public health organizations. Of the 13 food types tested, 10 types had no FDA enforceable standard or guidance for any of the four metals.
Safer-choice substitution effect (HBBF analysis): Parents who substitute rice-free snacks for rice puff snacks reduce average total heavy metal exposure by 93%; substituting other infant cereals for infant rice cereal reduces exposure by 84%; substituting tap water for fruit juice reduces exposure by 68%.
Perchlorate (additional neurotoxin, separate test, n=25 foods): 19 of 25 foods positive; maximum levels ranged from 4.6 ppb (snacks) to 19.8 ppb (fruits and vegetables). All 19 perchlorate-positive foods also contained heavy metals; 12 had all four heavy metals.
Methods (brief)
Heavy metals testing: Brooks Applied Labs, Bothell WA. Analytical method not explicitly stated in main report body; Appendix C describes laboratory quality control. Total arsenic (tAs) measured in all 168 samples; inorganic arsenic (iAs) by speciation in the 25 highest-arsenic samples. Total mercury (tHg) measured, not speciated as MeHg. Method detection limits not reported in the main text; available in Appendix C. Results are wet weight, but the report does not systematically note wet vs. dry weight basis. The report pools HBBF test results with FDA Total Diet Study 2014-2017 data for some averages; these pooled averages are not separated by source in the main report text. Perchlorate testing performed by Southwest Research Institute, separate subsample.
LOD/LOQ: Appendix C contains lab-specific values; these were not extracted for this source page.
Key limitations: (1) Single-lab, single-timepoint, no replication or peer review of results. (2) IQ-loss estimates are modeled and rely on assumptions about consumption rates and dose-response relationships derived from external studies; the model does not account for MeHg or Cd contributions. (3) Concentration averages pool small sample sizes across heterogeneous food types; within-type variance is not reported in the main text. (4) No statistical significance testing across food categories.
Implications
Certification: This report documents category-level field contamination for 13 commercial baby food types and provides a ranked risk framework prioritizing rice-based foods, root vegetable purees, and teething products. The 4 of 7 infant rice cereals exceeding FDA’s proposed 100 ppb iAs level, and the universal detection of all four metals in puffs and teething biscuits, are direct inputs to HMT&C category-level risk framing. The 83% exceedance of the 1 ppb advocacy lead limit across all baby foods benchmarks current market performance and supports tight HMT&C lead criteria.
Courses: The 15-food IQ-loss ranking provides a usable pedagogical structure for baby food contamination risk. The substitution table (93%, 84%, 68%, and 73% reduction scenarios) translates directly to parent-facing guidance. The 4× greater IQ impact from arsenic vs. lead in the first two years of life (for dietary exposure) is a key teaching point.
App: Contamination averages by food type (rice puff snacks 98 ppb, infant rice cereal 85 ppb, carrot baby food 28 ppb, etc.) can seed contamination_profile estimates for product-level app logic, subject to the usual B-tier weighting. Because these are pooled total-metal averages combining HBBF and FDA TDS data, they are best used as order-of-magnitude orientation rather than as primary quantitative inputs; pair with A-tier per-analyte speciated values where available.
Microbiome: Not addressed in this source.