👋 You've been invited by a friend!

Get 2 Weeks Free.
Stop Guessing.
Start Performing.

Personalized Performance Nutrition App that helps achieve your Goals—whether you’re Running, Cycling, training for Hyrox, or targeting your next PR.‍
Start My 2-Week Free Trial
5,000,000+
Workouts Fueled
140+
Countries Reached
87%
Athletes Recommend

Featured in

The word 'Outside' in bold yellow letters with a red shadow on a white background.CNN logo in bold red letters.Slowtwitch.com logo featuring a blue circle with white abstract lines and a starburst.Triathlete Magazine logoMen's Journal logo in bold black uppercase letters.TrainingPeaks
TrainingPeaks logo with 'PEAKS' in bold blue letters and 'Training' in thin black letters.

Trusted by World Champions.
Built for Everyone.

From Olympic gold medalists to weekend warriors, athletes across every sport use Fuelin to take the guesswork out of nutrition. 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!

Jan Frodeno
Jan Frodeno
Triathlete
Triathlete
Holly Lawrence
Holly Lawrence
Triathlete
Triathlete
Daniela Ryf
Daniela Ryf
Triathlete
Triathlete
Ben Kanute
Ben Kanute
Triathlete
Triathlete
Justin Barcia
Justin Barcia
Motocross and Supercross
Motocross and Supercross
Kyle Smith
Kyle Smith
Triathlete
Triathlete
John Reed
Runner
Why Athletes Choose Fuelin
Fuelin adapts to your actual training, not the workout you planned last Sunday. Log a run, lift, or rest day and your nutrition updates automatically. Built by experts, personalized for you, science-backed recommendations calibrated to your body composition, goals, and effort level. No more guesswork. See exactly what to eat, when to eat it, and why it matters for your performance. Fueling becomes the easiest part of your day.
Start My 2-Week Free Trial

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

Built by Experts. Driven by Science.

Every recommendation from our algorithm comes from a team that's coached world champions, Olympic athletes, and thousands of everyday competitors. Not another calorie counter built by software engineers. Actual nutrition science, in your pocket.
Scott Tindal. Smiling man with short dark hair and a trimmed beard wearing a black shirt against a light gray background.
Nutrition Coach

Scott Tindal

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

Read More
Dr. Alan McCubbin. Smiling man with short brown hair wearing a dark button-up shirt against a gray background.
Sports Dietician

Dr. Alan McCubbin

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

Read More
Megan Foley. Portrait of a smiling woman with blonde hair pulled back, wearing a black collared shirt.
Performance Dietician

Megan Foley

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

Read More
Smiling man with short dark hair and trimmed beard wearing a black shirt against a light gray background.
Co-Founder and Chief Nutrition Officer

Scott Tindal

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

Sports Dietician

Dr. Alan McCubbin

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

Registered Dietician

Megan Foley

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

Teams Our Coaches Have Worked For
Toronto Maple Leafs logo featuring a blue maple leaf with white text.Oracle Team USA logo with 'Oracle' in red above a blue horizontal line and 'Team USA' in blue below it.Leicester Tigers shield logo with white tiger head silhouette against green and red background, with 'Leicester Tigers' text and year 1880.British Rowing logo with stylized Union Jack and crossed red oars above the text 'British Rowing'.Red England Lions emblem featuring three lions passant guardant stacked vertically beneath a crown, with the text 'ENGLAND LIONS' below.Illustration of a harlequin character wearing a colorful diamond-patterned costume with a sword held behind his head, above the word Harlequins.True logo with lowercase letters and a teal leaf symbol above the letter e.
Logo text reading 'AUS TRIATHLON' with 'TRIATHLON' in gradient colors from blue to orange and 'AUS' in gray.
Start My 2-Week Free Trial

Fuel Your Purpose in
1-2-3

TRAIN
01

Seamlessly integrate your training plan.

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.
Add Training Activity
Enter your weekly exercise schedule in Fuelin
Sync Workouts
From leading training platforms and fitness trackers including TriDot, TrainingPeaks, Humango, Final Surge, Strava, and Garmin.
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
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.
Add Training Activity
Enter your weekly exercise schedule in Fuelin
Sync Training Plan
Or connect to TrainingPeaks, TriDot, Humango, Final Surge and Run Dot
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
The Fuelin Way
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...
Whatever Your Goal
Whether chasing podiums, breaking PRs, or feeling your best, Fuelin guides you all the way.

Fuelin Works
Here’s The Proof

Our Community

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
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
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
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
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
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
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
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
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
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 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
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 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
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
Get The App