"It is important to note that the study has little relevance to average consumers who use products that contain trace levels of BPA," said Hentges.
Dr. Hugh Taylor, director of the division of reproductive endocrinology and infertility at Yale University School of Medicine, said the findings are "very suggestive" but do not prove cause and effect.
"The results of the study are probably important for people who are working at BPA factories, but the results don't support condemning BPA based on what people are exposed to at normal levels," Taylor said.
Yet Taylor recommends that pregnant women and children in particular avoid BPA. Well-controlled animal studies have shown the chemical is linked to reproductive harm that may be irreversible during critical stages of development. In response to such concerns, some countries have banned the sale of baby bottles made with BPA.
"The totality of the literature suggests BPA has terrible consequences for human health," Taylor said. "I tell my patients to stay away from hard plastics and canned goods while pregnant."
There's more on bisphenol A at the U.S. National Institute of Environmental Health Sciences.
SOURCES: De-Kun Li, M.D., Ph.D., reproductive and perinatal epidemiologist, division of research, Kaiser Permanente, Oakland, Calif.; Hugh Taylor, M.D., professor and director, division of reproductive endocrinology and infertility, Yale University School of Medicine, New Haven, Conn.; Steven Hentges, Ph.D., executive director, Polycarbonate/BPA Global Group, American Chemistry Council, Arlington, Va.; Nov. 11, 2009, Human Reproduction
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