Dr.Martinez said:There is also a quality change that the scan cannot see.
Genuinely useful, thank you. I had the facts and not the framework.
From the other side of the consultation, briefly.
Physical therapist weighing in on lean mass. I work with bariatric and metabolic patients daily.
The resistance training evidence is critical here:
The Lundgren 2024 JAMA paper[1] showed that structured resistance training preserved 73% more lean mass in GLP-1 patients vs medication alone. When discussing lean mass, we MUST include the exercise component.
My minimum prescription: 3x/week compound movements (squat, deadlift, press, row), progressive overload, 7-10K steps/day, and 1.2-1.6g protein/kg/day.
sophie_paris said:Sharing my comprehensive lab data relevant to lean mass: Biomarker Baseline Month 3 Month 6 Month 9 Weight (lbs) 276 251 216 211 A1C (%) 7.1 6.6 5.7…
Body composition tracking via bioimpedance on lean mass (InBody scan every 3 months):
| Metric | Baseline | Month 3 | Month 6 | Month 9 |
|---|---|---|---|---|
| Skeletal Muscle (lbs) | 74 | 66 | 71 | 72 |
| Body Fat (lbs) | 101 | 82 | 60 | 40 |
| Body Fat % | 40% | 32% | 25% | 22% |
| Visceral Fat (cm²) | 171 | 126 | 91 | 61 |
Note: skeletal muscle mass dipped initially then recovered with consistent resistance training + high protein. The visceral fat reduction is where the metabolic magic happens.
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Shop Reference Standardspete_manc_UK said:The intervention that works is boring and well evidenced: resistance training two to three times a week at a genuine effort, protein at 1.4 to 2.0…
pete_manc_UK said:...the muscle loss concern with lean mass...
This is a legitimate and well-studied concern. Let me put some numbers on it:
In STEP 1, approximately 39% of weight lost was lean mass. However, the Lundgren 2024 study showed that structured resistance training reduced this to ~25% lean mass loss.
Context matters: at BMI 35+, you're carrying excess lean mass to support the extra weight. Losing some lean mass is expected and not inherently harmful if you maintain adequate muscle function through exercise.
The solution isn't avoiding the medication — it's combining it with proper exercise and protein intake.