Training Science Podcast

Desolving the Fat Mystery – Are Carbs History? - With Dr Phil Maffetone, Prof Tim Noakes & Prof Paul Laursen

Jun 6, 2025
Join experts Tim Noakes, a sports science pioneer, and Phil Maffetone, a doctor focusing on heart rate training, as they challenge conventional carb-centric dieting for athletes. They discuss how fat oxidation fuels endurance when carbs deplete. Dive into the critical role of the brain in setting limits and the dangers of insulin and sugar addiction in modern diets. Unpack the shifting understanding of nutritional needs, emphasizing that low-carb, high-fat diets could redefine athletic performance and health.
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ANECDOTE

Early Marathon Heart Research

  • Tim Noakes began researching marathon runners' heart health after observing unexpected cardiac issues.
  • He personally investigated for deaths among marathoners to challenge existing beliefs about athlete immunity to coronary artery disease.
INSIGHT

Early Fat Oxidation Insight

  • Phil Maffetone questioned the glucose-centric view early by focusing on fat oxidation and aerobic training.
  • He experimented with athletes to reduce refined carbohydrate intake, improving their performance at similar heart rates.
INSIGHT

Fat Oxidation Powers Ironman

  • Tim Noakes realized Ironman performance relies heavily on fat oxidation, not just carbohydrate.
  • After adopting low-carb himself, his performance dramatically improved, illustrating fat's critical role in endurance.
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