How important is resistance training on GLP-1?
Resistance training is one of the most effective levers for protecting lean mass during GLP-1 weight loss. Two to four sessions a week, hitting major muscle groups (legs, back, chest, shoulders, arms), with progressive overload over time, covers what the research consistently shows. The exact program matters less than consistency. Cardio is good for cardiovascular health, but it does not build or protect muscle the way lifting does, and on a GLP-1 cardio without lifting tends to leave more lean mass on the table. Two 45-minute strength sessions a week is a reasonable floor; three to four full-body sessions is closer to optimal. People who lift consistently usually hold lean mass scan to scan. Always check with your doctor before starting a new training program.
Phaze Guides
Read the full guide on DEXA and body composition for GLP-1
What DEXA measures, how often to scan, and the habits that help protect lean mass while you lose weight.
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Track every scan. Watch fat and muscle, not just weight.
Phaze is a wellness and habit-tracking app, not a medical device, and does not provide medical advice. Talk to your doctor.