Podcasts / The Diary Of A CEO with Steven Bartlett

Vitamin D Expert: The Supplement World Is Giving The WRONG Advice!

Jul 27, 2026 · 2h 0m · YouTube

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EP · The Diary Of A CEO with Steven Bartlett · Vitamin D Expert: The Supplement World Is Giving The WRONG Advice!2:00:06

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0:00The vitamin world is giving the wrong advice. For instance, if you do not know what you're doing with them, they're just as dangerous as any drug you could put in your mouth. The next thing is, supplementing with vitamin D is not the same as being outdoors because we absorb it through our skin. But what we've been told is, don't ever let the sun touch your skin. And another example is when we're deficient in this vitamin, our brain actually forgets how to sleep.

0:24And I know that because I'm a neurologist and I wanted to tell the world about what my patients and I had discovered together about making sleep better. And billions around the world have a sleep problem, but no one's treating it. And the usual sleep treatment is behavioral, like blackout curtains, go to bed at the same time. But that is not something that's helped the people who wind up with me. They've tried all that already. And I've taken care of 28-year-olds who just had a stroke. 28, sorry?

0:5128 year olds. We associate stroke with being old and having diabetes and hypertension and heart disease. No. So then I did a whole bunch of sleep studies because we found some exciting things by accident that turn out to have to do with vitamin deficiencies and deficiencies that have developed from being indoors too much. And we're starting to feel the effects of that, like obesity.

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