Yaron Tomer, MD, FACP, is Director of the Metabolism Institute, Professor of Medicine and Chief of the Hilda & J. Lester Gabrilove Division of Endocrinology, Diabetes and Bone Disease. Read More

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today show spotlightAfter he enrolled in Mount Sinai's medically supervised Weight Management Program, Robert Branch lost 120-pounds and ran the New York City Marathon. View Now