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Is your water bottle affecting your thyroid?

Posted on 12th November 2018


All humans are now exposed to synthetic pollutants in their food, drinking water and in the air, as well as in the ordinary things they use in everyday life. Antibodies against these xenobiotics (aka external hormone disruptors) have been demonstrated in a number of studies. It’s not exactly a secret that many plastic products have an additive called “bisphenol A,” or “BPA,” for short. BPA is found in many common plastics, such as beverage and water bottles and many food containers.

Bisphenol A (BPA is an endocrine disruptor that has been implicated in a number of disorders, directly and indirectly affecting autoimmunity. BPA exposure is a serious consideration for those with thyroid and neurological autoimmunity. A new study shows an association between bisphenol-A (BPA) and thyroid autoimmunity. In the study, serum BPA was found to be associated with certain aspects of thyroid autoimmunity, in that there was a relationship between serum BPA and TPOAb or TgAb but not TRAb.

People with these autoimmune diseases should avoid BPA as much as possible. You can do so by taking these steps;

  • Use BPA-free products.Manufacturers are creating more and more BPA-free products. Look for products labelled as BPA-free. If a product isn’t labelled, keep in mind that some, but not all, plastics marked with recycle codes 3 or 7 may be made with BPA.
  • Cut back on cans.Reduce your use of canned foods since most cans are lined with BPA-containing resin.
  • Avoid heat.The National Institute of Environmental Health Sciences, part of the National Institutes of Health, advises against microwaving polycarbonate plastics or putting them in the dishwasher, because the plastic may break down over time and allow BPA to leach into foods.
  • Use alternatives such as glass, porcelain or stainless steel containers for hot foods and liquids instead of plastic containers.


Chailurkit, L.O., Aekplakorn, W., Ongphiphadhanakul, B., 2016. The association of serum bisphenol A with thyroid autoimmunity. International Journal of Environmental Research and Public Health 13