The short answer
Bisphenol A (BPA) is a chemical used in some plastics and can coatings. California lists it under Prop 65 for reproductive toxicity. The FDA says it is safe at the levels now found in foods. You can choose to use less of it, and keep the risk in perspective.
BPA is used in polycarbonate plastics and the linings of some food and drink cans.
California's OEHHA lists BPA under Prop 65 for female reproductive toxicity.
The FDA says BPA is safe at the levels now found in foods. California lists it for a different reason.
If you want to use less BPA, you can pick BPA-free products and eat less canned food.
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The chemical behind a wave of store-shelf warnings
If you saw a warning about bisphenol A (BPA) in California, it may have come from Proposition 65.
BPA is an industrial chemical. The FDA says it is used in polycarbonate plastics (hard plastics used in some drink bottles) and in coatings that protect food from the metal of some cans. The FDA says small amounts may move into food during normal use.
Why it was listed
According to California's OEHHA, BPA is on the Prop 65 list for female reproductive toxicity. Note that this listing is about reproductive harm, not cancer. Prop 65 covers both categories.
Keeping the risk in perspective
BPA is a good case for the hazard-versus-risk mindset. The FDA says BPA is safe at the current levels found in foods. California lists it for reproductive toxicity. Agencies can look at the same chemical and answer different questions.
If you are worried, your care team can help you decide what matters for you.
Simple ways to reduce exposure
If you would like to use less BPA, these simple choices are an option. The FDA does not say they are needed.
- Choose BPA-free bottles, cups, and food containers.
- Eat more fresh or frozen food and less canned food.
Your care team may be able to suggest more if you have a specific concern.
The bottom line
BPA is used in some plastics and can linings. California's OEHHA lists it under Prop 65 for reproductive toxicity. The FDA says it is safe at the levels now found in foods. A calm, measured approach works best. Make a few easy swaps if you wish, and keep the risk in perspective against the big, proven factors that matter most.
Sources
Common questions
What is BPA?
Bisphenol A is an industrial chemical used to make polycarbonate plastics and epoxy resins, including the coatings of some food and beverage cans. The FDA says small amounts can move into food.
Why was BPA listed under Prop 65?
According to California's OEHHA, BPA is listed for female reproductive toxicity. Prop 65 can require warnings for listed chemicals.
How can I reduce BPA exposure?
If you wish, you can choose BPA-free bottles and containers and eat less canned food. The FDA says BPA is safe at the levels now found in foods.
How worried should I be?
The FDA says BPA is safe at the levels now found in foods. California's listing is for reproductive harm, not cancer. Your care team can help you weigh any worry.
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Last updated: 2026-10-16Next planned review: 2028-07-05
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Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes, and this is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Source checked — This page was written with AI assistance and then compared with the sources listed on it, looking for statements those sources do not back up. That check is not a sentence-by-sentence record and can miss errors. It is not a medical review, and it does not confirm the page is complete or right for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
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