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      BPA and Childhood Obesity

      We have a guest blogger, the newsletter Whole Health Insider, with the latest news on the link between the plastics chemical, BPA, and childhood obesity.

      Did you know that 92% of us have BPA in our urine? Here's more. By now, most of us have heard of bisphenol-A, otherwise known as BPA. This common chemical compound found in hard plastics and the linings of food and drink cans has been under a great deal of scrutiny over the past decade due to its link to several serious health problems.

      The list is quite extensive and alarming and includes erectile dysfunction1, cardiovascular disease and diabetes2, problems with brain function and memory3, breast cancer4, and asthma5.

      And as if this chemical could not get any more dangerous, new research published in the Journal of the American Medical Association suggests that long-term exposure to BPA in children can greatly increase the risk of one of the biggest epidemics we're facing as a nation—obesity.6

      It's no secret that children are particularly vulnerable to the effects of BPA. This is why the Food and Drug Administration recently banned its use in the production of plastic baby bottles and toddler sippy cups. But, even so, BPA exposure is nearly impossible to completely avoid. 92.6 percent of people ages six and over have detectable levels in their urine!7

      The Obesity Link

      In their study, researchers examined the link between body mass index and BPA concentrations in the urine of 2,838 children aged six to 19 years.

      They divided the results into four groups (quartiles). After taking into account various factors such as race, age, caloric intake, and television watching, researchers discovered that the first quartile—the children with the lowest urinary output of BPA—also had the lowest incidence of obesity (10.3 percent). Those in the second and third quartiles had a 20.1 percent and 19 percent rate of obesity, respectively. The fourth quartile, which included the children with the highest levels of BPA in their urine, had a 22.3 percent rate of obesity.

      To put this in perspective, the kids in the third quartile had twice the odds for obesity, and those in the fourth quartile had 2.6 times higher odds for obesity, as compared to the kids in the first quartile.

      After further analysis, researchers found this association to be most significant in white children and adolescents.

      Reducing Your Exposure to BPA

      Since BPA is so widespread, it's close to impossible to avoid it completely. It may have been banned in baby products, but it still exists in many other plastic products and the linings of canned goods and aluminum soda cans. Even so, there are a few steps you can take to limit your exposure to this harmful chemical8:

      • Choose BPA-free or non-plastic alternatives. When buying plastic products such as reusable water bottles and storage containers, make sure the product is labeled BPA-free. Or, better yet, opt for glass food storage containers, like the Pyrex brand, and stainless steel water bottles. (One caveat though—stainless steel water bottles sometimes contain plastic liners, so be sure the bottle you choose does not.)
      • Avoid #7 plastics. Polycarbonate plastics with the #7 recycling code often contain BPA. The recycling codes with the numbers 1, 2, and 4 are your safest options if you do use plastic products.
      • Don't heat plastic in the microwave. Doing so could cause chemicals to leach into foods or beverages. Place your food on a plate or in a ceramic or glass bowl before heating.
      • Avoid or limit your consumption of canned food and beverages. The BPA that lines these containers often leaches into the food. If you do eat canned food, you should rinse the contents, if possible, before eating it to lessen the amount of BPA you ingest. Probably most disturbing is that ready-to-feed liquid infant formula that gets housed in metal cans appears to have high concentrations of BPA.8 If you use infant formula, choose a powdered variety that comes in #1 or #2 plastic containers. If you do need to use liquid formula, find types sold in glass or #1/#2 plastic containers.


      1. Li D, et al. Hum Reprod. 2010 Feb;25(2):519-27.
      2. Lang IA, et al. JAMA. 2008 Sep 17;300(11):1303-10.
      3. Leranth C. Proc Natl Acad Sci USA. 2008 Sep 16;105(37):14187-91.
      4. Doherty LF, et al. Horm Cancer. 2010 June;1(3):146-55.
      5. Vaidya SV and Kulkarni H. J Asthma. 2012 Oct;49(8):800-6.
      6. Trasande L, et al. JAMA. 2012 Set 19;308(11):1113-21.
      7. https://media.jamanetwork.com/news-item/higher-levels-of-bpa-in-children-and-teens-associated-with-obesity/
      8. Environmental Working Group. https://www.ewg.org/bisphenol-a-info

      From the newsletter Whole Health Insider.

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