Simple & Easy: Daily Multivitamin May Improve Cognition and Protect Against Mental Decline

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Taking a daily vitamin and mineral supplement may improve cognition in older adults, according to new research.

Could taking a daily multivitamin supplement help maintain cognitive health with aging and possibly prevent cognitive decline? According to new research, it might. A new study found that taking a daily supplement may improve cognition in older adults, but additional studies are needed to confirm these findings before any health recommendations are made. The study also showed that daily use of a cocoa extract supplement does not benefit cognition.

The findings by researchers from Wake Forest University School of Medicine, conducted in collaboration with Brigham and Women’s Hospital in Boston were published on September 14 in

Laura Baker Wake Forest University School of Medicine

Laura D. Baker, Ph.D., professor of gerontology and geriatric medicine at Wake Forest University School of Medicine, led the COSMOS-Mind trial, which shows taking a daily supplement may improve cognition in older adults. Credit: Wake Forest University School of Medicine

“There’s an urgent need for safe and affordable interventions to protect cognition against decline in older adults,” said Laura D. Baker, Ph.D., professor of gerontology and geriatric medicine at Wake Forest University School of Medicine and co-principal investigator of the trial, along with Mark Espeland, Ph.D., professor of gerontology and geriatric medicine at Wake Forest University School of Medicine.

Laura Baker

Laura D. Baker, Ph.D., professor of gerontology and geriatric medicine at Wake Forest University School of Medicine. Credit: Wake Forest University School of Medicine

The COcoa Supplement and Multivitamin Outcomes Study for the Mind (COSMOS-Mind), was an ancillary study to the COSMOS trial led by Brigham and Women’s Hospital that randomized 21,442 men and women across the U.S. The study investigated whether taking a daily cocoa extract supplement or a daily multivitamin-mineral supplement reduces the risk of developing heart disease, stroke, cancer, and other health outcomes. It was funded by the National Institute on Aging of the National Institutes of Health.

According to Baker, cocoa extract is rich in compounds called flavanols, and past research indicates that these compounds may positively impact cognition. In addition, Baker said that several micronutrients and minerals are needed to support normal body and brain function, and deficiencies in older adults may increase the risk for cognitive decline and dementia.

In COSMOS-Mind, scientists tested whether daily administration of cocoa extract versus placebo and a multivitamin-mineral versus placebo improved cognition in older adults. More than 2,200 participants, ages 65 and older, were enrolled, and they were followed for three years. To evaluate memory and other cognitive abilities, participants completed tests over the telephone at baseline and annually.

Mark Espeland

Mark Espeland, Ph.D., professor of gerontology and geriatric medicine at Wake Forest University School of Medicine. Credit: Wake Forest University School of Medicine

“Our study showed that although cocoa extract did not affect cognition, daily multivitamin-mineral supplementation resulted in statistically significant cognitive improvement,” Baker said. “This is the first evidence of cognitive benefit in a large longer-term study of multivitamin supplementation in older adults.”

According to the researchers’ estimations, three years of multivitamin supplementation roughly translated to a 60% slowing of cognitive decline (about 1.8 years). The results showed that benefits were relatively more pronounced in participants with significant cardiovascular disease, which is important because these individuals are already at increased risk for cognitive impairment and decline.

“It’s too early to recommend daily multivitamin supplementation to prevent cognitive decline,” Baker said. “While these preliminary findings are promising, additional research is needed in a larger and more diverse group of people. Also, we still have work to do to better understand why the multivitamin might benefit cognition in older adults.”

For more on this research, see Daily Multivitamin May Slow Cognitive Aging.

Reference: “Effects of cocoa extract and a multivitamin on cognitive function: A randomized clinical trial” by Laura D. Baker, Joann E. Manson, Stephen R. Rapp, Howard D. Sesso, Sarah A. Gaussoin, Sally A. Shumaker and Mark A. Espeland, 14 September 2022, Alzheimer s & Dementia.

DOI: 10.1002/alz.12767

The COcoa Supplement and Multivitamin Outcomes Study (COSMOS) is supported by an investigator-initiated grant from Read More

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