New research has linked levels of vitamin D in midlife with toxic tangles of tau protein that accumulate in the brains of those with  Alzheimer's disease.

A statistical analysis of blood samples and brain scans from 793 adults showed that the more vitamin D in someone's system in middle age, the lower the amount of tau protein tangles they tended to have years later.

https://www.sciencealert.com/common-vitamin-may-reduce-buildup-of-alzheimers-proteins-study-finds

1 hour ago, 3NUMBAS said:

New research has linked levels of vitamin D in midlife with toxic tangles of tau protein that accumulate in the brains of those with  Alzheimer's disease.

A statistical analysis of blood samples and brain scans from 793 adults showed that the more vitamin D in someone's system in middle age, the lower the amount of tau protein tangles they tended to have years later.

Um, an interesting way of describing the issue: The first sentence (and the title) seems to suggest that VitD causes the problem; the second sentence seems to suggest that VitD reduces the problem ...