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Water bottles

You’ve probably heard that many hard, reusable plastic water bottles could be bad for you because they may contain BPA, or bisphenol A, another endocrine disruptor according to the National Institute of Environmental Health Sciences.

"For adults, the biggest concern with BPA is that it may increase the risk of breast cancer in women and reduce sperm counts in men," says Dr. Carpenter, who explains that BPA can leach out into the water in the bottle. To be safe, sip from an unlined stainless steel or BPA-free plastic bottle.

Next: Food-storage containers