FREE GUIDE · BRAIN HEALTH SERIES
A free 20-page guide from Dr. Austin Perlmutter on what the research really shows about creatine, memory, brain energy and aging, with every claim graded for the strength of its evidence.
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By Austin Perlmutter, MD · New York Times Bestselling Co-Author of Brain Wash · Read by 160,000+ Newsletter Subscribers
Creatine is one of the most-studied supplements in the world, with more than 1,000 peer-reviewed papers. For decades it lived in the gym. Now researchers are asking what it does above the neck.
The answers are fascinating. Some studies are genuinely exciting. Others found no benefit at all. And a few large trials tested big hopes and came up empty. Scroll social media, though, and you’d think creatine is a brain booster for everyone.
I wrote this guide to give you the honest picture: what we know, what’s promising, and where the evidence hasn’t caught up to the marketing.
Austin Perlmutter, MD
of your body’s energy is used by your brain, an organ that’s just 2% of your weight
peer-reviewed studies on creatine
studies cited and linked in the guide
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How creatine powers your brain.
The “phosphocreatine battery,” explained simply.
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Whether it actually reaches the brain.
What brain-imaging studies show.
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The truth about memory.
Who seems to benefit, and who probably won’t notice much.
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The sleep-deprivation studies.
Why creatine may matter most when your brain is running on empty.
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Brain aging and Alzheimer’s.
The first human pilot data and what it can (and can’t) tell us.
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Women and menopause.
An under-studied area with intriguing early findings.
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Where the hope fell short.
What the large Parkinson’s and Huntington’s trials found.
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How to use creatine wisely.
Form, dose, timing, safety, and a simple 6-step blueprint.
Most supplement content tells you everything works. This guide does the opposite. Each chapter ends with an Evidence Check, my honest grade of how strong the science really is, so you can decide for yourself.
STRONG
PROMISING
EARLY
NOT SUPPORTED
EVIDENCE AT A GLANCE
Raises brain creatine
Strong
Protects thinking under sleep loss and stress
Promising
Slows Parkinson’s or Huntington’s disease
Not supported
Yes, we include what didn’t work. That’s the point.
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You’ve heard creatine is “good for the brain” and want to know if that’s true
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You’re thinking about memory and brain health as you get older
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You’re in perimenopause or menopause and curious about the research
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You eat a vegetarian or vegan diet
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You’re running on too little sleep (new parents, we see you)
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You’re tired of supplement hype and want a doctor’s straight answer
Cover
20 pages, beautifully designed
Page 15
Every claim graded at a glance
Page 17
A simple 6-step plan

Austin Perlmutter, MD, is a physician and brain health researcher focused on how lifestyle and environment shape the brain. He is the New York Times bestselling co-author of Brain Wash and the author of Stain-Proof Your Brain. Through the Better Brain Update newsletter, read by more than 160,000 people, he translates the latest brain science into practical, evidence-based guidance without the hype.
Is the guide really free?
Yes. Enter your email and you’ll get instant access to the PDF.
Who is this guide for?
Anyone curious about creatine and brain health, especially adults thinking about brain aging, women in midlife, plant-based eaters and anyone short on sleep.
Do I have to take creatine to get value from this?
Not at all. The guide is about understanding the science, including when creatine probably isn’t worth it for you.
Is this medical advice?
No. It’s educational. Always talk with your healthcare provider before starting any supplement.
What else will I get?
The Better Brain Update, my free newsletter with the latest brain health science. Unsubscribe anytime.

20 pages. 35 linked studies. No hype.
This guide is for educational purposes only and is not medical advice. Statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement. © 2026 Austin Perlmutter MD, LLC.