B vitamins vs placebo
Incidence of dementia or MCI · cognitively healthy people in mid and late life
B vitamins showed no clear difference in incidence of MCI or dementia > 2 to 5 years of supplementation compared with placebo (moderate certainty).
1 finding from 1 review
- Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late… 2018 · Cochrane Headline outcomes onlyRR 0.89 [0.67, 1.18]1 study · 1803 participantsModerate