BPA Crosses the Placenta and Rewrites Your Baby's DNA
NonToxCo Research
Science & Safety Team · 4/7/2026
BPA doesn't just reach your baby in the womb. It changes how their genes work. And those changes can last for generations.
Bisphenols Cross the Placenta
A 2026 review in Arch Med Res examined how BPA and its replacement chemicals (BPF, BPS, BPB, BPAF) affect developing babies. All of them cross the placenta. Once inside, they act like hormones and bind to estrogen receptors.
The damage doesn't stop at hormone disruption. These chemicals alter the baby's epigenetic code, the system that controls which genes get turned on or off.
Four Types of Epigenetic Damage
Bisphenols cause DNA methylation changes, histone modifications, chromatin remodeling, and disruption of non-coding RNA regulation. All four systems control gene expression during development.
When these systems get disrupted in the womb or early postnatal life, the result is reproductive disorders that may not show up until puberty or adulthood.
The Replacements Aren't Safer
BPF, BPS, and other "BPA-free" alternatives show the same endocrine-disrupting activity. They cause the same types of epigenetic changes. Swapping one bisphenol for another didn't fix the problem.
Transgenerational Effects
The epigenetic changes can pass to the next generation. Exposure during pregnancy doesn't just affect the baby. It can affect the baby's future children too.
What Expecting Parents Can Do
Avoid canned foods, plastic food containers, and thermal receipt paper during pregnancy. Choose glass or stainless steel. And switch to non-toxic baby products before the baby arrives.
Also see glass food storage for safer alternatives.