The Claim
In male physicians aged 65 and older, daily multivitamin supplementation for over a decade has no effect on the rate of cognitive decline, which progresses at approximately -0.045 standard units per year on the global composite score.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Among male physicians aged 65 and older, taking a daily multivitamin for more than ten years does not change the rate at which cognitive abilities decline, which is about -0.045 standard units per year on a standardized cognitive test.
See the scientific wording
In male physicians aged 65 and older, daily multivitamin supplementation for over a decade does not alter the trajectory of cognitive decline, which progresses at a rate of approximately -0.045 standard units per year on the global composite score, regardless of supplementation status.
The brain's neurons slowly lose function over time as their energy supply and communication connections degrade at a steady rate. Taking daily multivitamins does not stop this natural process because the vitamins do not increase energy production in brain cells or repair the connections between them.
What the research says
1 studyStudy: Long-Term Multivitamin Supplementation and Cognitive Function in Men
In older men, thinking skills naturally get a little worse each year, about 4.5% on a standard test. This big study found that taking a daily multivitamin for over 10 years didn’t slow down that decline — their brains got just as slow as those who didn’t take vitamins.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.