Grain Brain by David Perlmutter — book cover

Grain Brain

David Perlmutter · 2013

Grain Brain (2013) is a book by David Perlmutter on Nutrition/Brain health. Neurologist David Perlmutter argues that the modern grain- and sugar-heavy diet is silently inflaming your brain, and that swapping carbs for healthy fats can protect your memory, mood, and long-term cognition.

8 min read · 9 chapters · Health

Why it’s on the shelf

Bestselling, debate-sparking book on carbs, gluten, and brain health with a clear dietary program.

Three of the ideas you’ll keep

The Clif summary of Grain Brain pulls out 7 insights. Here are the first three.

  1. Treat chronic inflammation as the root cause of brain disease: high-carb, gluten-rich, and sugary foods spark inflammation that damages neurons, so cutting them is your single highest-leverage move for protecting cognition.
  2. Cap daily carbs aggressively (start near 30-40g, settle under 60g) and cut gluten entirely, because even 'healthy' whole wheat spikes blood sugar harder than table sugar and feeds neurological inflammation.
  3. Make fat your primary fuel: load up on olive oil, avocados, coconut oil, nuts, eggs, wild fish, and grass-fed meat, and stop fearing dietary cholesterol and saturated fat while ditching omega-6 vegetable oils.

The other 4 — and the full 8-minute summary — are in the app.

What’s inside: 9 chapters

The whole summary runs about 8 minutes, read or listened to.

  1. The Carb Brain: Why Grains Are Silently Hurting You
  2. Inflammation: The Common Root of Brain Decline
  3. Gluten: More Than a Gut Problem
  4. Blood Sugar and the Brain on Glucose
  5. Rethinking Fat and Cholesterol
  6. BDNF: Growing a Better Brain
  7. Sleep, Hormones, and Hunger
  8. Supplements and Smart Testing
  9. The 4-Week Grain Brain Program

Finish Grain Brain tonight.

Read or listen to the full summary in about 8 minutes, then keep the ideas with a minute of review a day. Start with the 2-minute quiz — no card required.