BisPhenol-A...Again: It Stays Longer In Your Body Than Experts Once Thought
Figure 2: Adjusted urine BPA level vs. fasting time. Image credit:eponline.org, from work by Richard W. Stahlhut, Wade V. Welshons, and Shanna H. Swan
A research paper recently published in the peer-reviewed journal Environmental Health Perspectives points out that, traditionally, it was believed by experts, that human bisphenol-A exposure was almost exclusively from food. That belief had interesting implications for those choosing which type of water bottle to purchase, for example. The food-as-main-exposure notion is now being challenged. The authors of Bisphenol A Data in NHANES Suggest Longer Than Expected Half-Life, Substantial Non-Food Exposure, or Both report that:
Overall, BPA levels [in urine] did not decline rapidly with fasting time in this sample. This suggests substantial non-food exposure, accumulation in body tissues such as fat, or both.The slope of the Figure 2, taken from the full paper, and presented above, represents this observation.
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