Can BPA from plastic food containers affect thyroid cells?
BPA can migrate from some plastic containers into food. A 2026 thyroid-cell study found BPA caused DNA damage and cell-specific toxicity, so glass storage is a practical swap.
What we know
A 2025 Journal of Xenobiotics review found that compounds can migrate from plastic containers into food. BPA was one of the endocrine disruptors named in the review.
A 2026 Journal of Applied Toxicology study tested BPA in thyroid cell lines for 24 and 48 hours. The researchers found DNA damage and cell-specific toxicity, including effects in normal thyroid follicular cells at the regulatory migration-limit dose used in the study.
What this means for your family
This does not prove that plastic food containers cause thyroid disease. It does show that BPA can affect thyroid cells in a lab setting, and BPA food contact is worth reducing where the swap is simple.
For parents, the lowest-stress move is changing the containers used every day.
Simple safer steps
Choose glass for leftovers and meal prep. Do not put hot food in plastic containers. Use stainless steel or glass when packing snacks.