The Leaky Brain Epidemic No One Is Talking About | EP 403.B
DR. GUNDRY PODCAST: GUT HEALTH, WEIGHT LOSS, AND NUTRITION
PodcastOne
4.6 • 1.8K Ratings
🗓️ 21 May 2026
⏱️ 14 minutes
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Summary
If you have leaky gut… there’s a good chance you may have leaky brain too.
In this episode, I explain how harmful particles can enter the brain, trigger inflammation, and contribute to brain fog, neurological issues, and even Alzheimer’s disease. You’ll also learn what current research says about repairing the blood-brain barrier and protecting long-term cognitive health.
For the episode's full transcript: https://drgundry.com/ep-403-b-transcript/
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Transcript
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| 0:00.0 | You've probably heard of leaky gut, but leaky brain? |
| 0:08.8 | Trust me, this is real. |
| 0:10.6 | It's serious. |
| 0:11.7 | And it may be affecting you right now without you even knowing it. |
| 0:15.7 | So stick with me, because what I'm about to share could change the way you think about your brain health forever. |
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| 0:58.4 | If you've got leaky gut, there is a very good chance that you have leaky brain. |
| 1:07.5 | Now, what do I mean by that? The brain normally has a communication system with your rest of your body. |
| 1:17.6 | And one of those main systems is a very large nerve that runs from your brain to all of your organs, |
| 1:25.6 | your heart, your lungs, your gut, called the vagus nerve. |
| 1:29.5 | Now, when I was in medical school, long ago, I was taught that the vagus nerve is the way |
| 1:35.5 | for the brain to talk to the gut and to kind of tell the gut what to do. |
| 1:41.7 | Come to find out that for every one fiber, and think of this literally |
| 1:48.3 | as a cable network or a telephone cable, for every fiber from the brain down to the gut, |
| 1:56.4 | there are nine fibers coming from the gut up to the brain. |
| 2:03.0 | And when this was discovered, we realized that there was a gut-brain connection. |
| 2:10.2 | It got even more interesting when it was discovered that there were as many neurons, |
| 2:16.7 | nerve cells in the gut as there were in the entire spinal |
... |
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