Can babies absorb PFOA from formula and breast milk in their first year of life?

What's actually in it

PFOA (perfluorooctanoic acid) is a forever chemical that accumulates in blood and breast tissue. When a nursing mother has PFOA in her body, it transfers directly into her breast milk. Formula-fed babies aren't completely safe either: if tap water used to mix formula is contaminated with PFAS, the baby gets a dose with every bottle.

An infant's tiny body and immature liver can't process or eliminate these chemicals effectively, so they build up quickly.

What the research says

A 2026 systematic review in Environ Int compiled data on early-life dietary PFOA exposure through milk. The review confirmed that breast milk is the single largest source of PFOA for breastfed infants.

Breastfed babies received PFOA doses that in some studies exceeded tolerable daily intake levels set by the European Food Safety Authority. The transfer is efficient: PFOA binds to proteins in breast milk and delivers it directly to the infant's gut, where it's readily absorbed.

For formula-fed babies, exposure depended heavily on local water quality. In areas with PFAS-contaminated water, formula preparation created a meaningful exposure route. Powdered formula mixed with contaminated tap water delivered more PFAS than ready-to-feed liquid formula.

The review still concluded that breastfeeding benefits outweigh the PFOA risk for most mothers. But reducing maternal PFAS exposure before and during pregnancy matters. Use a water filter rated for PFAS, avoid nonstick cookware, and skip grease-proof food packaging. For formula, consider using filtered water or ready-to-feed options.