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FDA Commissioner Hamburg to Step Down After Six Years

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Margaret Hamburg will step down as the head of the U.S. Food and Drug Administration after six years of leading efforts to streamline the regulator’s approval process and make consumers’ eating habits healthier.

Stephen Ostroff, the FDA’s chief scientist, will be acting commissioner when Hamburg leaves, she said in an e-mail to staff. Hamburg, a 59-year-old Harvard Medical School graduate, had been the senior scientist at the Nuclear Threat Initiative before joining the FDA.