A recent Centers for Disease Control and Prevention (CDC) study reported bisphenol A (BPA) in a high percentage of people; is this a concern?
No — The BPA levels reported are extremely small and are significantly below all safety limits established by FDA, EPA, and other regulatory authorities globally. The CDC recently completed a biomonitoring study that included BPA. Biomonitoring is the analysis of body fluids or tissues for the presence of a substance. 12 For BPA, urine is a good measure of oral exposure and is the preferred biological sample for direct measurement of BPA in humans for two primary reasons: • Validated and reliable analytical methods exist to measure BPA in urine; 13,14 and • Samples are easily obtained. BPA is efficiently and rapidly metabolized to a non-estrogenic metabolite (BPA-glucuronide) after oral exposure, which is then rapidly excreted from the body through urination, and scientific studies have shown that BPA does not bioaccumulate. 15 Several biomonitoring studies which included BPA have been recently published. 16,17,18 The results of these studies show that BPA exposure is over 500 times b
