Highlights
- In a prospective cohort study, we assessed effects of Vitamin D on dementia incidence in 12,388 participants from the National Alzheimer's Coordinating Center dataset.
- Vitamin D exposure was associated with 40% lower dementia incidence versus no exposure.
- Vitamin D effects were significantly greater in females versus males and in normal cognition versus mild cognitive impairment.
- Vitamin D effects were significantly greater in apolipoprotein E ε4 non-carriers versus carriers.
- Vitamin D has potential for dementia prevention, especially in the high-risk strata.
A "40% lower dementia incidence" is amazing, no question supplementing vitamin D is significant. We can all hope this finding holds up.
The study is correlational so causation isn't proven, but it will be hard to justify not taking D. It is neither expensive nor difficult to source.
