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Sigma Nutrition Radio

#578: Creatine For Brain Health: Overhyped Trend or Science-based Intervention? – Prof. Eric Rawson

Sigma Nutrition Radio

Danny Lennon

Health & Fitness, Nutrition

4.8 • 633 Ratings

🗓️ 30 September 2025

⏱️ 52 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

Creatine is best known as a sports supplement for enhancing muscle strength and high-intensity performance. But could it also improve brain health and cognitive function? Or are such claims overhyped?

If creatine can support brain health, it could have implications for aging, neurodegenerative diseases, concussion recovery, and mental fatigue.

In this podcast episode, Professor Eric Rawson discusses what current science says about creatine's effects on the brain, including memory, executive function, and protection against neurological stress.

Professor Rawson provides context on how creatine works in the body, why the brain might benefit, and what evidence exists so far.

Eric Rawson, PhD is Professor and Chair in the Department of Health, Nutrition & Exercise Science at Messiah University. For over twenty years, his research has centered on the interplay between nutrition and skeletal muscle, notably investigating how creatine supplementation affects both muscle and brain function.

Timestamps

  • [03:14] Understanding creatine: biochemistry and history
  • [07:55] Creatine supplementation and muscle performance
  • [09:35] Creatine and brain health: emerging research
  • [14:03] Measuring brain creatine: challenges and techniques
  • [19:58] Cognitive benefits of creatine supplementation
  • [26:23] Evaluating the evidence: caution and promise
  • [30:45] Mega dosing and brain health protocols
  • [32:04] Creatine for brain health: context matters
  • [38:54] Creatine for brain injury and aging
  • [51:25] Key ideas segment (Premium-only)

Related Resources

Transcript

Click on a timestamp to play from that location

0:00.0

Hello and welcome to Sigma Nutrition Radio. This is episode 578 of the podcast. My name is Danny Lennon and you are very welcome to the show.

0:10.1

Today we're going to be talking all about creatine and while this is a typically referred to in the context of being a supplement for enhancing muscular strength or high intensity performance. A lot of the conversations

0:22.3

recently have been around potential benefits for the brain, whether that's going from acute

0:27.8

changes in cognition to long-term outcomes like reduction of neurological diseases. And so in order

0:35.0

to try and broach this topic today, we're going to be focusing in

0:38.3

specifically on those claims around brain health. And I'm going to be talking with Professor

0:42.7

Eric Rawson, who is perhaps one of the people who has done the most amount of research on

0:48.6

creatine for many, many years. A lot of that on that traditional interplay between creatine and skeletal muscle, but has now been

0:57.2

looking at some of those potential effects related to the brain.

1:01.2

So we're going to walk through where these particular mechanisms of actions might come in,

1:06.2

what evidence we currently have to date, how that compares with various claims we're now seeing around

1:11.9

what we do and don't know about creatine, and then hopefully by the end you have a better

1:16.7

idea of where the evidence actually lies in relation to creatine and the potential roles

1:22.5

for various aspects of brain health. Remember, if you are a Sigma Nutrition premium subscriber,

1:29.0

of course, you will be getting a key ideas segment to round up everything after this episode

1:34.3

finishes. You'll also get access to detailed study notes to go back through all the content

1:39.3

or into more detail on some of the concepts that were raised, as well as explanations, definitions,

1:45.3

diagrams for all this content to not only make more sense, but that you can actually retain

1:49.5

more of that afterwards.

1:51.4

So if you are listening on the public feed of the podcast and you might be interested in getting

1:55.9

some of the extra additional educational materials that come along with being a premium subscriber,

2:01.9

then all the details around that will be linked in the description box where you're currently

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