Fuelin app home screen showing next meal, next workout and upcoming race
4.5 Star Rating
Trusted by 100K+ athletes
“Fuelin is the daily companion to take the guesswork out of nutrition that I wish I had earlier in my career.”
- Jan Frodeno (The GOAT, Pro Triathlete Olympic Gold Medalist, 3x Ironman World Champion)
"I discovered Fuelin at Unbound 200 and was amazed. I had no idea I was under-fueling —now it’s easy, and I’m hooked!"
- Colleen Maherd (Gravel Cyclist)
"Helps me build awareness and healthy habits, removing the worry and helping me keep on track!"
- Rob Castaneda (Recreational Athlete)

Featured in

Whatever your sport, we tell you how to fuel.
Runner fueling for a training run
Running
Athlete strength training in the gym
Gym
Football player in action
Football
Runner training outdoors
Running
Athlete lifting weights in the gym
Gym
Runner fueling for a training run
Running
Athlete strength training in the gym
Gym
Football player in action
Football
Runner training outdoors
Swimming
Athlete working out in the gym
Gym
Cyclist on a training ride
Biking
Swimmer training in the pool
Swimming
Road cyclist riding outdoors
Biking
Tennis player hitting a shot
Tennis
Open water swimmer
Swimming
Cyclist on a training ride
Biking
Swimmer training in the pool
Swimming
Road cyclist riding outdoors
Biking
Tennis player hitting a shot
Tennis
Open water swimmer
Swimming

Instantly unlock custom nutrition coaching to power your goals

Simple.

"Less guesswork, smarter fueling, faster recovery—more time to train!"

- Nathalia C. (Endurance Runner)

Fuelin app on an iPhone

Personalized.

"Nutrition made easy—it’s personalized to my goals, workouts, and lifestyle.”

- Mike Quinn (Recreational Triathlete)

Fuelin daily plan with breakfast, snack and run cardsFuelin breakfast meal card
Fuelin recipe cardFuelin recipe suggestion cardFuelin personalized recipe card
Personalized nutrition plan background

Adaptive.

“I love how Fuelin adjusts to my workouts — a personal nutrition coach in my pocket.”

- Jack Thompson (Ultra Endurance Cyclist.)

Your Training App
Fuelin bike workout card with start time, duration and heart rate zone
Run
07:02
2h 3m
Z3
Log Fuel/Hydration
3 blocks or 1 gel every 15-20 mins +/- 1 bar every 60mins (optional)
500-1500ml/hr water +/- electrolytes
Fuel & Hydration Test Details
Fuelin fuel dashboard showing fluid and carb intake
Cyclist holding a water bottle on a ride
Cyclist with the Fuelin app showing a fueling plan
Add Training Activity
Enter your weekly exercise schedule in Fuelin
Adding a training activity in the Fuelin app
Sync Workouts
From leading training platforms and fitness trackers including TriDot, TrainingPeaks, Humango, Final Surge, Strava, and Garmin.
Training apps that sync with Fuelin, including Humango, Strava and Garmin Connect
Sync connection line
Fuelin app icon
Healthy whole foods for athletes
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
Fuelin macro tracking for protein, fat and carbs
Wheat toast logged in FuelinFuelin food logging card
Fuelin AI nutrition coach chat message
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!
Running iconSwimming iconCycling iconStrength training icon
Football iconBaseball iconCycling iconStrength training icon
Running iconSwimming iconCycling iconStrength training icon

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.
Add Training Activity
Enter your weekly exercise schedule in Fuelin
Adding a training session in the Fuelin mobile app
Sync Training Plan
Or connect to TrainingPeaks, TriDot, Humango, Final Surge and Run Dot
Training platform app iconTrainingPeaks app iconFinal Surge app iconHumango app iconStrava app iconGarmin Connect app icon
Sync connection line
Fuelin syncing with training apps
FUEL
02

Learn how to fuel just right.

No More Guesswork. See exactly what, when, and how to eat to perform your best.
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
Healthy whole foods for athletes
Fuelin fueling card with meal targets
The Fuelin Way
Healthy whole foods for athletes
WIN
03

Fuel Smarter. Train Harder. Race Stronger.

With Fuelin, every meal powers you toward your goals—strong and energized.
Progress Check
Easily keep track of your weight, sweat rate, fueling and more...
Fuelin body data card tracking weight progress toward a goal
Whatever Your Goal
Whether chasing podiums, breaking PRs, or feeling your best, Fuelin guides you all the way.
Running iconRunning iconStrength training iconSwimming icon
Running iconRunning iconStrength training iconSwimming icon
Running iconRunning iconStrength training iconSwimming icon
Running icon
5,000,000+
Workouts Fueled
Globe icon
140+
Countries Reached
Thumbs up icon
87%
Athletes Recommend

Built by Experts. Driven by Science.

We've fueled World Champions and everyday athletes alike. Now it's your turn — expert knowledge powers every recommendation in your app.
Scott Tindal, Fuelin nutrition coach
Nutrition Coach

Scott Tindal

Accredited nutrition coach to professional triathletes and executives. Over 20 years experience in professional sports.

Dr. Alan McCubbin, sports dietitian
Sports Dietician

Dr. Alan McCubbin

Accredited Sports Dietitian and researcher with 20 years of experience working with endurance and ultra-endurance athletes.

Megan Foley, performance dietitian
Performance Dietician

Megan Foley

Registered Dietitian to endurance athletes at all levels, including professionals, Olympians, and age groupers.

Scott Tindal, Fuelin co-founder and Chief Nutrition Officer
Co-Founder and Chief Nutrition Officer

Scott Tindal

Accredited nutrition coach to professional triathletes and executives. Over 20 years of experience in professional sports.

Read More
Dr. Alan McCubbin, sports dietitian
Sports Dietician

Dr. Alan McCubbin

Accredited Sports Dietitian and researcher with 20 years of experience working with endurance and ultra-endurance athletes.

Read More
Megan Foley, performance dietitian
Registered Dietician

Megan Foley

Registered Dietitian to endurance athletes at all levels, including professionals, Olympians, and age groupers.

Read More
Teams Our Coaches Have Worked For
Toronto Maple Leafs logoOracle Team USA logoLeicester Tigers logoBritish Rowing logoEngland Lions logoHarlequins logoTrue Protein logo
Toronto Maple Leafs logoToronto Maple Leafs logoLeicester Tigers logoBritish Rowing logoEngland Lions logoHarlequins logoTrue Protein logo
Toronto Maple Leafs logoOracle Team USA logoLeicester Tigers logoBritish Rowing logoOracle Team USA logoTriathlon Australia logoEngland Lions logoHarlequins logo

Whatever your purpose, we’ll fuel your ambition!

Improve my body composition
Feel less anxious before a race
Dominate my Hyrox event
Reduce gut issues while racing
Feel more energized
Lose weight
Crush my next marathon
Build muscle and get stronger
Podium my next triathlon
Improve my focus at work
Carry my grocery bags with ease
Feel confident about my nutrition
Dial in my hydration in training

Fuelin Works
Here’s The Proof

Our Community

Fuelin community triathlete on the bike leg of a race
Fuelin community athlete celebrating with a finisher medal at IRONMAN 70.3
Fuelin community athlete smiling in a Kona cap
Fuelin community athlete swimming in open water
Fuelin community athlete celebrating at the IRONMAN 70.3 World Championship
Fuelin community triathlete racing in an aero helmet
Fuelin community triathlete during a race
Fuelin community athlete smiling at a race start
Fuelin community athlete with an IRONMAN finisher medal
I've felt increased energy, better recovery and more consistency.

“Before finding Fuelin I wasn't aware that a system existed that could accurately account for my training on a day to day basis based on the training my coaches set for me. It just takes the guesswork out of the whole process and has empowered me to properly fuel my body. I've felt increased energy, better recovery and more consistency. Also, practicing my race nutrition in training has led to greater confidence in my plan and becomes more second nature so that I can make sure l hit it in a race.”

Swimmer smiling in the pool after a race
Holly Lawrence
Triathlete
I've felt increased energy, better recovery and more consistency.

“Before finding Fuelin I wasn't aware that a system existed that could accurately account for my training on a day to day basis based on the training my coaches set for me. It just takes the guesswork out of the whole process and has empowered me to properly fuel my body. I've felt increased energy, better recovery and more consistency. Also, practicing my race nutrition in training has led to greater confidence in my plan and becomes more second nature so that I can make sure l hit it in a race.”

Swimmer smiling in the pool after a race
Holly Lawrence
Triathlete
I've felt increased energy, better recovery and more consistency.

“Before finding Fuelin I wasn't aware that a system existed that could accurately account for my training on a day to day basis based on the training my coaches set for me. It just takes the guesswork out of the whole process and has empowered me to properly fuel my body. I've felt increased energy, better recovery and more consistency. Also, practicing my race nutrition in training has led to greater confidence in my plan and becomes more second nature so that I can make sure l hit it in a race.”

Swimmer smiling in the pool after a race
Holly Lawrence
Triathlete
I've felt increased energy, better recovery and more consistency.

“Before finding Fuelin I wasn't aware that a system existed that could accurately account for my training on a day to day basis based on the training my coaches set for me. It just takes the guesswork out of the whole process and has empowered me to properly fuel my body. I've felt increased energy, better recovery and more consistency. Also, practicing my race nutrition in training has led to greater confidence in my plan and becomes more second nature so that I can make sure l hit it in a race.”

Swimmer smiling in the pool after a race
Holly Lawrence
Triathlete
I've felt increased energy, better recovery and more consistency.

“Before finding Fuelin I wasn't aware that a system existed that could accurately account for my training on a day to day basis based on the training my coaches set for me. It just takes the guesswork out of the whole process and has empowered me to properly fuel my body. I've felt increased energy, better recovery and more consistency. Also, practicing my race nutrition in training has led to greater confidence in my plan and becomes more second nature so that I can make sure l hit it in a race.”

Swimmer smiling in the pool after a race
Holly Lawrence
Triathlete
I've felt increased energy, better recovery and more consistency.

“Before finding Fuelin I wasn't aware that a system existed that could accurately account for my training on a day to day basis based on the training my coaches set for me. It just takes the guesswork out of the whole process and has empowered me to properly fuel my body. I've felt increased energy, better recovery and more consistency. Also, practicing my race nutrition in training has led to greater confidence in my plan and becomes more second nature so that I can make sure l hit it in a race.”

Holly Lawrence, pro triathlete
Holly Lawrence
Pro Triathlete
Fuelin Powers My Ultra-Distance Success

"Fuelin has been a key factor on my training for Ultra Distance Triathlons. Fuelin has helped me complete my trainings and races feeling strong all the way through and recover faster, making my training more efficient."

Jonathan Perez, age group triathlete
Jonathan Perez
Age Group Triathlete
Fuelin Cuts Through the Noise—Nutrition Expertise I Trust

"I feel lucky that we live in the age of information. However knowing what information is valuable is key. I am in safe hands with  Fuelin and the team of experts in the field of nutrition for me to perform at my best."

Kyle Smith, pro triathlete
Kyle Smith
Pro Triathlete
Nutrition Nailed—A Game Changer

"Fuelin has helped me nail my nutrition, not only for my sport, but for my overall health. This app is a game-changer for endurance athletes!"

Colleen Baker, competitive cyclist
Colleen Baker
Competitive Cyclist
Fuelin is Essential to Our Athletes’ Success

"As an original partner of Fuelin since its inception, I’ve witnessed its tremendous impact on athletes at every level—from Purple Patch pros to individuals striving for better energy, health, and performance. It’s an integral part of Purple Patch programming.”

Matt Dixon, head coach of Purple Patch Performance
Matt Dixon
Head Coach Purple Patch Performance + IRONMAN Master Coach
My Best Race Yet

"Long story short, I went to the line at Ironman Indian Wells 70.3, healthy, feeling fresh, and at an ideal race weight, and I finished with my fastest closing mile, a PR, and a top ten AG place."

Bob Harris, masters triathlete
Bob Harris
Masters Triathlete
Fuelin Optimizes Nutrition for Peak Performance—All the Way to the LA Olympics

“Fuelin has been a game-changer in optimizing my athletes’ nutrition, helping them perform at their peak when it matters most.”

Parker Spencer, Project Podium USA Triathlon head coach
Parker Spencer
Project Podium USA Triathon Head Coach
Simple, Effective, Game-Changing

"It’s easy it’s simple and it’s super effective. It makes my coaching and my own athletic performance so much better."

Lauren Vallee, Valiant Endurance coach and elite athlete
Lauren Vallee
Coach Valiant Endurance/ Elite Athlete
More Than Nutrition—Fuelin Educates and Empowers

"I really love Fuelin! Not just for the nutrition guidance on the app but also for the amazing education I have gained."

Alex Thio, age group triathlete
Alex Thio
Age Group Triathlete
Got 5 min?

Let’s Build Your Perfect Nutrition Plan

Fuelin onboarding questionnaire in the app

Got Questions?
We’ve Got Answers

How is Fuelin different from calorie trackers like MyFitnessPal?

Calorie trackers like MyFitnessPal record what you ate. Fuelin tells you what, when and how much to eat. It sets daily calorie, carb, protein and fat targets from your planned and completed workouts, gives you fueling guidance for training and race day, and adjusts your upcoming meals to what you've already eaten. If you already log food in MyFitnessPal, it syncs to Fuelin through Apple Health.

How does Fuelin personalize my nutrition?

Fuelin starts with your goal, body weight, gender, athlete experience level and daily activity level. It then adds your planned and completed workouts, your resting metabolic rate (RMR) and performance markers such as functional threshold power (FTP) and threshold pace. Fuelin estimates your RMR, FTP and threshold pace, or you can enter your own values if you have them. Its recommendations are built by sports dietitians and based on the latest sports science.

Does Fuelin work with Garmin and Strava?

Yes. Fuelin imports your completed workouts from Garmin Connect and Strava, so your nutrition targets reflect the training you actually did. You can connect one or both.

Which training platforms does Fuelin sync with?

Fuelin syncs with TrainingPeaks, Garmin Connect, Strava, TriDot, RunDot, Final Surge, V.O2, HumanGO and Pushing Limits. Your planned workouts set your nutrition targets ahead of each session, and your targets update automatically when your training changes.

Can I still use Fuelin without a training platform?

Yes. You can add your workouts directly in Fuelin, and it sets your daily nutrition targets from them the same way it does for synced training.

Fuel Like the Pros—Available for Every Athlete.

We are honored that athletes of all backgrounds, ages and experiences have trusted us to assist them in their performance journey. Made for athletes but available for everyone with a purpose!