Understand the source comparison
How much of GLP-1 weight loss is fat versus muscle?
Both are lost, but fat preferentially. Across incretin studies, lean mass accounts for roughly 20–40% of total weight lost, while fat makes up the majority, so the proportion of lean mass to total mass usually rises.68 This is why serious trials use DXA rather
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Both are lost, but fat preferentially. Across incretin studies, lean mass accounts for roughly 20–40% of total weight lost, while fat makes up the majority, so the proportion of lean mass to total mass usually rises.68 This is why serious trials use DXA rather than the scale, and why preserving muscle with resistance training and adequate protein is an active clinical focus.27 A photograph cannot distinguish fat loss from muscle or water loss at all.