Heart Health

Is niacin safe for the heart?

Ask the doctor

By , Editor in Chief, Harvard Heart Letter; Editorial Advisory Board Member, Harvard Health Publishing

illustration of yellow spheres in a cluster with B3 written on the largest one, in the center

Q. I've been taking a product called Niagen (nicotinamide riboside) as an anti-aging supplement. But I recently read that niacin may increase the risk of heart disease. Could that be a concern with Niagen as well?

A. Niacin, also known as vitamin B3, is a water-soluble vitamin that helps your body convert food into energy. Niacin is the generic name for nicotinic acid and nicotinamide (also called niacinamide) and related derivatives such as nicotinamide riboside, the product you take.

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About the Author

photo of Christopher P. Cannon, MD

Christopher P. Cannon, MD, Editor in Chief, Harvard Heart Letter; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Christopher P. Cannon is editor in chief of the Harvard Heart Letter. He is a professor of medicine at Harvard Medical School, and senior physician in the Preventive Cardiology section of the Cardiovascular Division at … See Full Bio
View all posts by Christopher P. Cannon, MD

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