Do processed baby foods and infant formulas contain heavy metals?

What's actually in it

Processed baby foods include jarred purees, pouches, puffs, teething biscuits, and infant cereals. Infant formulas are powder or liquid milk replacements. All of these can contain trace amounts of arsenic, lead, cadmium, and mercury. The metals come from contaminated soil, water used in farming, and processing equipment. Rice-based products tend to have the highest arsenic levels because rice plants are especially good at absorbing arsenic from flooded paddies.

What the research says

A 2026 scoping review in Nutr Rev gathered data from studies across the globe to map out heavy metal contamination in commercial baby foods and infant formulas. The review covered products from North America, Europe, Asia, Africa, and South America.

The findings weren't reassuring. Every region had baby food products with detectable levels of at least one heavy metal. Lead and cadmium showed up most often. Some products exceeded the safety limits set by the WHO or local regulators.

Rice-based infant cereals were the worst offenders for arsenic. Root vegetable purees (like sweet potato and carrot) had the highest cadmium levels. Even organic products weren't free of contamination, since the metals come from the soil, not from pesticides.

Babies are far more vulnerable to heavy metals than adults. Their brains are developing rapidly, they eat more food per pound of body weight, and their bodies are less efficient at clearing toxins. What looks like a tiny amount of lead in a jar of baby food can add up to a real problem when a baby eats it three times a day for months.