GLP-1 Providers Ranked by Muscle Preservation Support

New ENDO 2026 data reveals GLP-1 users are exercising less, not more. Which providers actually help you preserve muscle while losing fat?

The Problem: Weight Loss Without Fitness

Research presented at ENDO 2026 in Chicago dropped a concerning finding: adults on GLP-1 medications walked 560 fewer steps per day and reduced moderate-to-vigorous physical activity by nearly 6 minutes daily after starting treatment. The decline was largest in men and people with joint or muscle pain.

This matters because GLP-1 medications don't just reduce fat — they reduce lean muscle mass too. Research estimates that 20–40% of GLP-1 weight loss comes from lean tissue rather than fat. Without structured exercise, particularly resistance training, patients risk losing the functional strength they need for long-term health.

The implication for provider selection is straightforward: the best GLP-1 program isn't just the cheapest one. It's the one that actually helps you maintain physical activity and preserve muscle during treatment. Here's how providers stack up.

What Muscle-Preservation Support Looks Like

We evaluated providers across five criteria: structured exercise guidance (not just "stay active"), protein intake recommendations, body composition tracking (beyond scale weight), check-in frequency for activity monitoring, and access to fitness or nutritional coaching.

Tier 1: Comprehensive Support

These providers integrate exercise and nutrition guidance into their GLP-1 programs as core components, not afterthoughts.

Bodybuilding.com GLP-1 & Longevity brings the most established fitness infrastructure of any GLP-1 provider. Their program integrates medication management with exercise programming and nutritional guidance from a platform that has spent decades in the fitness space. For patients who prioritize body composition over pure weight loss, this combination is uniquely positioned.

Found Health takes a multi-modal approach that pairs GLP-1 medication with behavioral coaching, including activity guidance. Their program emphasizes sustainable lifestyle changes alongside pharmacotherapy, which directly addresses the exercise decline identified in the ENDO research.

Tier 2: Good Guidance

These providers include exercise recommendations and nutritional guidance but primarily as supplementary content rather than integrated program components.

Tier 3: Medication-Focused

Most telehealth GLP-1 providers fall here. They prescribe effectively and monitor for side effects, but exercise guidance is generic ("stay active, eat protein") rather than structured.

This isn't necessarily a problem for patients who already have established fitness routines. But for the majority of GLP-1 users — many of whom are starting from a sedentary baseline — generic guidance isn't enough to counteract the activity decline the ENDO data reveals.

What You Should Look For

Regardless of which provider you choose, the ENDO 2026 findings suggest that self-managing exercise on GLP-1 medication requires deliberate effort. The appetite suppression that makes these drugs effective also reduces the caloric drive that typically fuels workouts.

Minimum thresholds to protect lean mass during GLP-1 treatment, based on current research: resistance training at least twice per week, protein intake of 1.0–1.2 grams per kilogram of body weight daily, and a daily step target of at least 7,000 steps (which may require scheduling walks rather than relying on natural movement).

If your current provider doesn't discuss these factors at check-ins, consider supplementing with a trainer or nutritionist who understands the pharmacology of GLP-1 treatment. The cost of adding external coaching ($50–200/month) is trivial compared to the long-term health cost of losing significant muscle mass during weight loss.