Staying Healthy

Are you taking too many supplements?

By , Executive Editor, Harvard Health Letter

It’s a strategy that may backfire and wind up defeating your intent to boost health.

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Exercising, eating right, managing stress, and sleeping well: they’re the mainstays of a healthy lifestyle. Taking lots of dietary supplements should not be added to the list; there’s little scientific evidence to support it. Yet many Americans make excessive supplement intake a key component of their health regimens.

In national health surveys conducted in 2017–2018, 25% of people age 60 or older reported using four or more supplements. That’s on the lower end of the spectrum for some people. "I see patients taking seven to 20 supplements a day. They are reluctant to give them up because they believe supplements are as effective as prescription medication," says Joanne Doyle Petrongolo, a pharmacist at Harvard-affiliated ­Massachusetts General Hospital.

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About the Author

photo of Heidi Godman

Heidi Godman, Executive Editor, Harvard Health Letter

Heidi Godman is the executive editor of the Harvard Health Letter. Before coming to the Health Letter, she was an award-winning television news anchor and medical reporter for 25 years. Heidi was named a journalism fellow … See Full Bio
View all posts by Heidi Godman

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