Welcome to the Dr. Gundry podcast, where Dr. Stephen Gundry shares his groundbreaking research from over 25 years of treating patients with diet and lifestyle changes alone.

Dr. Gundry and other wellness experts offer inspiring stories, the latest scientific advancements, and practical tips to empower you to take control of your health and live a long happy life.

Did you know scientists now call Alzheimer's Disease type 3 diabetes? It turns out metabolic dysfunction

isn't just about weight gain. It's fueling neurodegeneration. And guess what? It all starts in the gut. In my new book,

The Gut Brain Paradox, I break down how poor gut health and metabolic inflexibility starve neurons

of their only fuel source leading to cognitive decline.

But here's the good news.

You can take control of your gut and protect your brain for years to come.

Pre-order the gut brain paradox today and discover the key to lifelong brain health.

Number one.

I love this one. Calories in, calories out. Now, this is the second law of thermodynamics, and I won't take you back to physics class. But the whole idea was that if you eat calories, then you're going to have to burn those calories. And if you eat excess

calories, more than you burn, then you will gain weight. It makes such tremendous sense,

but it's absolutely completely wrong. So how did all this get started? Well, it got started when a

calerimeter was invented. And a calerimeter was designed to find out how many kilojoules of

kilocalories or kilojoules of energy any particular food contained.

So what they basically did is they built a chamber and they simplistically lit the food on fire

and they measured how much heat was produced as that food disintegrated into ash.

And that was the number of calories that that food contained.

Sounds simple enough.

Unfortunately, inside of your intestines is not a calerimeter.

And what no one knew, particularly until the advent

of the human microbiome project,

...