End the Guesswork That's Sabotaging
Your Race Times
Science-backed nutrition plans that keep you strong through every swim, bike, and run.
Triathlon ist nicht nur ein Rennen – es ist ein Test für Ausdauer, Kraft und intelligentes Fueling. Ob du für deinen ersten Sprint-Triathlon trainierst oder auf eine Ironman-Bestzeit hinarbeitest, Ernährung ist die vierte Disziplin, die über deine Leistung entscheidet. Bei Fuelin.com erhältst du wissenschaftlich fundierte, personalisierte Ernährungspläne, um dich bei jedem Schwimmen, Radfahren und Laufen stark zu halten.
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11000+
Members Fueling
3
Experts Coaches
2700+
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Fuel Your Purpose in
1-2-3
TRAINIEREN
01
Sync your training, we handle the rest.
Enter your workouts or connect to your training app.
ERNÄHREN
02
Learn how to fuel just right.
No More Guesswork. See exactly what, when, and how to eat to perform your best.
GEWINNEN
03
Fuel Smarter. Train Harder. Race Stronger.
With Fuelin, every meal powers you toward your goals—strong and energized.

Add Training Activity
Enter your weekly exercise schedule in Fuelin

Sync Training Plan
Or connect to TrainingPeaks, TriDot, Humango or Final Surge, and Run Dot



Fast & Smart Food Logging
Our AI food tracking makes it easy to stay on track
1 Avocado?
1 or 2 Cups Rice?
2 or 3 Eggs?
Oatmeal?
Maurten Gel?
Clif Bar?
Chicken Breast?
Salad?
No More Guesswork



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The Fuelin Way
Progress Check
Easily keep track of your weight, sweat rate, fueling and more...
Body Data
You’ve lost 9.7 lbs (21.4%)
188.7 lbs
Start
179 lbs
Current
143.3 lbs
Goal
Whatever Your Goal
Whether you’re chasing a podium, setting a PR, or just feeling better during workouts, we’ll guide you every step of the way!
Fuel Your Purpose in 1-2-3
TRAIN
01
Sync your training, we handle the rest.
Enter your workouts or connect to your training app.
FUEL
02
Learn how to fuel just right.
No More Guesswork. See exactly what, when, and how to eat to perform your best.
WIN
03
Fuel Smarter. Train Harder. Race Stronger.
With Fuelin, every meal powers you toward your goals—strong and energized.
Fuelin funktioniert
Hier ist der Beweis
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