Heart Health

What are the risks from taking statins?

Ask the doctor

By , Editor in Chief, Harvard Heart Letter; Editorial Advisory Board Member, Harvard Health Publishing
A woman holds a pill near her mouth and holds a glass of water in her other hand, ready to swallow it.I'm listening to a book about a diet to reverse heart disease, and the physician author says there are "documented dangers" from statins. Just how risky are these drugs?

Because statins have been on the market for so long, the side effects are well known. About 10% of people develop muscle aches, which disappear when they stop taking the drug. Depending on the dose, statins also increase the risk of developing diabetes by 10% to 35%, possibly by preventing your body's insulin from working well, which causes blood sugar to rise. This side effect is most common in people with obesity and prediabetes, who are already prone to developing diabetes. Regardless, the cardiovascular benefit of a statin for these high-risk patients outweighs the risk of diabetes.

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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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