One study conducted by Dr. Frederick Vom Saal from the University of Missouri suggests low levels of BPA are just as dangerous as high levels, but Dr. Miller says no one has been able to repeat Dr. Vom Saal's findings since the 1998 experiments.
But Winterton feels any exposure to BPA is still unhealthy. "Something taking the place of hormones is a wrong thing," she says, adding that rapid cell growth occurs in utero and during puberty, which are key times of vulnerability to endocrine-disrupting substances.
Reduce the risk
Reducing exposure to plastics is the best way to keep exposure to BPA and other plastics chemicals to a bare minimum. However, it is nearly impossible to avoid plastic altogether.
The easiest way to identify plastics containing BPA is to look for the recycling symbol #7 -- generally hard, durable plastic products you can see through. Examples include some Tupperware containers, Nalgene bottles, and some baby bottles. The newer the product the more stable and safe it is, but over time and especially after heating, the polymers break down and allow BPA and other chemicals to migrate into foods.
Winterton recommends using safer plastic products with recycling symbols (or "PETE" numbers) 1, 2, 4 and 5.
Commercial water bottles, for example, have a recycling symbol 1. Gladware is a 5. Although these are safer, the bottles are not designed for re-use nor should the Gladware be heated.
(Click here for a complete definition of plastic identification codes and related products from the American Plastics Council.)
The following are some easy tips to make your food as plastic-free as possible:
• Buy fresh or dried fruits and vegetables and store them in cloth or glass containers. Winterton says most health food stores have special cloth bags for saving salad greens.
• Bring a large glass to work and refill it with water instead of using a plastic Nalgene bottle.
• Eat less canned food from plastic-lined cans, soaking lentils or beans overnight. "I do it and it's really no effort -- you just have to remember," says Winterton.
• Wrap sandwiches in wax paper instead of plastic baggies.
• If you're transporting food in reusable containers, bring a dish to heat it up.
• Further reduce your use of canned goods by making your own sauces, preserves and jams. Follow these links to easy Canadian Living recipes for great food kept delicious in jars.
1. Fruit Chutneys
2. Starter Tomato Sauce
3. Cranberry Sauce
4. Baked Beans (add chopped tomatoes and a tablespoon of sugar instead of the canned tomato soup.)
5. Chicken Noodle Soup with Homemade Stock
Read more:
• Green Living Blog: Getting rid of plastic bags in the home
• Green Living Blog: Cut the plastic from your kitchen
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