Optimal Protein Podcast with Vanessa Spina

S1E805 - PSMF SERIES: PSMF Explained—Burn Fat, Stay Full & Preserve Lean Mass with Dr. David Jockers

Published: June 26, 2026

Duration: 1:09:28

Protein-sparing modified fasting (PSMF) has been used for decades as one of the most effective evidence-based approaches for rapid fat loss while preserving lean muscle. But how does it actually work, and who is it best suited for?

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In this episode, Vanessa sits down with returning guest Dr. David Jockers to explore the science behind PSMF, why prioritizing protein changes everything during a calorie deficit, and how this approach differs from traditional fasting, keto, and fasting-mimicking diets.

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