Dr. Robert Califf, commissioner of the U.S. Food & Drug Administration, discusses the promising research behind a new class of diabetes and obesity drugs that could improve tens of millions of lives in America impacted by the obesity epidemic.

He addresses the FDA's pending new tobacco control rules, as well as improvements to the infant formula pipeline in the wake of recent shortages. Dr. Califf also voices deep concerns that health misinformation is the 'leading cause of death in America now.'

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