A new California law forced baby-food brands to test every lot for lead, cadmium, arsenic and mercury.
They tried to make it hard to see the data. I unlocked it for everyone to see.
I turned 18,124 test results into a 60-second quiz to teach you not just what brands did best and worst, but what ingredients to love, and what ones to stay away from.
Ranked by share of lots that exceeded at least one action level under AB 899 (lead, cadmium, arsenic, mercury). Only brands with ≥ 100 lots in the dataset qualify.
Cleanest 10
lowest failure rate, 100+ lots
01
Once Upon a Farm
318 lots · worst: cadmium
2.1%fail
02
Cerebelly
142 lots · worst: lead
2.8%fail
03
Serenity Kids
196 lots · worst: lead
3.1%fail
04
Little Spoon
288 lots · worst: cadmium
3.5%fail
05
Amara
164 lots · worst: lead
4.2%fail
06
Yumi
224 lots · worst: cadmium
4.8%fail
07
Tiny Organics
178 lots · worst: lead
5.6%fail
08
Square Baby
122 lots · worst: arsenic
6.4%fail
09
Happy Family Organics
1,104 lots · worst: lead
7.8%fail
10
Sprout Organics
616 lots · worst: cadmium
9.1%fail
Includes direct-to-consumer and organic-leaning brands. “Worst” = the metal with the highest share of failed lots.
Worst 10
highest failure rate, 100+ lots
01
Earth’s Best Organic
1,842 lots · worst: lead
24.6%fail
02
Beech-Nut
1,504 lots · worst: lead
22.3%fail
03
Plum Organics
1,018 lots · worst: cadmium
20.9%fail
04
Gerber
2,612 lots · worst: lead
18.7%fail
05
Parent’s Choice (Walmart)
482 lots · worst: arsenic
17.2%fail
06
HappyBaby (rice lines)
310 lots · worst: arsenic
16.1%fail
07
Nurture Life
248 lots · worst: cadmium
14.8%fail
08
Nestlé / Cerelac
414 lots · worst: arsenic
14.1%fail
09
Bobo’s Oat Bars (kids)
148 lots · worst: cadmium
13.6%fail
10
Enfamil (reconstituted)
332 lots · worst: lead
12.8%fail
Rice-based products, teething biscuits, and leafy-green purees carry the highest per-category failure rates.
Eight questions, brand, frequency, age, product mix, and we calculate an estimated daily heavy-metal exposure (µg/day) for your specific feeding pattern. Then we recommend three concrete swaps and email the full breakdown.
ingredient-level breakdown
What's actually in the food, by metal.
Brands aren't the right unit of analysis. Ingredients are. A rice-based puff and an oat-based puff from the same brand tell completely different stories. Below, the full 18,124-lot dataset broken out for each of the four regulated metals, click a metal to expand.
Sorted by fail rate (share of lots that exceeded that metal's AB-899 action level). "Peak ppb" = the single worst test value across all lots.
🟥 Lead (Pb), 15 ingredients
Lead accumulates from soil residue (leaded gasoline era, historic paint, industrial fallout). Root vegetables, tubers, and dried ingredients concentrate it more than fresh fruits.
Ingredient
Lots
Fail rate
Peak ppb
Worst lot
Sunflower Seed 1 brand
8
75.0%
13.0 ppb
sprout_organics Smash Bar Made with Banana, Plant-Based Protein, a
What to do: Rotate ingredients. Avoid monotonous cinnamon / cassava / sweet-potato diets. Prefer fresh whole food over processed purees where you know the supply chain.
🟧 Arsenic (As), 15 ingredients
Inorganic arsenic comes from irrigation water and paddy cultivation. Rice is the dominant source, rice plants are exceptionally good at pulling arsenic out of flooded groundwater.
Ingredient
Lots
Fail rate
Peak ppb
Worst lot
Rusk Rice Cake 1 brand
76
100%
98.7 ppb
aldi_little_journey Little Journey® Rice Rusks Apple
What to do: Diversify grains. Swap plain rice cereal for oatmeal, quinoa, or barley. If you use rice, vary the brand AND the origin.
🟨 Cadmium (Cd), 8 ingredients
Cadmium is taken up by leafy greens, seeds, and cocoa (most naturally cadmium-accumulating plant category). Fertilizer application of phosphates also pushes soil Cd up over decades.
Ingredient
Lots
Fail rate
Peak ppb
Worst lot
Sunflower Seed 1 brand
8
75.0%
79.0 ppb
sprout_organics Smash Bar Made with Banana, Plant-Based Protein, a
Bar 8 brands
312
1.9%
79.0 ppb
sprout_organics Smash Bar Made with Banana, Plant-Based Protein, a
What to do: Cadmium deserves more attention than lead in food, detected in 61% of FDA TDS samples vs 15% for lead. See the realist’s guide to cadmium in food.
⬛ Mercury (Hg), 2 ingredients
Methylmercury bioaccumulates in predator fish (tuna, swordfish, king mackerel) and is rare in land-grown crops. When it shows up in baby food, it’s traced to fish-containing formulas or cross-contamination at shared facilities.
Ingredient
Lots
Fail rate
Peak ppb
Worst lot
Mango 17 brands
1322
0.1%
17.8 ppb
amara Mango Carrot
Carrot 20 brands
1405
0.1%
17.8 ppb
amara Mango Carrot
What to do: Avoid high-mercury fish for children under 2. Mercury guide.
Source: AB 899 lot-level data across 32 brands, September 2024 , April 2026. Full methodology, brand-level breakdown, and format cross-cuts: the long study.
your food isn’t the only variable
Let’s check your house too.
Given what you told us, your baby’s total lead exposure is probably bigger than food alone. Two more quick paths, then come back to food with confidence.
Five ingredient categories drive most failures. Rice, sweet potato, carrot, leafy greens, and oat-based products top the list. These ingredients absorb metals through soil, not processing.
Rice-based products, teething biscuits, and leafy-green purees have the highest per-category failure rates. If your baby eats these daily, the cumulative dose adds up fast.
The cleanest categories are fruit purees, legume-based foods, and fresh-only blends. Brands that center fresh ingredients and skip grain-heavy formulations tend to have the lowest failure rates.
The 60-second diet audit estimates your baby’s daily heavy-metal exposure. Answer 8 questions about brand, frequency, and age, and get a dose estimate compared to the FDA Interim Reference Level.
You can reduce exposure without switching every product. Rotating out the highest-risk ingredients a few times per week cuts cumulative dose significantly for most feeding patterns.
I was testing everything around the house like plates cups clothes etc, and most things were negative (yay!) But then i tested a pair of old boots and they came up positive!the pleather on the boots were flaking off too! My family would still be getting that exposure if i didnt have this kit, thank you!!
I am so glad I bought the Fluoro-Spec Test Kit! I've been worried about some of the dishes (especially mugs) my family regularly uses. I was able to reassure myself that most of the mugs were fine (one I did have to throw out due to testing positive for lead). And nearly all of our plates and bowls tested safe. I am thankful I have this to help make good, educated decisions about what items we use.