The Claim
Long-term daily multivitamin supplementation has no effect on verbal memory performance in men aged 65 years or older, as demonstrated by a mean difference in cognitive change of -0.005 standard units (95% CI: -0.04 to 0.03) over 12 years compared to placebo.
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.
Taking a daily multivitamin for 12 years does not change verbal memory in men aged 65 or older, based on measurements showing no meaningful difference compared to those who took a placebo.
See the scientific wording
Long-term daily multivitamin supplementation does not improve verbal memory performance in men aged 65 years or older, as evidenced by no significant difference in change over 12 years compared to placebo, with a mean difference in cognitive change of -0.005 standard units (95% CI: -0.04 to 0.03).
The brain's circuits that store and recall words and stories do not change in strength or efficiency when older men take daily multivitamins, so their ability to remember verbal information stays the same over time.
What the research says
1 studyStudy: Long-Term Multivitamin Supplementation and Cognitive Function in Men
This big, well-done study found that older men who took a daily multivitamin for 12 years remembered words and stories just as well—or poorly—as those who took a sugar pill. So, the multivitamin didn’t help their memory at all.
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.