Is High Blood Sugar Ruining Your Brain? The Truth About Type 3 Diabetes

By Dr. Beverly Yates, ND · February 27, 2026 · 59 min episode

About This Episode

Is your blood sugar stealing your memories?

In this episode, Dr. Beverly Yates welcomes New York Times bestselling author Dr. Austin Perlmutter to discuss the “Neuro-Metabolic” crisis. They dive deep into why the brain is the first organ to suffer from glucose spikes and how Insulin Resistance in the brain is creating a new epidemic: Type 3 Diabetes.

If you are struggling with brain fog, managing Type 2 Diabetes, or worried about cognitive decline, this “roadmap” to mitochondrial health is a must-watch.

Key Moments in This Episode

Intro: The Brain-Sugar Connection

Why the Brain is Sensitive to Glucose “Whipsaws”

What is Type 3 Diabetes? (The Insulin-Brain Link)

A1C vs. CGM: Which Data Matters More for Brain Health?

The Best Exercise for “Anti-Inflammatory” Brain Signals

Reversing Type 2 Diabetes to Protect Your Mental Clarity

About Our Guest

Dr. Austin Perlmutter is a board-certified internal medicine physician and the NYT bestselling co-author of Brainwash. He is a leading expert in neuro-metabolism, focusing on how lifestyle factors like food and movement influence our decision-making and long-term brain health.

Connect with Dr. Perlmutter

Website: https://www.austinperlmutter.com

Never Miss an Episode

New conversations with Dr. Yates and leading experts on blood sugar, insulin resistance and reversing type 2 diabetes naturally.

Dr. Beverly Yates, ND
About the Author

Dr. Beverly Yates, ND

Diabetes expert, MIT-trained engineer, and licensed Naturopathic Doctor with more than 30 years of clinical experience. Creator of The Yates Protocol and author of The Yates Protocol: 5 Simple Steps to Fix Your Blood Sugar and Reverse Type 2 Diabetes.

This article is for educational purposes only and is not medical advice, diagnosis, or treatment. Always consult your healthcare provider about your individual situation.

Dr. Beverly Yates, ND

Dr. Beverly Yates, ND

Helping people understand their blood sugar and know what to do next.

The Blood Sugar Clarity Quiz

What’s Really Getting in the Way of Better Blood Sugar?

Discover where you are in your blood sugar journey—and what to focus on first.

The Yates Protocol

Five simple steps to fix your blood sugar and reverse type 2 diabetes.

The Blood Sugar Shift

Join 45K+ readers getting practical weekly strategies from Dr. Yates.

Join 45K+ Readers Making Smarter Blood Sugar Choices

Get The Blood Sugar Shift, Dr. Beverly Yates’ free weekly newsletter with practical strategies to help you understand your numbers, lower your A1C, and know what to focus on next.