An analysis of 150 studies by Department of Energy toxicologist Justin Teeguarden found that the amount of bisphenol A used in plastic bottles and food containers is too little to account for negative effects on humans. "At these exposure levels, exposure to BPA can't be compared to giving a baby the massive dose of estrogens found in a birth control pill, a comparison made by others," Teeguarden said. "The term low-dose cannot be understood to mean either relevant to human exposures or in the range of human exposures," he added.

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