Long Range Fuel Elite, The First Ever Informed Sport Certified Nut Butter

Resilient Nutrition have received formal Certification from LGC Limited, administrators of the Informed Sport programme, of four new variants of Long Range Fuel, known as Elite. The products which have been certified in the Informed Sport Certification testing programme include Energise, Energise & Rebuild, Calm and Calm & Rebuild.

Informed Sport is recognised by major National Anti-Doping Organisations (NADOs) including UK Anti-Doping (UKAD), the Institute of National Anti-Doping Organisations (iNADO) and sporting bodies such as the English Institute of Sport (EIS), Ladies Professional Golf Association (LPGA) and the Australian Institute of Sport (AIS). The Informed Sport programme provides assurance to end users that products have been tested for a wide range of substances prohibited in sport. Every batch of these products is tested for banned substances under the Informed Sport programme. Products undergo rigorous testing using ISO 17025 accredited methods to provide the highest level of assurance for athletes.


Long Range Fuel Elite is the first, and only, Informed Sport approved nut butter product. During the process, it was clear that Long Range Fuel Elite was unlike any other product previously tested or approved by Informed Sport, not falling into any of the existing categories such as bar, capsule, chew, gel, liquid, powder, or tablet. As a result, Informed Sport created a brand-new category ‘paste’.

"It's commendable to see Resilient Nutrition taking an extra step in quality assurance and its commitment to protecting athletes. Inadvertent doping still remains a major issue in elite sport. With Informed Sport, every single batch of a product is tested before going to market. This way, when an athlete sees the Informed Sport logo on Long Range Fuel product packaging, they will know it has been tested to the highest of standards. With over 55 years of anti-doping experience, athletes can trust their reputation is protected with Informed Sport certified products." Paul Klinger, Business Development Director for Informed Sport


Long Range Fuel was originally put to the test in 2019, when Dave Spelman and Max Thorpe prepared to row the Atlantic in the Talisker Whisky Atlantic Challenge. They would be rowing for up to 70 days at sea, alternating between each other on a continuous cycle of two-hour shifts through the day and night. They needed a calorie-dense, easy-to-digest, performance-enhancing nutrition solution that would sustain their energy for weeks at sea. Using Long Range Fuel, the pair went on to break the World Record for the 3,000-mile crossing in a time of 37 Days, 7 hours, and 54 minutes. 

The Elite range was born out of growing demand from pro and semi-pro athletes, following a shift in nutrition approach away from the traditional supplements, to a more whole food-based functional foods strategy. The Informed Sport certification provides users with the assurance that our Long Range Fuel Elite products are safer and tested for banned substances.

Long Range Fuel has gained the attention and approval from athletes, including four-time World Ironman champion, Chrissie Wellington OBE.

Chrissie Wellington Resilient Nutrition

“From the very first try I was hooked! Not only are all of the Long Range Fuel products absolutely delicious, they really do support performance, recovery, and holistic health, all with a focus on real, whole food and high-quality ingredients. They are suitable for anyone – from those taking their first steps in sport to those planning a record-breaking endurance adventure, and everyone in between.

To have the Informed Sport certification will give consumers the added confidence that the products they are taking meet the highest standards with regards to batch testing for any banned substances and, as a former elite athlete, this is of utmost importance in choosing what products to consume on and off the race course.”


Over the last nine months we have been working with our military clients and other elements of the UK armed forces to evolve and iterate our products to meet the needs of defence and security clients. Long Range Fuel is very lightweight, stable, and calorie-dense, making it ideal to sustain troops for long periods of time in isolated and inclement environments.


We set out to design category-defining nutrition products that would meaningfully and sustainably enhance mental and physical performance. Long Range Fuel, and Long Range Fuel Elite, are designed based on the science of chrononutrition. Chrononutrition is the relationship between your nutrition and your body’s “clock”. This clock programmes daily (roughly 24-hour cycles in all sorts of processes in your body, including your sleep/wake cycle, digestion, metabolism, and immune function. To suit our bodies’ different needs at different times of day, we developed four versions of Long Range Fuel. Our Energise products put you in high gear, boost your exercise performance, and help you be more productive at work. Our Calm products help you better cope with anxiety and support your strength. Both Energise and Calm are also available as Rebuild versions, which contain added high-quality protein to aid recovery and make them an ideal meal replacement.  

Next, our system is based on whole foods. Humans have relied on certain foods, including nuts, for tens of thousands of years. As evolution typically proceeds slowly, our bodies are simply not well adapted to the kinds of ultra-processed foods that so many people now gravitate to, and such poor nutrition contributes to widespread chronic disease. Long Range Fuel is based on tree nuts. Carefully controlled studies have consistently reported that eating tree nuts (including the ones in Long Range Fuel) has numerous positive effects on key aspects of cardiometabolic health, including blood sugar control, blood lipids, and inflammation. Since different nuts have unique nutritional benefits, we chose to include multiple nuts in all versions of Long Range Fuel, boosting dietary variety. In Long Range Fuel, we combine the best of the Stone Age (nuts) with the best of the Space Age (performance-enhancing, health-promoting special ingredients) to help you be at your best, both now and in the long-term.


Energise (Caffeine and L-Theanine)

Energise Long Range Fuel contains added caffeine and Suntheanine® L-theanine to strengthen your body, sharpen your mind, and boost your energy. The recommended dose of Energise Long Range Fuel contains an amount of caffeine that has been consistently shown to enhance performance in multiple types of exercise, including endurance, intermittent sprint, strength, and power exercise. This dose of caffeine also routinely enhances multiple aspects of cognitive function, including vigilance, attention, reaction time, and mood.

Energise versions of Long Range Fuel also contain Suntheanine®, a 100% pure form of L-theanine (an amino acid in tea) that has been frequently studied by scientists. L-theanine reliably reduces anxiety and stress, and several studies have shown that caffeine and L-theanine have complementary effects on brain function, increasing mental processing speed and accuracy, and reducing mind wandering.

Calm (Ashwagandha)

Calm versions of Long Range Fuel contain the vegan form of KSM-66 Ashwagandha®, a full-spectrum root extract that has been the most-studied type of Ashwagandha by scientists. Controlled clinical studies have shown that regular consumption of KSM-66 Ashwagandha® reduces feelings of stress and associated stress hormonesboosts cardiorespiratory fitness, and accelerates how quickly people gain muscle and strength during resistance training. Participants in these studies generally consumed 600mg KSM-66 Ashwagandha® each day - the amount found in a 100g pouch of Calm or Calm & Rebuild Long Range Fuel. 

Rebuild (Whey Protein and L-Leucine)

Rebuild versions of Long Range Fuel contain whey protein isolate, a highly and rapidly digestible dairy protein that has an excellent amino acid profile. These characteristics make whey protein particularly effective at stimulating the growth of skeletal muscle tissue, so it’s no surprise that people who consume whey protein during exercise training tend to gain muscle and strength faster and lose more fat than those who don’t.

We also add an amino acid named L-leucine to Rebuild versions of Long Range Fuel. Leucine is unique in that it can independently trigger the synthesis of new proteins in muscle by stimulating a signalling pathway named mTOR, meaning that adding small amounts of leucine to protein makes the protein more anabolic.


Long Range Fuel is a relatively high fat, low carbohydrate product, and the longer the exercise you’re doing, the more your body fat relies on fat for energy. This makes Long Range Fuel ideal for ultra-endurance events. The fat content of Long Range Fuel makes it very energy-dense, which has two key advantages. One of these is that it is lightweight yet contains lots of calories, which can be critical when you need to minimise how much you’re carrying. The other is that it’s easy to eat lots of calories via Long Range Fuel, and people who consume more calories tend to be more successful in ultra-endurance events.

Then there is dietary protein, the oxidation of amino acids (leucine, especially) increases during endurance exercise, providing as much as 10% of energy. The Rebuild versions of Long Range Fuel contain added whey protein isolate and L-leucine to help offset these amino acid losses, protecting your muscles while you’re pushing your limits. 

The salt content of Long Range Fuel is both key to hydration (at the extreme, insufficient sodium intake can lead to a life-threatening state named hyponatraemia) and helps make Long Range Fuel delicious but not overly sweet. This is important, for ultra-endurance athletes get tired of sugary snacks such as energy gels and develop a preference for saltier, more savoury items, probably because these people haven’t been consuming enough calories or salt. 


We are a team of scientists, coaches, and athletes who have taken part in competitions, races, and programmes designed to test the limits of human performance. We have completed extensive research and product development with athletes, explorers, and the military, and we are currently working on the development of several innovative products to complement Long Range Fuel.



For further information please contact:

Charlie Halkyard, Head of Marketing & Communications, charlie@resilientnutrition.com

Ali Macdonald, Chief Executive Officer, ali@resilientnutrition.com