The first fueling and training companion built for cyclists and rowers on semaglutide, tirzepatide, and other GLP-1s. Beat appetite suppression before it beats your season.
No spam. Unsubscribe any time. Not medical advice.
The problem
GLP-1s crush appetite. You skip snacks, skip breakfast, skip your pre-ride bottle — and the deficit adds up fast.
Underfueled rides tank threshold. What felt like Z3 is suddenly Z4, and you can't hold the group past hour two.
Low protein, low carbs, low sleep quality. You lose the medication's benefit because you can't train through it.
How FuelOS helps
Personalized carb and protein targets that account for appetite suppression, not against it. Small, frequent, effective.
Enter Saturday's route or erg session — get a bottle-by-bottle, gel-by-gel plan for the ride and the hour after.
Strava rides, Concept2 sessions, glucose, BP, weight, all in one place. See the fueling → performance line in real time.
Ask 'why did I bonk on Sunday' and get a real answer — not generic macros. Trained on the GLP-1 + endurance patterns.
Road, gravel, Zwift, indoor trainer. Strava-native. Power-aware fueling for anything from a 45-min interval session to a 6-hour endurance day.
Concept2 erg imports, on-water sessions, split-based intensity. Fueling that respects 2k pieces AND 90-minute steady state.
Runners, walkers, swimmers, and lifters — you're next. Join the list and tell us which one to build for after cycling and rowing.
"I started this because my own GLP-1 was killing my rides. Nothing existed for endurance athletes on these meds. So we built it."
— Founder, cyclist, GLP-1 user
Questions
Any of them. FuelOS 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.
No. FuelOS 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.
No — but FuelOS 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.
Not yet. Launch is focused on cyclists and rowers so the fueling and pacing logic can be excellent for one crowd. Runners, walkers, and lifters are next — join the list and tell us which one.
The waitlist is free. Pricing is being finalized with early users. Early-access members lock in founding pricing.
Early access is opening in waves through Q1 2026. Waitlist order and sport preference determine your invite slot.
Get on the list. First invites go out in waves — cyclists and rowers first.