Optimal Protein Podcast with Vanessa Spina

S1E801 - PSMF SERIES: Protein Sparing Modified Fasting 101: Burn Fat, Preserve Muscle & Break Through Fat Loss Stalls

Published: June 12, 2026

Duration: 49:50

Welcome to the first episode of the Summer Protein Sparing Modified Fasting Series on the Optimal Protein Podcast. In this episode, Vanessa introduces the science, history, and practical application of protein sparing modified fasting, or PSMF, as a powerful tool for fat loss and body recomposition.

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Vanessa explains how PSMF was originally developed to help preserve lean body mass during severe energy restriction, why it differs from water fasting or traditional low-calorie dieting, and how prioritizing protein can help...