The Jordan Harbinger Show 1234: Layne Norton | Debunking Diet Soda Panic and Seed Oil Hysteria
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Nov 4, 2025 
Dr. Layne Norton, a nutritional scientist and competitive powerlifter, shares insights on common nutrition myths. He emphasizes that total protein intake is more important than the source, and debunks fears surrounding aspartame and diet sodas. Norton critiques the emotional manipulation in supplement marketing and promotes a nuanced approach to food claims. He also discusses the complexities of fasting, dietary fats, and the impact of aging on metabolism, encouraging listeners to seek evidence over absolutes.
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Protein Dose Over Source
- Total daily protein matters far more than specific sources for muscle growth once you hit ~30–40g per meal.
- Protein source matters more at low doses but becomes irrelevant after the muscle-building signal saturates.
Don’t Use Collagen For Muscle
- Avoid using collagen as your primary muscle-building protein because it's low in essential amino acids and leucine.
- Prefer whey for muscle synthesis and use sunscreen for skin benefits instead of relying on collagen claims.
High Protein ≠ Kidney Damage
- The kidney-damage claim for high-protein diets stems from weak epidemiology and animal data preserved in textbooks.
- Meta-analyses of randomized trials show high-protein diets do not harm healthy kidneys.
