
The Optimal Protein Podcast
PSMF SERIES: Protein Sparing Modified Fasting 101: Burn Fat, Preserve Muscle & Break Through Fat Loss Stalls
New
12 Jun 2026 · 49 min
Protein intakeMuscle growthMetabolism & fasting
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About this episode
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. Check out the Protein-Sparing Modified Fasting Library at ketogenicgirl.com and use code VANESSA for 20% off. Vanessa explains how PSMF was originally developed to help preserve lean body mass during