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Science in Sport (SiS) believe that the most sophisticated piece of sports equipment you’ll ever own is your body. If you don’t put high performance sports nutrition in, you won’t get your full potential out.
Their range of products are researched and developed by sports scientists in conjunction with international athletes. This scientific research underpins everything we do to ensure that all our products meet the exacting standards of Informed Sport. This means that everything we do and every personal best you achieve with us, is FUELLED BY SCIENCE.
Since 1992, Science in Sport has fuelled Olympians, World Record Holders and World Champions from Cyclists to Swimmers and Heptathletes to Runners.
Science in Sport is currently the official sports nutrition partner to the INEOS Grenadiers, Elite Running Team, Saracens and Tottenham Hotspurs. SiS is also the partner of other high performing elite athletes such as Eilish McColgan, Sir Chris Hoy and athletes from the University of Loughborough. Globally, Science in Sport fuels over 150 professional soccer clubs and is Performance Research Partner to the England Football Association.
Their experts, combined with feedback from the elite athletes, ensure Science in Sport continues to be at the forefront of product innovation in performance nutrition. Our passion means our products are truly trusted and recommended.
Fluid is best absorbed when delivered as part of a carbohydrate-electrolyte drink, so SiS GO Electrolyte is the primary option for hydration and energy in events longer than 90 minutes.
The main difference between the two products is the carbohydrate content. SiS REGO Rapid Recovery has 25g of carbohydrate and 20g of protein per serving. It is best to use it for after training sessions which have significantly depleted your glycogen stores, such as long endurance or high intensity sessions.
SiS Whey Protein contains 23g protein per serving, with less than 2g each of carbohydrate or fat per serving. This makes it a convenient source of high quality protein with very little else, ideal for supporting your lean muscle mass.
No, they were designed to make it easy for an athlete to take an energy boost that is convenient during exercise and light on the stomach. More concentrated gels, particularly those which contain simple sugars such as glucose and fructose are more likely to cause gastric distress. No additional water is needed to help the absorption of SiS GO Isotonic gels, but you should still drink to remain hydrated during your activity.
Introducing the GO Energy Bar Mini, a power-packed snack designed to fuel your body during intense exercise and keep you energized throughout your...
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SiS' GO Isotonic Energy Gel is an award-winning and highly acclaimed product designed to provide athletes with a convenient and effective source o...
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The SIS Original Isotonic GO Energy Gel with added electrolytes is a powerful tool for assisting with hydration and maintaining performance during...
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REGO Cherry Juice is a premium recovery aid formulated from 100% Montmorency cherries. This tart, concentrated juice is naturally packed with anth...
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GO Energy + Caffeine Gel is an exceptional energy gel meticulously crafted for high-intensity competitions and endurance events. This innovative g...
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Introducing the Beta Fuel Dual Source Energy Gel, a groundbreaking addition to our world-leading fuelling solution range. Engineered with a revolu...
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Are you an endurance athlete seeking a cutting-edge fueling solution to assist with your performance and push your limits? Look no further than Be...
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SiS REGO Rapid Recovery Powder stands at the forefront of post-exercise recovery supplements, offering a cutting-edge formula meticulously designe...
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Introducing the Beta Fuel + Nootropics Energy Gel: an evidence-based fuel designed to elevate both your physical and mental power output. This cut...
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Introducing the Science in Sport Beta Fuel Energy Drink, the most scientifically superior fuel on the market. Trusted by top-tier athletes, this r...
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GO Hydro Electrolyte is not just your ordinary hydration solution; it is a true game-changer when it comes to enhancing performance through optima...
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The GO Isotonic Energy Gel Variety Pack offers a convenient and effective way to replenish your carbohydrate stores during exercise, helping to co...
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GO Electrolyte Powder is a specially formulated sports drink designed to provide athletes and fitness enthusiasts with the perfect combination of ...
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Introducing Science in Sport's revolutionary product, 100% Pure Beta Alanine! Designed to assist with your performance during short bouts of high-...
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Collagen+ is a scientifically formulated supplement designed to enhance joint mobility and support overall joint, bone, and ligament health. It is...
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Indulge in the refreshing taste of REGO Whey Recovery, a premium protein drink crafted to invigorate your body after short, less intense bursts of...
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The REGO Clear Recovery supplement is meticulously crafted to facilitate post-exercise recovery, combining 20g of clear whey protein with 21g of c...
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Ideal for successive bursts of short-term, high intensity exercise. High quality version of one of the most commonly used sports supplements. 5g o...
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GO Energy Powder is a highly effective and easily digestible carbohydrate supplement that provides a quick supply of energy. This versatile produc...
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