Up to 40% of the weight people lose on GLP-1s is muscle, not fat. Here's why that matters — and the specific approach to protect it.
Studies on GLP-1 weight loss show 25-40% of the weight lost is lean mass — muscle, not fat. This is higher than most diet-based weight loss.
Less muscle means lower metabolism, weaker strength, easier regain. Lose muscle on the drug, regain as fat when you stop — the worst outcome.
Muscle loss during rapid weight loss is a known phenomenon. GLP-1s amplify it because appetite drops so hard that most users don't eat enough protein.
Protein. Resistance exercise. Enough calories. That's it. No hack, no supplement replaces these three.
Minimum 0.7g per pound of goal body weight (e.g. 150lb goal = 105g protein/day). Higher is better while on GLP-1.
30-35g per meal is the sweet spot for muscle protein synthesis. One big protein meal won't do the same work.
Even bodyweight or light weights. Muscle needs a stimulus to stay. Cardio alone doesn't protect it.
Extreme deficits accelerate muscle loss. If you're losing more than 1% body weight per week, you're eating too little.
The #1 mistake: as appetite falls, people drop to 40-50g protein/day. Set a protein target and hit it even when you're not hungry.
Finally Fit builds a personalized protein and habit plan around your eating profile. Whether you're on a GLP-1 or coming off one, the plan adapts.
Take the free quizThis is educational content, not medical advice. Talk to your doctor before changing your protein intake, exercise routine, or medication plan.