over 5 million meals planned
Personalised fueling. Periodised for every session.
Hexis builds your daily fuel plan around your training sessions - and updates it every time something changes. Whatever your sport.
Trusted by elite performance organisations
Used across pro cycling, Premier League football, Premiership rugby, the Ryder Cup and Formula 1.
Hexis was built by scientists, performance nutritionists, and data experts who've worked with the world's best athletes.
Dr. Sam Impey authored the seminal Fuel for the Work Required paper.
100+
peer-reviewed publications from the Hexis team
FUELLED BY HEXIS
They're not guessing their fueling. Are you?
From grand tours to marathon finish lines - these endurance athletes know exactly how to fuel for the work required.
Hexis helps you fuel what's next - not just track what you've already done.
With Hexis
- A fuel plan built around what's coming - not what you already did
- More carbs on hard days. Fewer on easy days. Carb periodisation happens automatically
- Exactly what to eat, when to eat it, and why it matters today
- Live Energy so you always know where you stand
Without Hexis
- The same macros every day, regardless of what's in your training plan
- Cutting calories and hoping your performance doesn't suffer
- Guessing what to eat before, during, and after sessions
- Running out of fuel when it matters most
How it works
Three steps to never guessing your fueling again.
Tell us about you
Sport, performance goals, lifestyle preferences. Two minutes.
Connect your training apps
Garmin, WHOOP, TrainingPeaks, Intervals.icu, Apple Health - your sessions sync automatically.
Open the app. Your fuel plan is already there.
Exactly how to fuel, when to fuel, and why it matters - updated in real time.
Carb Codes™
Your Carb Codes™ are personalised to your training and recalculate automatically as it changes.
No manual maths, no guesswork. Just the right fuel signal for every meal, every day.
- Adapts across a 72-hour training window
- Accounts for rest days, base, threshold, and race days
- Built on the Fuel for the Work Required framework
Live adaptation
Your fuel plan follows your training.
Sessions change. Your fuelling should too. When you update a workout in Hexis or sync an activity from a connected app, Hexis recalculates your Carb Codes™ to reflect your training.
Change happens
Training changes
Sync your training through a connected app, or add and edit sessions directly in Hexis. Whether you go longer, finish early or fit in an extra workout, your fuel plan adapts.
Hexis recalculates
Your Carb Codes™ for the rest of the day, instantly.
Plan stays ahead
Your updated fuel plan
Connect your training
Garmin
WHOOP
TrainingPeaks
Intervals.icu
Apple Health
Your training changes. Your fuel plan should too.
Start fueling every session with a plan built around you.
Connect your training data and Hexis will build your personalised daily fuel plan, then update it whenever your training changes.
Get started
“As a professional trail runner, my nutrition strategy can make or break a race. Hexis has become a non-negotiable part of how I fuel — simple, effective, and it just works.”
“I got faster during this whole period. My power didn't drop at all. My energy went up. I stopped craving junk food at 9pm. And never once did I feel like I was on a diet.”
Numbers never dropped
Eating more than ever before
Lost in 12 weeks
YOUR PERFORMANCE STACK
The missing layer in your performance stack.
Garmin records your sessions. TrainingPeaks holds your plan. WHOOP monitors your recovery. Hexis connects everything and turns it into a fuel plan.
What athletes are saying
What athletes are saying.
“Training for my first Ironman, Hexis has completely changed the way I approach nutrition. It gives me a clear plan for every session, so I can focus on training knowing I’m properly fuelled for it.”
“The recent upgrade has just made a great app even better, and it’s certainly got me on the right track with my sports nutrition planning. My performance on the bike has improved whilst my weight has decreased (lost 2kg) and my body fat has reduced by almost 2 percentage points.”
"Hexis has been the single greatest improvement to my training and performance since I first started training with power data years ago."
"The best performance improvement I've ever encountered, FTP increased by 15 watts while in a deficit and lost 10 pounds"
"Loving the whoop integration for non cycling activities along with training peaks."
Covered in the media
Independent athletes. Measured outcomes.
Two endurance journalists put Hexis into their own training and reported what changed.
Who's behind the science
World-class experts. Real results.
Hexis was built by scientists, performance nutritionists, and data experts who've worked with the world's best athletes.
Dr. David Dunne
- Performance Nutritionist to Olympic, Ryder Cup, Premier League, International Rugby, NBA and World Tour Cycling athletes and organisations.
- PhD in Behaviour Change, Design Thinking & Technology Innovation in Sports Nutrition
- International Olympic Committee alumnus with multiple peer-reviewed publications
Dr. Sam Impey
- PhD in cellular and molecular adaptations to exercise-nutrition interactions
- Author of the seminal 'Fuel For The Work Required' paper - now the operational paradigm across sports nutrition
- Over a decade supporting elite athletes worldwide
Dr. Xiaoxi Yan
- PhD in biostatistics and bioinformatics
- Strong analytical background in health and technology research
- Drives the data science and modelling that powers Hexis personalisation
Dr. Jon Bartlett
- 20+ years across British Cycling, the FA, Liverpool FC, NBA & AFL
- 65+ peer-reviewed publications on carbohydrate periodisation, exercise metabolism & recovery
- Former NBA Performance, Research & Innovation Lead
Simple pricing
Your personalised fuel plan for €24.99/month.
Everything you need to fuel every session, every recovery, every week.
Monthly
Billed monthly · Cancel anytime
- Personalised daily fuel plans built around your training
- Real-time plan updates as your training and fueling changes
- Syncs with Garmin, WHOOP, TrainingPeaks and more
- Race day and competition fueling guidance
- Carb Codes™ for every meal, every day
- Cancel anytime, no contracts
Annual
Just €10.83/month - save 57%
Save €169.89 every year
- Personalised daily fuel plans built around your training
- Real-time plan updates as your training and fueling changes
- Syncs with Garmin, WHOOP, TrainingPeaks and more
- Race day and competition fueling guidance
- Carb Codes™ for every meal, every day
- Cancel anytime, no contracts
Fuel what's next. Not just what you've already done.
Create your account in 2 minutes and your first personalised fuel plan is ready straight away.
Cancel anytime.