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Bisphenol A (BPA) is a chemical used in the production of some plastics, the U.S. National Institute of Environmental Health Sciences says.
It also may be found in food and drink packaging, and as lacquers to coat metal products, such as food cans, bottle tops and water supply pipes.
Some studies have linked BPA to fertility and heart problems. The agency suggests how to reduce potential exposure:
- Don’t microwave polycarbonate plastic food containers. Polycarbonate is strong and durable, but over time it may break down from overuse at high temperatures.
- Some plastics that are marked with recycle codes 3 or 7 may be made with BPA.
- When possible, use glass, porcelain or stainless steel containers, particularly for hot food or liquids.
- Use baby bottles that are labeled BPA free.