Body recomposition on Wegovy: a strength training framework for fat-loss-without-muscle-loss

Body recomposition — losing fat while building or holding muscle — is the goal that the muscle-preservation playbook on Wegovy was built for. The mechanics are not exotic. Adequate protein, progressive resistance training, body-composition measurement on a meaningful cadence, and patience. What's specific to Wegovy (and to GLP-1s in general) is the calorie and appetite environment in which all of this happens. The medication suppresses appetite hard enough that the deficit happens whether you plan for it or not — which is exactly when the protein-and-training piece becomes load-bearing rather than optional.

What recomposition actually means on a GLP-1

On a GLP-1 you are nearly always in a calorie deficit. That makes "true recomposition" — gaining lean mass while losing fat — harder than in a normal weight-loss phase, but not impossible. For most Wegovy users the realistic goal is closer to "minimise muscle loss while losing fat" with periods of genuine recomposition during dose plateaus and at maintenance dose. The data on this — body composition arms of SURMOUNT and STEP — supports the framing: with structured training and adequate protein, lean mass loss as a fraction of total weight loss drops from 25-40% to under 10% in many users.

Protein, exactly

1.2 to 1.6 grams per kilogram of body weight per day. That is the upper end of normal-population recommendation and the lower end of competitive-physique recommendation. For most Wegovy users (BMI > 27, average bodyweight 80-100 kg), this means 100 to 160 g of protein daily. Distributed across three or four meals at 25-40 g per meal.

The protein piece is covered in detail in the protein playbook — sources, timing, satiety hacks for the food blankness Wegovy produces.

Resistance training that actually preserves and builds

Two to four sessions per week, full body, progressive overload. The architecture that hits all major muscle groups in the minimum effective dose:

• Squat or leg press — quads, glutes, lower body
• Deadlift or hip hinge variant — posterior chain, hamstrings, glutes, lower back
• Bench press or push-up progression — chest, anterior shoulder, triceps
• Row or pull-up progression — upper back, lats, biceps
• Overhead press — shoulders, triceps

10 to 20 hard sets per muscle group per week is the volume range. RPE 7-9 on most sets (two to three reps shy of failure). Progressive overload — add a rep, add a kilo, add a set every week or two. Cardio is fine for cardiovascular health, but the recomp engine is the resistance work.

DEXA cadence and what it actually tells you

DEXA (dual-energy X-ray absorptiometry) is the gold-standard body composition measurement available outside research settings. The lean mass and fat mass numbers it produces are accurate to within 2-3%. The cadence that gives signal without noise: a baseline scan in the first two weeks of Wegovy, then a follow-up every 12 weeks while losing, then every 6 months once at maintenance.

Cheaper alternatives have their place. The waist-and-hip tape measurement, weekly, is the best zero-cost proxy for fat-loss-versus-muscle-loss. Bioelectrical impedance scales (the home body-composition kind) are noisy day to day but useful for the multi-week trend. Skinfold callipers with a competent tester are roughly as accurate as DEXA at significantly lower cost. Muscle Guard tracks all of these in the body composition module — DEXA in particular has its own input row for when you have one done.

Recomp during dose plateaus

The most underrated recomposition opportunity on Wegovy is the dose plateau. When the dose holds for 4 to 8 weeks (often during titration steps), appetite normalises slightly. This is the window where a slight protein push and a focused training cycle can produce visible composition change. The Personal Coach reads dose plateaus from your medication log and surfaces this prompt automatically. The Muscle Guard Score tends to rise during plateaus when training and protein are dialled — a useful signal that the recomp window is real.

Patience and the 12-week loop

Body composition changes are slow. Recomp on Wegovy at 12 weeks looks meaningful; at 4 weeks looks like nothing. Most Wegovy users underestimate how much time the visible change requires — typical timelines show meaningful waist circumference shift around week 8, visible composition shift around week 12, photograph-difference around week 16. The Doctor PDF presents the 12-week composition trend exactly because that's the timescale on which the trend becomes legible.

Frequently asked questions

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