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Built for Endurance Athletes

You train like a beast.
Don't leave your fuel to chance.

Stop guessing your carb and sodium needs. Ultrition connects to your TrainingPeaks, Strava and Garmin to analyze your physiology and the day's weather, helping you execute the perfect fueling strategy.

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Ironman• Gravel Cycling• Marathon• Ultra Trail• Hyrox• Ironman• Gravel Cycling• Marathon• Ultra Trail• Hyrox
Why Fueling Matters

Your hard work deserves the right fuel.

You wake up in the dark, log the long hours, and make the sacrifices. But leaving your nutrition to "feel" can lead to sudden fatigue or stomach issues. We ensure your fueling matches your dedication.

Hitting the Wall

Experiencing a sudden drop in energy isn't a lack of fitness—it's a fueling gap. When your carbohydrate intake doesn't perfectly match your body's real-time demands, you feel drained right when it matters most.

Stomach Discomfort

Experiencing nausea or GI distress from taking in the wrong ratios of fructose and glucose, making it difficult to hold your target pace.

Hydration Guesswork

Leaving your hydration to chance often leads to unexpected muscle fatigue. Instead of guessing, you need fluid and sodium targets perfectly adapted to your personal sweat rate and the day's weather.

How It Works

Less Guesswork.
More Time to Train.

01

Sync Your Data

Connect your Garmin, Strava or TrainingPeaks. We automatically pull your fitness metrics, FTP, pace zones, and upcoming race routes.

02

AI Crunches the Numbers

Our intelligence engine cross-references your effort level, race elevation, and live weather data to calculate your exact carbohydrate and fluid needs.

03

Get Actionable Alerts

No generic "eat 60g carbs/hr". Get precise instructions: "Minute 45: Take 1x Maurten Gel. Minute 60: Drink 500ml water + Electrolyte."

Garmin Garmin Connect
Connected
Strava Strava
Connected
TrainingPeaks TrainingPeaks
Connect
RACE: IRONMAN 70.3 32°C HEAT
Target Carbohydrates
90g / hour
Target Sodium (Sweat Loss)
850mg / hour

Execution

00:45 (Alarm set)
1x Maurten Gel 100
+25g Carbs
01:00
Drink 250ml Flask
LMNT / 500mg Sodium
The Science

Your body is an equation. We solve it.

Built on sports science guidelines (ACSM) and real-world metabolic data. Ultrition leaves nothing to chance.

Metric 01

Dynamic Sweat Rate

Analyzes ambient temp, humidity, and intensity to predict fluid loss. Prevents hyponatremia and dehydration proactively.

Metric 02

Grams / Hour

Calculates precise carbohydrate demands to sustain glycogen stores during ultra-endurance efforts.

Core 01

Predictive Logic

Learns from your past performances on Garmin to refine future fueling curves tailored specifically to your physiology.

Context

Environmental Impact

The engine auto-adjusts sodium and fluid ratios on hot, humid days versus cold, dry races. Weather is never an excuse again.

Got Questions?

We've Got Answers

Is Ultrition just another calorie counter?

No. While everyday nutrition is important, our focus is entirely on your intra-workout and race-day fueling (carbs, sodium, water) to maximize your athletic output.

Does it work for beginners or only pros?

If you train hard enough to sweat and deplete glycogen, Ultrition is for you. Whether you're aiming for a "Sub3" marathon or just trying to finish your first Ironman 70.3 without walking, proper fueling is the easiest way to improve your time.

Do I have to use specific gel brands?

Absolutely not. Ultrition tells you the exact macros you need (e.g., 60g Carbs). You can fulfill that with Maurten, SiS, Skratch Labs, or even real food like bananas. We adapt to your gut preference.

"The foundation of Ultrition isn't a business plan. It's built on our own DNFs, muscle cramps, burnouts, the walls we hit, and the finish lines we never reached. Our story actually started in the kitchen, mixing our own homemade energy gels. We crafted tailor-made fuel based exactly on our daily training, our upcoming races, and our recovery needs. Call it science or call it a placebo, but it worked. We were never left stranded out there again. We built Ultrition so no other athlete has to feel left stranded on race day. Built by athletes, for athletes."

The Ultrition Team

Ready to fuel smarter?

Join the waitlist today and lock in 50% off when we launch. Your best race starts with better fuel.