The Truth About Protein Timing and Aging | Donald Layman PhD

**Dr. Gabrielle Lyon** (0:02)
Welcome to The Dr. Gabrielle Lyon Show, where I believe a healthy world is based on transparent conversations.
You Welcome to The Dr. Gabrielle Lyon Show. This is a very special episode. I sit down in person with Dr. Donald Layman. He is Professor Emeritus in the Department of Food Science and Human Nutrition at the University of Illinois, Urbana-Champaign. Dr. Layman served on the faculty at the University of Illinois from 1977 to 2012
He has been a leader in research about protein nutrition for athletic performance, obesity, diabetes, and cardiovascular health for decades. He has over 100 peer-reviewed publications. He has received numerous awards for his research from the American Society for Nutrition and the National Institutes for Health, among other things. He served as the Associate Editor of the Journal of Nutrition and the Journal of Nutrition Education and Behavior on the editorial boards of Nutrition and Metabolism and Nutrition Research and Practice. Dr. Layman has an extensive background and, most importantly, he has been my mentor of 20 years. This episode is something special, and if you love it, please be on the lookout for our teaching course on all things muscle-centric medicine.
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Dr. Donald Layman, nice to see you again. Welcome to The Dr. Gabrielle Lyon Show. You're, I would say, a veteran at this show.

**Dr. Donald Layman** (4:40)
Yeah, but finally get to do it in person. We can sit across a table and look at each other.

**Dr. Gabrielle Lyon** (4:45)
Yes. We have spent, funny enough, at least 20 years talking about protein, muscle, and all things. Go figure.
But today, I thought it would be really valuable. Number one, I had to learn something, at least two new things, if we were going to podcast. And I've already learned a handful of new things, which I'm really excited to share. The other key component to what we're going to be talking about today is protein distribution. This has gotten a lot of attention lately. I would say that you're in part a- To blame. You are somewhat to blame for the whole protein distribution and for the listener. What do we mean when we talk about dietary protein distribution?
We know that protein is made up of 20 different amino acids and you must get protein from the diet. And not all protein is created equal and each individual amino acid, they all do various things. The overall amount in a 24-hour period is crucial.
The next layer to that is the distribution and the distribution really depends the meaning of that or how much influence and impact that is going to have is really based on a few things. And number one, that would be age. So why don't you kick off a little bit about the foundation of where some of this distribution conversation came from and where we are now.