GLP‑1 Atlas

Body & results

Muscle, protein, and what the scale is telling you.

The scale is a poor instrument for this treatment. It reports one number and conceals what that number is made of — and composition is where the outcome that matters actually lives.

Losing 15% of your body weight is a very different event depending on whether the lost mass was mostly fat or substantially muscle. The first improves how your body handles glucose, how you move, and how easily the weight stays off. The second lowers your resting energy expenditure, weakens you, and makes regain easier. These pages cover what determines which one you get, and what to expect along the way.