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VITAMIN D IS LINKED TO DEMENTIA?!

January 31, 2026 / 01:17

This episode discusses the link between vitamin D and dementia risk, featuring insights on supplementation and its effects on cognition. Key topics include the impact of vitamin D deficiency on dementia risk, the benefits of vitamin D3 supplementation, and lifestyle factors that contribute to cognitive decline.

The conversation highlights that being deficient in vitamin D can increase dementia risk by 80%, while supplementation can reduce this risk by 40%. The speakers mention studies showing improved cognition in dementia patients who received vitamin D supplements compared to those on a placebo.

Listeners are informed about the importance of getting a blood test to check vitamin D levels and the recommended daily intake. The discussion emphasizes that vitamin D supplements are affordable and easy to take.

TLDR

Vitamin D deficiency increases dementia risk; supplementation can improve cognition.

Episode

1:17

00:00:00

Being deficient or insufficient in vitamin D can increase dementia risk by 80%. The

00:00:07

converse is also true. So people that supplement with vitamin D3 have a 40% reduced risk of dementia. And there's

00:00:14

actually even been studies in people with dementia and people with Alzheimer's disease that were given a

00:00:18

vitamin D supplement or a placebo control. And those individuals given the vitamin D supplement had improved

00:00:25

cognition. They had um lower markers of amalloid plaques. So those were this will those were also measured as well.

00:00:32

So vitamin D is doing a lot of things. It's it's regulating 5% of your protein

00:00:37

coding human genome. >> If I want to increase my probability of getting dementia then I've got to stay

00:00:42

out of the sun. I've got to avoid um vitamin D. I've got to drink alcohol,

00:00:47

smoke, be sedentary, and I've got to sleep really badly. >> Yes. And eat a lot of refined sugar.

00:00:54

>> Yeah. >> Yes. Yes. Exactly. Okay. >> Exactly. Now, you might go, "Well, how

00:00:58

much vitamin D?" Right? I'm talking about deficiency and insufficiency, and

00:01:02

you really want to get a blood test to know what your levels are. IUs of vitamin D per day. So, not and that's

00:01:09

been done that's been shown in multiple studies. Not it's not it's not that hard

00:01:12

to take. In fact, vitamin D supplements are probably the cheapest supplement out

00:01:15

there. It's like 10 cents per pill.

Episode Highlights

Vitamin D and Dementia Risk
Deficiency in vitamin D can increase dementia risk by 80%, while supplementation reduces it by 40%.
“Vitamin D can reduce dementia risk by 40%.”
@ 00m 04s
January 31, 2026
The Importance of Vitamin D Testing
Getting a blood test for vitamin D levels is crucial for understanding your health needs.
“You really want to get a blood test to know what your levels are.”
@ 01m 02s
January 31, 2026

Episode Quotes

Vitamin D can reduce dementia risk by 40%.
VITAMIN D IS LINKED TO DEMENTIA?!
Vitamin D supplements are probably the cheapest supplement out there.
VITAMIN D IS LINKED TO DEMENTIA?!

Key Moments

Cognition Improvement00:23
Vitamin D Testing00:57
Affordable Supplements01:13