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

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

by David Perlmutter MD

4.6 (11,309)

4.6 stars from 11,309 reviews. One of the highest rated Nonfiction books we track.

359 pages~6 hr readPublished by Taylor & Francis GroupPublished 2013-01-01

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Last checked: Jul 8, 2026

Price history: $2.99 $14.99

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Fans of these authors will like this...

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Perfect for you if...

  • You're struggling with brain fog, memory issues, or mood problems and willing to reconsider what you thought was healthy eating.
  • You want hard science about how food affects your brain without the pseudoscience or extreme diet culture.
  • You're looking for a practical, actionable plan with recipes, not just theory.

Maybe not for you if...

  • You're not ready to question conventional dietary advice about whole grains and carbohydrates.
  • You prefer evidence from randomised controlled trials over case studies and observational research.
  • You're looking for a book that isn't controversial in medical circles.

About this book

Grain Brain examines the effects of wheat, sugar, and carbs on brain health. Neurologist David Perlmutter, MD, argues that carbohydrates—including whole grains—can contribute to dementia, ADHD, epilepsy, anxiety, chronic headaches, depression, and decreased libido. According to the book, inflammation triggered by carbs, particularly those containing gluten or high sugar content, underlies degenerative brain conditions. Perlmutter discusses how the brain responds to common ingredients in bread and fruit, the potential effects of statin drugs on memory, the benefits of a diet high in fats, and methods to promote new brain cell growth. The book includes a 4-week plan designed to maintain brain health and reduce risk of neurological diseases while addressing common conditions without medication. The plan features strategies, recipes, and weekly goals. The book combines personal accounts, research, and practical guidance on managing genes and maintaining long-term health.

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Price History

Kindle price over time. Green zones = periods when the book was free.

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Free$7.50$14.99Mar '20Sep '21Apr '23Jul '26
$2.99$14.99

Currently on sale at $1.99 — 87% off peak. Price has dropped 14 times over the last 6 years. Goes on sale roughly every 172 days. Typically stays discounted for 34 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

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#7,799#175,249#342,698May '18Jan '22Jul '23Jul '26

Currently around #11K in the Kindle store — a steady mid-list seller. Sales have softened 86% recently.

Rating & Reviews

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4.0★4.5★5.0★May '23Jan '24Jul '24Nov '25RatingReviews

Currently 4.6★ from 11,309 reviews

Gaining approximately 13 new reviews per month. Rating has remained stable at 4.6 over the tracking period.

Sale Prediction

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Free$7.50$14.99Mar '20Sep '21Apr '23Jul '26PredictedJul '26

Actual Predicted

This book is currently discounted at $1.99. It typically returns to around $14.99.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

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David Perlmutter MD

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