Wednesday, February 03, 2010

Bisphenol A


Bisphenol A (BPA) is a chemical produced in large quantities for use primarily in the production of polycarbonate plastics and epoxy resins.

The primary source of exposure to BPA for most people is through the diet. While air, dust, and water are other possible sources of exposure, BPA in food and beverages accounts for the majority of daily human exposure.

Bisphenol A can leach into food from the protective internal epoxy resin coatings of canned foods and from consumer products such as polycarbonate tableware, food storage containers, water bottles, and baby bottles. The degree to which BPA leaches from polycarbonate bottles into liquid may depend more on the temperature of the liquid or bottle, than the age of the container. BPA can also be found in breast milk.

A study published in December 2009 in Toxicology and Applied Pharmacology, from the Laboratory of Research in Reproductive and Gestational Health, Quebec, Canada, suggests that exposure of placental cells to low doses of BPA may cause detrimental effects, leading in vivo to adverse pregnancy outcomes such as preeclampsia, intrauterine growth restriction, prematurity and pregnancy loss.


Parents and caregivers, can make the personal choice to reduce exposures of themselves, their infants and children to BPA:

  • Don’t microwave polycarbonate plastic food containers. Polycarbonate is strong and durable, but over time it may break down from over use at high temperatures.

  • Polycarbonate containers that contain BPA usually have a #7 on the bottom

  • Reduce your use of canned foods.

  • When possible, opt for glass, porcelain or stainless steel containers, particularly for hot food or liquids.

  • Use baby bottles that are BPA free.

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