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Vol. 54, No. 4, April 2008, pp.515 - 516 Copyright © 2008 by The College of Family Physicians of Canada
Lead exposure during breastfeedingJacquelyn Choi, Toshihiro Tanaka, MD, Gideon Koren, MD FRCPC and Shinya Ito, MD FRCPCQUESTION Owing to the recent concerns of lead (Pb) leaking into tap water, one of our female patients is concerned about the effects of Pb exposure to newborns while breastfeeding. How should I advise her and should she switch to formula feeding? ANSWER Lead exposure through drinking tap water while breastfeeding is not associated with any serious concerns in most available studies. There is currently no safe level of Pb exposure, but environmental exposure within Canada is low. At present, Pb levels in drinking water are carefully monitored by Health Canada and are not likely to be of concern to breastfeeding mothers. Switching to formula feeding is not necessary and not recommended, as improperly prepared formula can have higher Pb levels.
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