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The School of Greatness

The Truth About Muscle, Protein, and Living Longer | Dr. Gabrielle Lyon

1 tim 17 min12 juni 2026

You're not over-fat. You're under-muscled.

That single reframe changes how you think about your weight, your energy, and how well you'll age.

Dr. Gabrielle Lyon, a fellowship-trained geriatrician and the founder of muscle-centric medicine, has spent her career arguing that we've fixated on the wrong organ. Obesity, insulin resistance, even cognitive decline don't start where you think. They start in your muscle.

She breaks down why muscle is your metabolic currency, your body armor, and the closest thing we have to a longevity drug. And why the protein advice most people follow was set during wartime rationing, not built for the life you're trying to live.

The hard part isn't the science. It's that the changes stay subtle until one day they're not.

This conversation will make you rethink every plate of food and every workout you skip.

Forever Strong: A New, Science-Based Strategy for Aging Well

Dr. Lyon on Instagram

Dr. Lyon on YouTube

DrGabrielleLyon.com

In this episode you will:

  • Discover why your muscle, not your body fat, is the real driver of metabolic health and survival
  • Learn the leucine meal threshold and the protein number to hit at your first meal
  • Understand anabolic resistance and why you need more protein, not less, as you age
  • Uncover where the 0.8g/kg protein guideline actually came from and why it falls short
  • Rethink cardio versus resistance training and build a plan that protects muscle for life

For more information go to https://lewishowes.com/1940

For more Greatness text PODCAST to +1 (614) 350-3960

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TOPICS

muscle-centric medicine, skeletal muscle, protein and longevity, leucine threshold, anabolic resistance, sarcopenia, insulin resistance, healthy aging, Dr. Gabrielle Lyon

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