Why Lean-Mass Loss Is Not Identical to Muscle Loss
Moore argues that reports of GLP-1-related muscle loss need more nuance because lean mass includes multiple non-fat tissues and because severe calorie restriction itself reduces lean tissue. She also proposes that reduced fat infiltration can change measured muscle size. Her interpretation does not remove the clinical concern, which is why she emphasizes resistance training and adequate nutrition.
- Lean mass is broader than skeletal muscle
- Severe calorie restriction can reduce lean tissue regardless of method
- Moore distinguishes healthier muscle from fat-infiltrated muscle
- She attributes wasting primarily to calorie restriction rather than a direct drug effect
- Muscle preservation remains a priority during treatment
“Lean mass is all the soft tissue in your body.”
“It's the caloric restriction that's causing the wasting.”