Fuel your performance with a range of products designed to support energy levels, muscle strength, exercise intensity and endurance. Shop the Musashi Fuel range to deliver the key nutrients required for optimal energy levels throughout training and competition.








Musashi sports nutrition supplements undergo a meticulous development process based on decades of experience, starting with comprehensive research to determine effective formulations. Once a product is formulated and optimised, it is produced in controlled facilities to ensure quality and consistency. Finally, before reaching the athletes, supplements are certified by organisations like Informed Sport to guarantee it's free of banned substances.

  1. Laboratory and product development experts meticulously research and test ingredients for world-class product quality, taste and efficacy.

  2. State-of-the-art facilities ensure precise, consistent, and high-quality production of sports nutrition supplements.

  3. Seal of approval: Rigorous testing guarantees our supplements are free from banned substances, ensuring athletes' safety and compliance.


At Musashi, we firmly believe in creating science-backed supplements. We understand that you rely on our products to enhance your performance and overall well-being. That's why we prioritise rigorous scientific research to formulate our products, ensuring precise ingredients, dosages, and formulations that have been proven to deliver results. By choosing Musashi, you can trust that we are committed to your health and success.

  • Essential amino acids (EAAs)

    EAAs are a group of nine amino acids that the body cannot produce on its own and must be obtained through the diet. These amino acids include histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. EAAs may enhance exercise performance by providing the necessary building blocks for muscle energy production and reducing muscle breakdown during exercise. These amino acids are found in high protein foods, both plant-based (like soy) and animal-based (like meat and dairy). Ancient cultures, such as the Incas, consumed quinoa, a good source of EAAs, as a staple in their diet.

  • Electrolytes

    The four electrolytes are sodium, potassium, calcium and magnesium. Electrolytes help maintain proper fluid balance, nerve function, muscle contractions, and overall cellular function. Adequate electrolyte balance can help sustain exercise performance by preventing fatigue, muscle weakness, and cognitive impairments associated with dehydration and electrolyte imbalances. Electrolytes are found in many foods, the most common is salt (sodium) but other natural electrolyte sources include bananas (potassium), dairy (calcium), and spinach (magnesium). In ancient times, marathon runners were known to consume salt and other minerals to replenish their electrolyte balance.

  • Caffeine

    Caffeine is an alkaloid compound which is found especially in tea and coffee plants and is a stimulant of the central nervous system, and is used to reduce the feeling of tiredness and fatigue. Caffeine has been shown to enhance endurance performance by increasing the availability of free fatty acids for energy utilization, sparing muscle glycogen. This can be particularly advantageous during longer-duration aerobic activities, such as distance running or cycling. Found especially in tea, coffee, and cacao plants, caffeine has been consumed for its stimulating effects since ancient times. Historical records indicate that coffee was consumed in Arabian Peninsula regions as early as the 15th century.

  • Citrulline

    Citrulline is an amino acid that plays a role in various physiological processes within the body, and can help with exercise through its impact on blood flow and the cardiovascular system. Citrulline contributes to reduced fatigue and ATP production, as well as muscle protein synthesis. Citrulline, named after the Latin word for watermelon, "citrullus", is naturally found in this fruit. It was first isolated from watermelon in the early 20th century.

  • Creatine

    Creatine is a molecule produced in the body and is a dietary precursor of Phosphocreatine which releases energy. Creatine can help to support energy production, enhance muscle strength and increase lean body mass during high intensity exercise and resistance training. Creatine may also help reduce muscle damage and inflammation following intense exercise. This can lead to a faster recovery period between workouts. It is found naturally in red meats and fish. Historically, the understanding of creatine and its potential benefits was first realized in the 1800s when it was discovered in skeletal muscle.

  • Beta Alanine

    Beta Alanine is an amino acid widely used to support endurance and strength training goals. Beta Alanine is the building block of carnosine, a molecule that acts to buffer acid in muscles, and has the ability to delay fatigue which can potentially lead to an increase in training volume. It's often found in foods such as meat, poultry, and fish. Athletes in ancient Greece were said to consume beet juice as a source of beta alanine to enhance performance.

  • Branched-Chain Amino Acids (BCAAs)

    Branched-chain amino acids (BCAAs) are a group of three essential amino acids: leucine, isoleucine, and valine. These amino acids are considered "essential" because the body cannot produce them on its own and must obtain them from the diet. BCAAs help with muscle protein synthesis, energy during exercise, and reduce delayed-onset muscle soreness and fatigue. These essential amino acids can be found in foods like chicken, beef, salmon, and eggs. Ancient civilizations, without the knowledge of BCAAs, still consumed these amino acids through their traditional diets rich in meats and fish.

  • B-Vitamins

    B-vitamins are a group of water-soluble vitamins that play essential roles in various metabolic processes within the body. While they don't directly provide energy like carbohydrates, proteins, and fats do, B-vitamins are critical for converting nutrients from food into energy that can be used by the body. Historically, a deficiency in certain B-vitamins was known to cause diseases like beriberi and pellagra. Foods rich in B-vitamins include whole grains, beans, peas, and nuts.


    The FUEL system emphasises the efficient use and replenishment of the body’s 3 primary energy systems: the creatine-phosphagen, anaerobic, and aerobic pathways. It supports optimal glycogen storage in muscles and the liver, ensuring athletes can perform at their peak during both high-intensity, short-duration bursts and longer endurance events.


    The human body relies on three primary systems to provide energy for different types of exercise. Each of three energy systems is used depending on the duration and intensity of physical activity:

    • Phosphagen (ATP) System – provides immediate energy for short bursts of high-intensity activity, such as sprinting and weight-lifting
    • Anaerobic System – provides energy for moderate to high intensity exercise, such as 1km intervals or high-rep weight-lifting. This system is fuelled by
    • Aerobic System – provides energy for activities that are longer in duration and lower in intensity, such as jogging and cycling

    Each system is fuelled by a combination of different nutrients and ingredients, including Creatine, B-Vitamins, Electrolytes, Carbs and Fat. Musashi’s Fuel range includes a variety of products that utilise these nutrients to fuel exercise intensity and optimise performance.