The Primal Podcast Ep 115 - Dr Donald Layman | The Ultimate Protein Guide (How Much You ACTUALLY Need)
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Mar 29, 2025 
Dr. Donald Layman, a PhD researcher and protein metabolism expert, shares his invaluable insights on protein's role in health. Discover why many people, particularly women, fall short on protein intake and the misconceptions surrounding it. He emphasizes the significance of leucine in muscle synthesis and the optimal timing for protein consumption, especially at breakfast. Practical tips for enhancing morning nutrition and the comparison of ribeye steak to whey protein further enrich the discussion, making it a must-listen for anyone serious about their health.
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Leucine's Role in Muscle Protein Synthesis
- The essential amino acid leucine, found in protein, triggers muscle protein synthesis through mTOR.
- After 30, dietary protein quality becomes crucial for this process, unlike in younger individuals.
Protein and Fat Loss
- Higher protein diets during weight loss help preserve lean tissue, especially muscle.
- Combine higher protein with resistance training to minimize muscle loss to under 10%.
Amino Acids and Protein Quality
- There are 20 amino acids, 9 of which are essential and must be obtained through diet.
- Plant-based proteins often lack sufficient essential amino acids, making them less ideal than animal proteins.