Optimal Protein Podcast with Vanessa Spina

S1E804 - The Amino Acid Truth for Fat Loss: Why Protein Labels Are Misleading with Dr. Hans Stein

Published: June 22, 2026

Duration: 1:18:00

In this episode, Vanessa Spina interviews Dr. Hans H. Stein, Professor of Animal Sciences at the University of Illinois Urbana-Champaign, about protein quality, amino acid digestibility, and why "grams of protein" on a label do not always reflect what the body can actually use.

The PSMF Library is officially live 🎉

👉 Check it out here + get 20% off with code VANESSA

. Stein explains why we do not technically need protein — we need digestible indispensable amino acids — and why this matters for muscle protein synthesis, aging, pregnancy, lactation, fat loss, and body recomposition.

They discuss an...