GLP Fitness
Muscle is the metric.Strong through every pound down.
A mobile-first strength and muscle-preservation program for people using GLP-1 weight-loss medications. Built around resistance training, protein consistency, and progress tracking while your body changes.
$5/mo · 14-day money-back
GLP-1 doesn’t protect your muscle.
The drug works. But it doesn’t protect what matters. A meaningful share of what you’re losing isn’t fat — and most people don’t notice until it’s already happened.
A trainer-designed adaptive strength program, in a mobile-first app, built specifically for GLP-1 users.
GLP-1 works. But it doesn’t protect your muscle.
And that changes what “weight loss” actually means.
of weight lost is lean mass.
STEP 1 — NEJM, 2021 · updated in 2024 systematic reviews
of weight lost is lean mass.
SURMOUNT-1 DXA substudy — DOM, 2025
of weight loss was lean mass.
Dubin et al. — DOM, 2024
When people stop the drug, the fat comes back. The muscle doesn’t.
One-year follow-up of STEP 1 participants who discontinued semaglutide: roughly two-thirds of the lost weight returned — disproportionately as fat. Net body composition was worse than before.
STEP 1 Extension — DOM, 2022
Resistance training. Paired with the drug, it’s the only intervention shown to hold weight loss and lean mass at one year.
In a randomized trial, participants who added structured resistance training to their GLP-1 protocol were the only group that maintained both the fat loss and lean mass at 12 months.
Lundgren et al., NEJM 2021 · Jensen et al., EClinicalMedicine 2024
Muscle preservation is no longer optional — it’s guidance. The 2025 joint statement from ACLM, ASN, OMA, and TOS explicitly calls for interventions that “preserve muscle mass.” AACE 2025 and ACSM 2024 both prescribe resistance training 2–3× per week for anyone on these drugs.
The takeaway is simple:Losing weight is common. Keeping strength is not.
Appetite’s down today — day 2 curve. Upper, 35 min. 3 working sets, stop with two reps left in the tank.
It already knows what today should be.
Open it on your phone, check in, and today’s session is already there — one plan built around what your body actually did this week.
Your plan adjusts before you think to.
Three loops, one program. Your week rebalances around what your body actually did, instead of holding you to a template written six weeks ago.
Signals that matter
Injection day, appetite, energy, sleep, what you actually completed — not heart-rate noise.
- Injection timing
- Appetite & protein window
- Energy + recovery
- Completed volume
Today's plan, built today
Heavy lands on best days. Compression on bad days. Missed sessions rebalance — they don't reset.
- Strength-first programming
- Minimum-viable sessions
- Volume scaled to recovery
- Week compression, not restart
Strength is the number we track
The scale is a by-product. The number we follow week to week is strength, because that's what you're trying to keep.
- Top-set trend
- Weekly retention %
- Injection-cycle pattern
- Weekly strength report
Most programs adjust after you fail.GLP Fitness adjusts before you do.
Some days the body’s at 40%.
The plan already knows.
Heavy moves off today. Volume compresses. Upper-body neural work lands instead. You don’t explain — it’s already done.
Your body isn’t consistent.
Your plan shouldn’t pretend it is.
- Fixed weekly plans
- Ignore medication effects
- Restart when you miss workouts
- Focus on calories or scale weight
- Generic programming, no trainer behind it
- Adapts daily to your body
- Built for GLP-1 injection cycles
- Compresses weeks instead of restarting
- Strength is the primary signal
- Every progression written by a NASM-CPT
Adapts daily to your bodyDesigned by a certified personal trainer.
Demitry Davidson, a NASM-Certified Personal Trainer, wrote this program himself: the progressions, the injection-cycle logic, and the standards every session is held to.
Strength holds.
The scale drops.
The goal isn’t the scale. It’s what’s left when the scale stops moving. Strength retention is the signal we program against — the one that tells you whether you’re keeping what matters.
Illustrative 12-week trajectory — the pattern muscle preservation produces when resistance training is programmed around GLP-1 cycles. Individual results vary.
You’re already spending $300–$1,300 a month to lose weight.
This is built to help you hold onto muscle while you do.
One membership. Full program access, the whole muscle-preservation approach, and every update. Cancel anytime.
Start training14-day money-back guarantee · Cancel anytime
- Daily adaptive training, built around today
- Injection-cycle awareness, not generic templates
- Trainer-designed by a NASM-CPT — built for GLP-1 users
- Weekly strength retention report
Common questions.
Short answers. More in your onboarding.
What if I'm inconsistent?
That's exactly who this is for. Your plan adjusts around missed days instead of resetting.
What if I feel too tired to train?
You won't always get a full workout. You'll get the right workout for that day — sometimes a 15-minute priority lift, sometimes recovery.
Do I need a full gym?
No. Plans adapt to your equipment — home setup, hotel room, or commercial gym.
Is this medical advice?
No. GLP Fitness adapts training. Your prescriber owns the medical relationship and dose decisions.
Do you track calories?
No — on purpose. Strength is the primary signal. Protein timing is the only nutrition guidance.
How private is my data?
Your data is yours. We never sell it, never share with advertisers. You can export or delete it any time.
Can I cancel anytime?
Yes. No contracts. 14-day money-back guarantee on your first payment.
Losing weight on GLP-1 is easy.
Keeping your strength isn’t.
GLP Fitness is designed to help you keep it.
$5/mo · 14-day money-back · Cancel anytime