"Fiber is the new protein. Don't count your protein grams - count your fiber grams. And if you do that, and you're getting adequate calories, you're going to be fine."

What if aging didn't have to mean slowing down, losing strength, or watching your best years slip into the past? What if the mind and body were capable of far more resilience and longevity than we've been led to believe?

In this episode, two powerhouse voices in human performance challenge the idea that physical and cognitive decline are inevitable. Dr. Sharon McDowell-Larsen, physiologist, coach, and plant-based Ironman athlete, returns to the show alongside Dr. Regan A. Stiegmann, a double board-certified physician, former U.S. Air Force Flight Surgeon, and Director of Lifestyle & Performance Medicine at the HealthONE Family Medicine Residency Program.

Together, they are the co-authors of Staying in the Game, a compelling new book that provides a practical framework for sustaining strength, metabolic health, and mental sharpness across the lifespan.

From protein myths and muscle building to the surprising power of fiber, sleep, and meal timing, this conversation reveals what it really takes to keep the body and brain performing at their best.

What we discuss in this episode:

347 - Why Fiber Matters More Than Protein | Dr. Sharon McDowell-Larsen & Dr. Regan Stiegmann