The Claim
Multivitamin-mineral supplementation does not reduce the incidence of mild cognitive impairment or dementia over a 3-year period in the population studied in the COSMOS-Mind trial, despite a modest slowing of cognitive decline among those who developed mild cognitive impairment.
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 and mineral supplement for three years does not lower the number of people who develop mild cognitive impairment or dementia, although it slightly slows cognitive decline in those who already develop mild cognitive impairment.
See the scientific wording
The cognitive benefits observed in the COSMOS-Mind trial from multivitamin-mineral supplementation are not sufficient to reduce the incidence of mild cognitive impairment or dementia over a 3-year period, despite showing a modest slowing of decline in those who developed MCI.
Even with extra vitamins and minerals, the brain's energy systems and repair processes cannot fully recover from ongoing damage in aging neurons, so memory problems still develop, but the damage happens a little slower once it starts.
What the research says
1 studyTaking multivitamins didn't stop older adults from developing memory problems over three years, but for those who still got memory issues, their thinking skills got worse a little slower than 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.