Low calorie protein shakes: How to keep muscle while cutting fat
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Dec 17, 2025 · 11 min read
Low calorie protein shakes can help preserve lean mass during a cut by delivering essential amino acids (especially leucine) that stimulate muscle protein synthesis and support a positive nitrogen balance even in a calorie deficit; most lean, resistance-trained men need about 1.6–2.4 g/kg/day of protein to minimize muscle loss. Here’s how to use shakes to ...