2024-01-23 13:15:44
Consuming a daily multivitamin food supplement would not only improve memory but also delay cognitive aging in the elderly. This is what emerges from a large study of more than 5,000 American adults, 500 of whom were followed in physics for two years. Results that could help preserve the brain health of seniors at a lower cost.
The World Health Organization (WHO) estimates that more than 55 million people suffer from dementia worldwide, 60% to 70% of cases resulting from Alzheimer’s disease. According to the estimates of the world health authority, due to the aging of the population, this figure is expected to increase exponentially in the years to come, reaching 152 million people by 2050. A public health problem which has a cost, namely more than 818 billion dollars per year in 2017, but which could more than double by 2030, and which also weighs heavily on caregivers, these people who support loved ones with disabilities or loss of autonomy. So many reasons to focus on research to find lasting solutions intended to preserve the cognitive functions of older people.
This is the whole purpose of the Cocoa Supplement and Multivitamin Outcomes Study (COSMOS), a large-scale study carried out in the United States (21,442 participants aged 60 and over) to determine the impact of different types of supplements on cardiovascular health, cancer, and other diseases. For this new component, researchers from Mass General Brigham focused more specifically on the effectiveness (or not) of consuming a multivitamin supplement per day, in comparison with a placebo, on memory and overall cognition. To do this, they followed 573 participants in person for two years, and evaluated the results of a combined analysis of three different studies.
“Cognitive decline is one of the major health problems for most older adults, and a daily multivitamin supplement may be an attractive and accessible approach to slowing cognitive aging,” explains Chirag Vyas, lead author of this work. research, in a press release.
Cognitive aging delayed by 2 years
Featured in The American Journal of Clinical Nutrition, their work was therefore carried out in two stages. The clinical study first showed “a modest benefit” of daily multivitamin intake, compared to placebo, on global cognition during the two years of follow-up, but “a statistically significant benefit” on episodic memory . But it was the meta-analysis that found “strong evidence of benefits for global cognition and episodic memory.” All of this leading researchers to suggest that taking a daily multivitamin was effective in slowing down overall cognitive aging by around two years, again in comparison with taking a placebo.
“Meta-analysis of three separate studies on cognition provides strong and consistent evidence that taking a daily multivitamin, containing more than 20 essential micronutrients, helps prevent memory loss and slow cognitive aging,” continues Chirag Vyas. And one of the co-authors of this work concludes: “These results will attract the attention of many older people who are, rightly, very interested in ways to preserve their brain health, because they provide evidence of the role of a daily multivitamin in supporting better cognitive aging”.
Note that a previous part of the COSMOS study looked at the benefits of cocoa flavanols on cognitive functions. The researchers then showed that taking a daily supplement of cocoa extracts had no benefit on cognitive function, except in people with an unbalanced diet.
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