
Why Protein Matters During GLP-1 Weight Loss—Especially After 50
During significant weight loss, the body doesn’t lose only fat. Some lean tissue may also be lost. At the same time, aging itself can make maintaining muscle mass and strength more challenging. That’s why protein has become an important part of the conversation surrounding GLP-1 medications, muscle loss, strength training, and healthy weight loss after 50. A 2025 joint advisory from the American College of Lifestyle Medicine, American Society for Nutrition, Obesity Medicine Association, and The Obesity Society specifically identifies adequate dietary protein as a nutritional priority during GLP-1 therapy.


