Recently, a provocative series of NHLBI-funded research studies have provided some important new insights into the potential link between red meat consumption and the "clogging of the arteries" that characterizes atherosclerotic cardiovascular disease. According to Dr. Stanley Hazen and his colleagues, the main culprit may be tied to our gut—specifically, gut bacteria's metabolism of L-carnitine, a substance found in red meat and energy drinks. Dr. Hazen spoke with me in a candid, in-depth conversation about his recent contributions to science and what it may mean for the health of the nation and the future research opportunities that lie ahead.
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