GLP-1 medications are transforming weight loss — but up to 39% of what patients shed is lean muscle, not fat. SarcoSense tracks exactly what kind of weight you're losing, and alerts your care team before it becomes a problem.
What patients are saying
I've lost 18kg on Wegovy and everyone says I look amazing. But I feel weaker than I did before I started. My grip is weaker, I get winded carrying groceries. The scale is down but something is off and my doctor just tells me to keep going.
r/WegovyWeightLoss · 847 upvotesDown 30 pounds in 5 months, which sounds great on paper. But I look "skinny fat" — I've lost all the muscle tone I used to have. I don't know how much of what I've lost is actual fat versus the muscle I worked years to build.
r/Ozempic · 1.2k upvotesNobody warned me about this. My doctor checks my weight at every visit. She's never once mentioned body composition or lean mass. I had to figure out on my own that GLP-1 drugs can cause significant muscle loss. Why isn't this part of the standard monitoring?
r/Semaglutide · 994 upvotesHow SarcoSense works
At each clinic visit, enter your weight, body fat % from DEXA or bioimpedance, and optional biomarkers — creatinine and IGF-1. Takes under 2 minutes.
SarcoSense separates fat loss from lean mass loss and charts both over time. You'll see exactly what kind of weight you're losing — and at what rate.
Each check-in recalculates your sarcopenia risk — Low, Moderate, or High — based on lean loss ratio, creatinine trend, and IGF-1 levels. Your clinician sees the same score.
GLP-1 patients already tracking their lean mass with SarcoSense
Clinics in 12 cities · Average patient on GLP-1: 14 weeks
The risk score
The SarcoSense risk score is calculated from lean mass loss ratio, creatinine trend, and IGF-1 — three signals that together tell a clinician whether a patient's weight loss is metabolically healthy or putting their muscle at risk.
Lean mass loss is less than 15% of total weight lost. Weight loss is predominantly fat. Continue current protocol.
Lean mass loss is 15–30% of total weight lost. Consider protein intake and resistance training review.
Lean loss >30%, OR creatinine declining for 3+ visits, OR IGF-1 below 100 ng/mL. Clinician follow-up recommended.
Early access
Join 400+ GLP-1 patients getting early access. Free plan available at launch — no card required.
We'll reach out when early access opens. In the meantime, keep tracking — your muscle health matters.