An 8-day loading protocol that builds thermal resilience from the inside. Built around a high-dose taurine base and key electrolytes.
High-sodium active hydration delivering 400mg sodium, 150mg potassium, and 25mg magnesium per sachet. Engineered to replace exactly what sweat takes.
40g of carbohydrates per gel, formulated with a 1:1 Maltodextrin-to-Fructose ratio for maximum absorption. Enhanced with a full active hydration electrolyte profile.
20 gels and 20 electrolytes, built to cover your nutritional need during your daily training.
40x gels & electrolytes, and 8 CoreCtrl sachets. Everything from your first training session through to the finish line, in one complete system.
Used in training. Trusted on race day. By athletes and champions around the world. 4.8/5 stars.
ABOUT US
Created by Olympic champion Alistair Brownlee, every product is designed, tested, and refined to deliver what your body actually needs.

Built on truth.
Proven in performance.
We Didn't Guess. We Lived It.
Select your race. Get your protocol.
Pre-Race Protocol
Race Protocol
Post-Race Protocol
Pre-Race Protocol
Race Protocol
Post-Race Protocol
Pre-Race Protocol
Race Protocol
Post-Race Protocol
Pre-Race Protocol
Race Protocol
Post-Race Protocol
The fuelling protocols above are general guidelines for informational purposes only. Individual requirements for fluid intake, carbohydrate consumption, and sodium replacement vary depending on body mass, training status, sweat rate, temperature, exercise intensity, gastrointestinal tolerance, and medical history. These protocols do not constitute medical or nutritional advice and are not a substitute for personalised guidance from a qualified sports dietitian or medical practitioner. To the fullest extent permitted by applicable law, Truefuels Ltd accepts no liability for any adverse effects arising from reliance on this information. By following these guidelines you do so entirely at your own risk. If you have a pre-existing medical condition or are taking medication, consult a qualified healthcare professional before following any nutrition or supplementation protocol.
Master your fueling
Glycogen Storage: Is it the Key to Athletic Success?
The speed read Glycogen is the stored form of glucose in our muscles and liver. It’s essential for endurance, high-intensity efforts, and recovery. When glycogen runs low, performance declines. Whe...
Read more →
Why Electrolytes Matter in Endurance Performance
The Speed Read When we discuss electrolytes in endurance sports, we typically mean sodium, potassium, magnesium, and chloride. They are more than just “salts.” They’re essential minerals that keep ...
Read more →
Nutritional Best Practices for Endurance Athletes
The Speed Read: Why Nutrition Matters Fuelling for endurance isn’t just about loading up on carbs the night before a race. To perform, recover, and stay healthy, you need a well-rounded nutritional...
Read more →
Frequently Asked Questions
We love feedback! Please submit all feedback and suggestions via our form on the Contact Page. Your input is invaluable in helping us improve our products and services.
Our energy gel is crafted with a precise blend of carbohydrates, electrolytes, and hydration agents that work in harmony to:
- Fuel your muscles: Quick-acting carbohydrates provide immediate energy when needed.
- Enhance hydration: Essential electrolytes maintain fluid balance.
- Support recovery: A balanced formulation helps replenish glycogen and aids in post-exercise recovery.
- Steady release system: Endorsed by leading sports scientists, our gel delivers a continuous release of energy for sustained performance.
Carbohydrates are the primary fuel source for your body, especially during high-intensity exercise.
Here’s why they are essential for peak performance:
- Your immediate energy source is blood glucose, which your muscles rapidly use to provide the energy needed.
- Glycogen Storage: Glucose is stored in your muscles and liver as glycogen. These glycogen stores act as a readily available reserve that your body taps into during prolonged or intense exercise, helping to delay fatigue.
- Enhanced Endurance: Maintaining adequate carbohydrate levels ensures your muscles have the sustained energy required to perform at high intensities for longer durations. This is critical for endurance events where constant energy delivery is key.
- Optimal Brain Function: Carbohydrates also fuel your brain, supporting cognitive functions such as focus, coordination, and decision-making, which are crucial during competitive performance.
- Efficient Recovery: Consuming carbohydrates before, during, and after exercise helps replenish glycogen stores, accelerating recovery and preparing for subsequent training sessions or competitions.
- Water: Filtered and purified for essential hydration.
- Maltodextrin: A long chain of glucose molecules rapidly broken down and absorbed (via SGLT1) for immediate energy.
- Fructose: A natural sugar from fruit, absorbed via GLUT5, which complements maltodextrin and supports liver glycogen restoration.
- Coconut Water Powder: Provides electrolytes and essential vitamins/minerals for hydration and overall health.
- Himalayan Salt: Supplies essential sodium to maintain fluid balance during exercise.
- Tri Magnesium Citrate: A highly bioavailable form of magnesium in a triple citrate formulation, offering enhanced solubility and absorption to help prevent cramps and support overall performance.
- Potassium Sorbate: An antimicrobial agent that extends shelf life by preventing mould, yeast, and bacteria.
The performance gel results from a unique collaboration between top athletes and experts. It was co-designed by Olympic champion Alistair Brownlee and Nigel Mitchell, alongside renowned academics and a network of dedicated co-creators. With decades of experience, the latest research, extensive lab work, and rigorous field testing, we’ve crafted the ultimate performance gel to fuel your endurance and elevate your game.
Sodium is essential for maintaining fluid balance, nerve function, and muscle contraction. It helps prevent cramps and fatigue, making it a key component in any performance nutrition plan.
As soon as you create an account, you are a truefuels base member - automatically and at no cost! After, our membership levels are based on the quantity of orders per year to unlock certain benefits as indicated below:
Base Member
How to qualify: create an account
Perfect for: new fans and everyday athletes
Benefits:
- Exclusive newsletter with training tips, athlete stories & product insights
- Early access to product pre-orders
- Access to truefuels community events (city runs, training sessions)
Core Member
How to qualify: 6+ orders per year
Perfect for: loyal customers fueling their journey year-round
All level 1 benefits, plus:
- Annual truefuels merchandise gift card
- Extra discount on pre-order specials and seasonal sales specials
- Preferred access to exclusive live events (Q&As, athlete meetups)
- Occasional access to limited-run gear or collabs
Pro Member
How to qualify: 12+ orders per year - ordering by subscription automatically gives this member status
Perfect for: High-performance athletes and superfans
All level 2 benefits, plus:
- Free delivery on all orders
- First access to all new product drops
- Maximum discount on all products during pre-access windows
- Special discount on all merchandise all year long
- Signed merchandise guarantee (minimum 1/year from truefuels athlete partners)
- VIP access to behind-the-scenes athlete content and product R&D insights
We offer reliable and fast shipping on all truefuels products. For detailed information on shipping methods, transit times, and tracking, please refer to our Shipping Policy
We love feedback! Please submit all feedback and suggestions via our form on the Contact Page. Your input is invaluable in helping us improve our products and services.
Our philosophy is simple: athletes deserve nutrition that is as pure, focused, and determined as they are. We combine years of competitive experience with the latest scientific research to create products free from unnecessary additives, gentle on the digestive system, and tailored to the rigorous demands of human performance. Every product goes through a detailed forensic development process to ensure consistency and repeatability. When you choose truefuels, you join a community that values integrity, innovation, and the relentless pursuit of excellence.





