The Study
Recent evidence suggests that multivitamin use may delay cognitive aging and decrease risk of age-related dementia. The COSMOS randomized controlled trial conducted by Harvard Medical School put this hypothesis to the test.
In this study, 5,203 subjects over the age of 60 took a daily multivitamin for 2 years and took a battery of memory tests. Compared to the placebo group, the subjects taking a multivitamin had a statistically significant improvement in global cognition and episodic memory. The researchers estimated that taking the multivitamin was equivalent to reducing cognitive aging by 2 years.
American Journal of Clinical Nutrition 2024; 119:692-701
Take Home Message
The evidence is beginning to mount that taking a multivitamin has a positive impact on cognitive aging. Considering that they are inexpensive and have no negative side effects, it is not a bad idea to consider taking a multivitamin if you are older than 60.
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