The Claim

Daily multivitamin-mineral supplementation for 2 to 3 years has no significant effect on executive function or attention in older adults.

Source: Effect of multivitamin-mineral supplementation versus placebo on cognitive function: Results from the clinic sub-cohort of the COSMOS randomized clinical trial and meta-analysis of three cognitive studies within COSMOS.

What the research says

Challenges is higher

Challenge is ahead, but a single strong supporting study can change this.

Supports
0score
Challenges
95score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

Taking a daily multivitamin and mineral supplement for two to three years does not change executive function or attention in older adults.

See the scientific wording

Daily multivitamin-mineral supplementation for 2 to 3 years does not significantly improve executive function or attention in older adults, as demonstrated by null results in both the COSMOS-Clinic cohort and the meta-analysis of three sub-studies.

Why this might work

Taking daily multivitamins for two to three years does not change how the brain's planning and focus centers use chemicals or communicate with each other, so thinking skills like attention and decision-making stay the same.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: Effect of multivitamin-mineral supplementation versus placebo on cognitive function: Results from the clinic sub-cohort of the COSMOS randomized clinical trial and meta-analysis of three cognitive studies within COSMOS.

    Taking a daily multivitamin for two years didn’t help older adults get better at planning, focusing, or switching tasks — even though it slightly helped with memory and overall thinking. So the claim that it doesn’t improve focus or planning is backed by the study.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.