Surprising Study Results: Multivitamins Shown to Slow Ageing in the Brain by Two Years for Seniors

A new study unveils the positive impact of daily multivitamin supplements on memory and cognitive abilities in the elderly.

This marks a significant stride in the battle against cognitive ageing.

The COcoa Supplement and Multivitamin Outcomes Study (COSMOS), a large-scale, nationwide, randomised trial, rigorously tests cocoa extract and multivitamin supplements directed by researchers at Mass General Brigham. 

Chirag Vyas, MBBS, MPH, highlights, ‘A daily supplement of multivitamins has the potential as an appealing and accessible approach to slow cognitive ageing.’ This study, focusing on older adults, forms a critical part of the endeavour to understand and combat cognitive decline.

COSMOS-Clinic Study Insights

In the COSMOS trial, researchers conducted a detailed in-person cognitive assessment among 573 participants. They observed, ‘a modest benefit for the multivitamin, compared to placebo, on global cognition over two years.’ Notably, this benefit extended significantly to episodic memory. Though not in executive function or attention, revealing the specific areas where multivitamins have the most impact.

Impact on Memory and Cognitive Functions

The study’s findings are particularly significant in the context of memory and overall cognitive health. The team’s meta-analysis of three separate studies within COSMOS, involving over 5,000 participants, showed strong evidence of multivitamin benefits. 

They stated, ‘The meta-analysis of three separate cognition studies provides strong and consistent evidence that taking a daily multivitamin, containing more than 20 essential micronutrients, helps prevent memory loss and slow down cognitive ageing.’ This points to a broader, substantial impact of multivitamins on the cognitive well-being of older adults.

Understanding the Role of Multivitamins in Cognitive Health

The study’s results provide hope for the ageing population, particularly in the context of cognitive preservation. 

Multivitamins, commonly contain a blend of essential vitamins and minerals. They are theorised to support various biological pathways that underpin cognitive health. This research moves beyond previous studies that focused on single or limited combinations of nutrients, which showed minimal cognitive benefits. Instead, the COSMOS trial demonstrates how a broad-based multivitamin approach can be more effective in enhancing memory and overall brain function in older adults.

Future Research and Clinical Applications

Looking ahead, the COSMOS findings ignite a pathway for future research. Particularly in understanding how multivitamins interact with the ageing brain. The study paves the way for exploring the mechanisms behind these cognitive benefits, potentially leading to more targeted interventions. 

Furthermore, these insights could greatly influence clinical practices, offering healthcare providers a new tool in their arsenal for combating cognitive decline in older populations. The trial’s emphasis on in-person, detailed neuropsychological assessments sets a new standard for future research in this field, aiming to uncover finer nuances of cognitive health maintenance.

Key Takeaways and Recommendations

As we assimilate the learnings from the COSMOS trial, a few key points emerge. First, the study offers robust evidence supporting the daily use of multivitamins for improving memory and cognitive functions in seniors. Second, it highlights the importance of comprehensive cognitive assessments in understanding the effects of nutritional supplements on brain health. Finally, these findings advocate for the inclusion of multivitamins in preventive health strategies for older adults.  Potentially offering a straightforward, cost-effective solution to mitigate the risks of cognitive decline.

Conclusion and Future Perspectives

In conclusion, the COSMOS trial marks a significant milestone in geriatric healthcare research. It provides evidence-based guidance on the use of multivitamins for cognitive enhancement in older adults. 

As the global demographic shifts towards an older population, these findings could have a profound impact on public health policies and individual health choices. The study not only reinforces the value of multivitamins in maintaining cognitive health. It also opens new avenues for research into nutritional interventions for age-related cognitive decline. Looking forward, the scientific community awaits further exploration into the intricate relationship between nutrition and brain health, potentially revolutionising our approach to ageing and cognitive wellness.


  1. Third major study finds evidence that daily multivitamin supplements improve memory and slow cognitive aging in older adults. (2024, January 24). ScienceDaily.
  2. Vyas, C. M., Manson, J. E., Sesso, H. D., Cook, N. R., Rist, P. M., Weinberg, A., Moorthy, M. V., Baker, L. D., Espeland, M. A., Yeung, L., Brickman, A. M., & Okereke, O. I. (2024, January 1). Effect of multivitamin-mineral supplementation versus placebo on cognitive function: results from the clinic subcohort of the COcoa Supplement and Multivitamin Outcomes Study (COSMOS) randomized clinical trial and meta-analysis of 3 cognitive studies within COSMOS. The American Journal of Clinical Nutrition.

Share via

Also worth reading

People also read:

Indonesia Mask Covid-19
Will Rising COVID-19 Cases Strain Healthcare Systems in Southeast Asia Again?

Southeast Asian countries, including Malaysia, the Philippines, Vietnam, and Singapore, are witnessing a surge in COVID-19 cases, which is putting immense pressure on their healthcare systems. This increase in cases is attributed to factors such as recent holiday gatherings and an ageing population. As a result, hospitals in the region are grappling with overcrowded facilities and acute medical staff shortages.

Read More »