Large Study Links Daily Multivitamin Use to Increased Mortality Risk

While nearly one in three Americans takes a daily multivitamin, a large study challenges the belief that these supplements improve health or promote longevity.

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Rather than extending lifespan, daily multivitamin use is linked to a 4 percent higher risk of death, according to a large study of healthy U.S. adults conducted by the National Cancer Institute.

The 2024 study challenges the common belief that multivitamins improve health and longevity, even as nearly one in three U.S. adults takes them with those hopes in mind.

About the Study

Led by Dr. Erikka Loftfield, the study published in JAMA Network Open, sheds light on the effects of multivitamin (MV) use on longevity and questions the benefits of these popular supplements.