One Common Vitamin Could Lower Toxic Alzheimer's Proteins, Research Suggests

A study of 793 Framingham Heart Study adults linked higher vitamin D levels around age 39 with lower tau buildup on brain PET scans about 16 years later.

Amyloid beta levels were not associated with vitamin D, suggesting the effect may be specific to tau pathology.

The results point to midlife vitamin D as a possible modifiable factor for later brain health and Alzheimer’s risk.

Researchers caution that the study shows an association, not proof that vitamin D prevents Alzheimer’s disease.