Can BPA stress placenta-forming cells?
A 2026 cell study found BPA caused ER stress, apoptosis, and impaired function in BeWo trophoblast cells. It does not prove that one food container causes pregnancy harm.
Short answer
A 2026 lab study found that BPA stressed BeWo trophoblast cells. Trophoblast cells help form the placenta. This is a cell study, not a human pregnancy study.
What the study found
The 2026 Reproductive Toxicology study exposed BeWo trophoblast cells to BPA. The researchers reported endoplasmic reticulum stress, programmed cell death, and impaired cell function after exposure.
That finding matters because trophoblast cells are important for placental formation. It still does not prove that long-term exposure from one plastic food container causes pregnancy harm.
What you can do
The same paper notes that BPA exposure can come from polycarbonate plastics, epoxy resins, food-contact materials, thermal paper, and the environment. A 2019 Advances in Nutrition review found food processing and packaging are major exposure routes for phthalates and bisphenols in pregnancy.
Use glass storage for leftovers. Avoid heating food in plastic. Choose fewer canned foods when that is easy. These steps lower one food-contact route without overstating what the cell study proves.
The research at a glance
What to use instead
Use glass storage for leftovers and avoid heating food in plastic, especially during pregnancy.
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