Why Vitamin D Deficiency Accelerates Brain Aging
Update: 2025-05-21
Description
Vitamin D is far more than just a vitamin—it's a potent steroid hormone regulating nearly 5% of our genome. Yet, remarkably, up to 70% of Americans aren't getting enough, placing them at increased risk for dementia and Alzheimer's disease. In this episode, I explore compelling new evidence from a study involving over 12,000 participants, demonstrating that vitamin D supplementation can reduce dementia risk by an impressive 40%, protecting even adults with genetic Alzheimer's risk (ApoE4 carriers).
Timestamps:
Timestamps:
- (00:00 ) Can vitamin D supplements reduce dementia risk?
- (00:46 ) How common is vitamin D deficiency?
- (03:31 ) What studies reveal about genes, vitamin D, and dementia
- (05:44 ) Does deficiency accelerate brain aging?
- (06:45 ) Can vitamin D supplementation enhance cognitive function?
- (08:15 ) Dementia risk reduction insights from 12,388 adults
- (09:58 ) Why women may benefit most
- (10:49 ) Normal vs. impaired cognition—who benefits more from vitamin D?
- (11:21 ) Do ApoE4 carriers get dementia protection from vitamin D?
- (13:00 ) How mild cognitive impairment affects dementia risk
- (13:41 ) Does the form of vitamin D matter?
- (14:11 ) What are the optimal vitamin D blood levels?
- (15:07 ) What dose corrects deficiency?
- (15:33 ) How vitamin D directly supports brain function
Watch this video on YouTube
Show notes are available by clicking here
The study discussed: Vitamin D supplementation and incident dementia: Effects of sex, APOE, and baseline cognitive status
Show notes are available by clicking here
The study discussed: Vitamin D supplementation and incident dementia: Effects of sex, APOE, and baseline cognitive status
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