On a GLP-1?
Don’t give up your performance.
Signal GLP helps athletes fuel, train and recover around the realities of GLP-1 medication.
See inside the appLess hunger doesn’t mean less fueling matters.
When appetite and intake drop, meeting the needs of your training takes a different plan.
Inside Signal GLP
Your training. Your fuel. Your GLP-1. One place.
Know what today needs.
Fuel the work.
Your appetite changed. Your training didn't. Signal GLP™ fuels the work on GLP-1s.
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Today isn't every day.
Signal adjusts your target to the work.
+60g carbs
221g carbs
Base covers the athlete. Fuel covers the work.
Same athlete. Different work. Different answer.
Signal understands the difference between simply exercising and training that needs more fuel.
Built for athletes who still want to perform.
The problem
GLP-1s change the equation. Your training still demands an answer.
You stop eating enough
GLP-1s suppress hunger. Skipped meals, skipped snacks, skipped pre-session fuel — the deficit adds up fast and training quality suffers.
You lose more than fat
Rapid loss without enough protein and hard training takes lean mass with it. Strength, speed and output go with it — whatever your sport.
You don't bounce back
Low protein, low carbs, and poor sleep quality stretch recovery across days. You lose the medication's benefit because you can't train through it.
The evidence
We show our work.
Every number on this page is sourced. If we can't cite it, we don't print it — including the GLP-1 research behind how we fuel. Click any citation and read the paper yourself.
of the weight lost on semaglutide 2.4 mg came from lean mass in the STEP 1 body-composition substudy — muscle goes out the door with the fat unless you defend it.
Wilding et al., NEJM 2021 (STEP 1) ↗per day (about 0.73 g per pound) is where added protein stops improving lean-mass retention alongside resistance training — the target Signal GLP™ builds your day around.
Morton et al., Br J Sports Med 2018 meta-analysis ↗of carbohydrate per hour is the range studied for endurance efforts of one to two-and-a-half hours, rising toward 90 g/hr with multiple transportable carbs on longer days. That's the published research, not your prescription — your Coach starts from your session, your data and your gut.
Jeukendrup, Sports Medicine 2014 ↗mean body-weight reduction at 72 weeks on tirzepatide 15 mg. The faster the loss, the more deliberate your fueling and lifting have to be.
Jastreboff et al., NEJM 2022 (SURMOUNT-1) ↗How Signal GLP™ helps
Built for athletes.
Not weight-loss dashboards.
GLP-1-aware fueling
Personalized carb and protein targets that account for appetite suppression, not against it. Small, frequent, effective.
Session fuel plans
Tell it about Saturday's ride, erg, long run or lifting session — get a plan for before, during, and the hour after.
Training + biometrics context
Strava rides, Concept2 sessions, runs, lifts, glucose, BP, weight, all in one place. See the fueling → performance line in real time.
A Coach that learns what works for you
Plan the work. Do it. Tell Signal what happened. Your Coach learns from your training, tests what it thinks it knows, and adapts what comes next.
Meet your coaches
Choose a sport-specific coach for cycling, running, rowing, strength, swimming, or hybrid training. Each one understands the demands of your sport and the challenges of performing on a GLP-1 — and each one works from your current numbers, your training history and what you told it about the last session.
No generic AI chatbot. A Coach that knows your sport and learns from you.
The Signal Loop™
Ride planning is the deepest today: cycling has the full pre-session plan. Other disciplines join the loop at the session itself — train, report what happened, and your Coach adapts what comes next.
The actual app
No mockups. Real screens, real data.
These are unedited screenshots from a live Signal GLP™ account — real GLP-1 fuel plans, daily targets, and coach sessions, the same screens you get on day one.
Today
Training
Running
Cycling
Sport specialized coach
Fuel
Health
TrendsOpen to everyone
Free calculators and guides. No account needed.
Get the numbers for free. The membership is what turns those numbers into a day you can actually execute, tracked over time.
John Hooper
Founder · cyclist · on a GLP-1
Who built this
Still an athlete.
“I'm still taking a GLP-1. And I'm still getting better on the bike.”
I built Signal GLP because losing weight wasn't enough. I wanted to keep training, fueling and improving.
John Hooper · Founder, Signal GLP™
NASM Certified Sports Nutrition Coach
CSNC · National Academy of Sports Medicine
Certified through September 2028
Scope & limits
What Signal GLP™ is — and what it will never do.
You are on a prescribed medication managed by a clinician. Signal GLP™ works on the other side of that line: fuel, training, and the numbers you generate. We would rather be blunt about the boundary than vague about it.
What it does
- Tracks what you eat and drink, and turns it into protein, carb, fiber, sodium, and hydration targets.
- Plans fueling around the training you actually do — rides, ergs, runs, lifts, swims, walks.
- Watches trends across weight, body composition, blood pressure, and glucose that you log or sync.
- Sport specialized coach that reads your logs, your training, and what you reported after past sessions.
What it does not do
- Prescribe, dose, titrate, or advise on changing any medication.
- Diagnose, treat, or interpret a medical condition or lab result.
- Replace your prescriber, dietitian, or physician — or talk to them for you.
- Function as a medical device or a regulated clinical tool.
Signal GLP™ is not medical advice and carries no clinical endorsement. Always consult your clinician before changing medication, nutrition, or training. How your health data is handled →
Memberships
Choose your membership.
Full access on every plan. Every membership includes the complete GLP-1 fueling system. Founding Athlete pricing (web only) is the lowest price we will offer.
Monthly
$19.99Full access to the Signal training app and metabolic tracking engine. Cancel anytime.
- Every screen in the app — nothing is held back on any plan
- One-tap fuel favorites, label scanning, and AI macro estimates
- Full discipline experiences for cycling, running, rowing, strength, swimming and hybrid
- Sport specialized coach that learns from your own reported sessions
- Biometrics, body composition, and 80-day trends
- Strava, Concept2, and scale/BP sync
Full membership · cancel anytime
Annual
$149Complete metabolic suite, custom fueling plans, and yearly performance review.
- Every screen in the app — nothing is held back on any plan
- One-tap fuel favorites, label scanning, and AI macro estimates
- Full discipline experiences for cycling, running, rowing, strength, swimming and hybrid
- Sport specialized coach that learns from your own reported sessions
- Biometrics, body composition, and 80-day trends
- Strava, Concept2, and scale/BP sync
Full membership · cancel anytime
Founding Athlete
$99Web-only launch-window price for athletes joining early. Same full membership, lowest price.
- Every screen in the app — nothing is held back on any plan
- One-tap fuel favorites, label scanning, and AI macro estimates
- Full discipline experiences for cycling, running, rowing, strength, swimming and hybrid
- Sport specialized coach that learns from your own reported sessions
- Biometrics, body composition, and 80-day trends
- Strava, Concept2, and scale/BP sync
Full membership · cancel anytime
Full terms in our refund policy and data handling pages.
Not ready to join?
Get the GLP-1 fueling brief.
One short email every couple of weeks: protein and electrolyte targets, what the research actually says, and what we are shipping. Your first one — with starting numbers for your sport — lands immediately. No spam, unsubscribe in one click.
FAQ
Common questions.
Built for athletes on Ozempic®, Wegovy®, Mounjaro®, Zepbound®, Saxenda®, Victoza®, Trulicity®, Rybelsus®, or compounded semaglutide or tirzepatide.
Which GLP-1s does this work with?
Any of them. Signal GLP™ is designed around the appetite-suppression pattern common to semaglutide (Wegovy, Ozempic), tirzepatide (Mounjaro, Zepbound), and liraglutide. It is not tied to a specific medication or dose.
Is Signal GLP medical advice?
No. Signal GLP™ is a fueling and training companion — not a prescriber, not a doctor, not medical advice. It helps you eat and train intelligently around a medication your clinician manages.
Do I need a power meter or Concept2?
No — but Signal GLP™ gets sharper if you have one. It integrates with Strava, imports Concept2 erg sessions, and can log rides manually if you don't ride with power.
I run / lift / swim instead. Is this for me?
Yes. Cycling, running, rowing, strength, swimming and hybrid training each get their own full experience in Signal GLP™ — session planning, fueling, logging and a specialist coach. Walking, yoga and other activities stay lightweight: duration and effort, and the coach fuels you off it.
What does it cost?
Signal GLP™ is $19.99/month, $149/year, or $99 for the first year as a Founding Athlete (web only — the $99 founding price is exclusive to signing up on the web). Every membership includes full access. Annual plans save the most. Existing early users are grandfathered.
What happens if I stop taking my GLP-1?
That decision belongs to you and your prescriber — we would never tell you to start, stop, or change a medication. What we do is keep your fueling matched to whatever you and your clinician decide, at any dose or off a GLP-1 entirely.
Is Signal GLP live now?
Yes — Signal GLP™ is live today. Choose a membership, create your account, and start logging fuel, training, and biometrics immediately. No waitlist.