Do the microplastics mom eats cross into the baby during pregnancy?

What's actually in it

Your body is not a closed system. When you eat or drink from plastic, you aren't just consuming food. You are often consuming bisphenols (chemicals used to harden plastic) and PFAS (often called forever chemicals). These substances don't just stay in your stomach. They enter your bloodstream.

Once in your blood, these pollutants can travel throughout your body. A 2026 study in Environ Int confirms that mixtures of these environmental pollutants are present during early pregnancy and are linked to changes in how your body processes amino acids and fatty acids.

What the research says

A 2026 study in Environ Pollut found that bisphenol exposure during pregnancy is linked to changes in serum total bile acid levels across all three trimesters. This shows that these chemicals are active in your system while the baby is growing.

The impact of these chemicals is significant. A 2026 study in Environ Sci Technol provides evidence that PFAS exposure disrupts thyroid hormones during pregnancy. Because thyroid hormones are critical for fetal development, this interference is a major concern.

Additionally, a 2026 study in Int J Hyg Environ Health tracked PFAS concentrations in pregnant women, confirming that these substances remain at measurable levels in the blood. Another 2026 study in Biol Trace Elem Res highlights that exposure to heavy metals like chromium during pregnancy can even affect fetal growth in a sex-dependent way. The science is clear: what you take in, your baby is exposed to.