In this in-depth episode of The Dr. Gabrielle Lyon Show, Dr. Lyon sits down with her mentor, Dr. Donald Layman—one of the world’s leading experts in protein metabolism—to confront widespread confusion around protein intake. Together, they respond to a viral Huberman Lab clip featuring Dr. Christopher Gardner, offering a critical scientific counterpoint to the mainstream protein narrative.

Dr. Layman explains why the Recommended Dietary Allowance (RDA) is based on outdated nitrogen balance studies and why it represents a bare minimum—not an optimal target—for health. They explore how protein influences metabolism, why fears around “excess” protein are misplaced, and how grain-heavy diets can leave people functionally protein deficient despite meeting calorie needs.

This episode cuts through nutrition dogma to clarify what the science actually says about protein, amino acids, and metabolic health. Whether you’re an athlete, clinician, or simply trying to eat better, this conversation provides a clear, evidence-based framework for understanding why a protein-conscious approach is essential for long-term health and resilience.