Grain Brain

The Surprising Truth about Wheat, Carbs, and Sugar--Your Brain's Silent Killers

Contributors

By David Perlmutter MD

Read by Peter Ganim

On Sale
Mar 1, 2026
Page Count
336 pages
Publisher
Little Brown Spark
ISBN-13
9780316234832

The devastating truth about the effects of wheat, sugar, and carbs on the brain, with a 4-week plan to achieve optimum health.

In Grain Brain, renowned neurologist David Perlmutter, MD, exposes a finding that’s been buried in the medical literature for far too long: carbs are destroying your brain. Even so-called healthy carbs like whole grains can cause dementia, ADHD, epilepsy, anxiety, chronic headaches, depression, decreased libido, and much more.

Groundbreaking and timely, Grain Brain shows that the fate of your brain is not in your genes. It’s in the food you eat. The cornerstone of all degenerative conditions, including brain disorders, is inflammation, which can be triggered by carbs, especially containing gluten or high in sugar. Dr. Perlmutter explains what happens when the brain encounters common ingredients in your daily bread and fruit bowls, how statin drugs may be erasing your memory, why a diet high in “good fats” is ideal, and how to spur the growth of new brain cells at any age.

Dr. Perlmutter’s revolutionary 4-week plan shows you how to keep your brain healthy, vibrant, and sharp while dramatically reducing your risk for debilitating neurological diseases as well as relieving more common, everyday conditions — without drugs. Easy-to-follow strategies, delicious recipes, and weekly goals help you to put the plan into action. With a blend of anecdotes, cutting-edge research, and accessible, practical advice, Grain Brain teaches you how to take control of your “smart genes,” regain wellness, and enjoy lifelong health and vitality.

  • "Grain Brain(Revised Edition) is brilliant, accessible, and life changing. By following the scientific advice, you can have a healthier brain and healthier body starting today."
    Daniel G. Amen, MD, author of Memory Rescue and Change Your Brain, Change Your Body
  • "There was a time when the notion that diet and gut health could affect brain health was controversial. Today, it is frontline news. The incredible Grain Brain by Dr. David Perlmutter is a significant reason for this change."
    Robb Wolf, New York Times bestselling author of The Paleo Solution and Wired to Eat
  • "If we want to care for our minds, then we have to be mindful about what we eat. Dr. Perlmutter understands the connection between diet and brain health, and this revised edition of Grain Brain teaches us that simple lifestyle changes can make a world of difference."
    Maria Shriver, award-winning journalist and bestselling author of I've Been Thinking...
  • "Dr. Perlmutter outlines an innovative approach to our most fragile organ, the brain. He is an absolute leader in the use of alternative and conventional approaches in the treatment of neurologic disorders. I have referred him patients with wonderful results. He is on the cutting edge and can help change the way we practice medicine."
    Mehmet Oz, MD
  • "Dr Perlmutter's newly revised and updated Grain Brain is a masterpiece of scientifically accurate information on what leads to dementia and other brain conditions. And most importantly, it lays out a plan for how to stop the insidious brain inflammation that is the result of the wrong diet. The end result will be clearer thinking, improved mood, and an end to worrying about the chance of losing your memory as you get older."
    Christiane Northrup, MD, New York Times bestselling author of The Wisdom of Menopause and Goddesses Never Age

Formats and Prices

Price

$16.99

Price

$20.49 CAD

David Perlmutter MD

About the Author

David Perlmutter, MD, is a board-certified neurologist and a Fellow of the American College of Nutrition. He was the recipient of the Linus Pauling Award for his innovative approaches to neurological disorders. With his books now published in twenty-seven languages, Dr. Perlmutter is setting new standards for what healthy lifestyle means around the world.

He is the author of the New York Times bestsellers Grain Brain, The Grain Brain Cookbook, and Brain Maker, as well as The Better Brain Book and Raise a Smarter Child by Kindergarten. He lives in Naples, Florida.

Learn more about this author