PSMF SERIES: PSMF Explained—Burn Fat, Stay Full & Preserve Lean Mass with Dr. David Jockers
About this episode
This episode explores the science behind protein-sparing modified fasting (PSMF) and its effectiveness for fat loss while preserving lean muscle.
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? Check out the Protein-Sparing Modified Fasting Library at ketogenicgirl.com and use code VANESSA for 20% off. 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. They discuss ketosis, satiety, autophagy, resistance training, meal structure, protein targets, refeeding strategies, and the lifestyle habits that make rapid fat loss both more effective and more sustainable. If your goal is fat loss without sacrificing muscle, this episode provides a practical, science-backed roadmap to implementing protein-sparing modified fasting safely and effectively. In This Episode What protein-sparing modified fasting (PSMF) is How PSMF differs from fasting, keto, and fasting-mimicking diets Why high protein supports muscle preservation during fat loss…
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