<h1>Yeast protein efficacy shown to rival whey for muscle support, offering a sustainable, digestible alternative for fitness and recovery.</h1> Yeast protein, derived from Saccharomyces cerevisiae, matched whey protein in improving lean muscle and strength in a controlled eight week trial; it yielded notable gains in trunk and total lean mass and benefits for diastolic blood pressure and muscular endurance. Its complete essential amino acid profile, high biological value, and digestibility comparable to soy support its use for muscle repair and meal replacement, while eco friendly production positions it as a sustainable alternative to animal proteins. Clinical guidance favors divided daily servings and post workout consumption alongside a balanced diet.