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Diet and nutrition

Maximize your muscle defense: Protein is key to protection

Diet is the best source of protein, but some people might benefit from protein supplements. Here's what you need to know.

  • Reviewed by Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing
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Assortment of foods high in protein overlaid on a chalk drawing of an arm flexing muscles.

It's not your imagination: gaining or just maintaining muscle mass becomes harder after middle age. In fact, skipping regular strength training can cost you 4 to 6 pounds of muscle per decade.

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About the Reviewer

photo of Howard E. LeWine, MD

Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing

Dr. Howard LeWine is a practicing internist at Brigham and Women’s Hospital in Boston, Chief Medical Editor at Harvard Health Publishing, and editor in chief of Harvard Men’s Health Watch. See Full Bio
View all posts by Howard E. LeWine, MD
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