How Much Vitamin D You REALLY Should Be Taking | EP 415

2026-08-11

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I once had a patient tell me, "You don't know much about vitamin D, do you?" He had a point, not because I hadn't studied it, but because so much of what we're taught about vitamin D simply hasn't caught up to the research.My patient’s question led me down a path of research that changed how I treat every patient who walks through my door.In this episode, I break down Why vitamin D isn't a vitamin at all but a hormone quietly running the show for your gut and immune system Why the "toxic" dose you've been warned about is a m...

I once had a patient tell me, "You don't know much about vitamin D, do you?"

He had a point, not because I hadn't studied it, but because so much of what we're taught about vitamin D simply hasn't caught up to the research.

My patient’s question led me down a path of research that changed how I treat every patient who walks through my door.

In this episode, I break down

Why vitamin D isn't a vitamin at all but a hormone quietly running the show for your gut and immune system
Why the "toxic" dose you've been warned about is a myth that's kept millions of people needlessly deficient
Why this one hormone might be the closest thing we have to a longevity switch.

Plus, learn the exact number I push my own patients' levels to, and why your doctor's idea of "normal" is probably way too low.

For full show notes and transcript: drgundry.com/how-much-vitamin-d-should-i-take

On this episode, you’ll learn:

Why vitamin D isn't actually a vitamin (01:11)
How nearly 80% of new patients turn out to be vitamin D deficient (you probably are too!) (01:31)
What vitamin D has to do with the diversity of your gut microbiome (02:18)
What a major university research group discovered about vitamin D at doses most people assume would be dangerous (09:04)
A real patient story from this week, and the dose it took to finally get his vitamin D levels where they needed to be (11:33)
The sweet spot dose of vitamin D that works for most people — and who might need to dial it back (12:46)
Why doing THIS to your peppers might be the trick to enjoying them without the reaction (16:32)

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