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Official Sports Nutrition supplier


Science in Sport (SiS) is a leading endurance sports nutrition company, which develops, manufactures and markets sports nutrition products for professional athletes and sports enthusiasts. SiS are currently the official sports nutrition supplier to Katarina Johnson-Thompson, Team Sky, USA Cycling, British Cycling and British Triathlon.

SiS has a long history of supporting world class athletes, At the 2012 London Olympics, 24 medal-winning athletes or teams used SiS and at Rio 2016 another 34 medals were SiS Fuelled.

As Official Sports Nutrition supplier to British Triathlon, SiS will supply British Triathletes across both the Olympic and Paralympic National Lottery Funded Programmes.

The deal will see SiS working closely with British Triathletes, Performance, and Nutrition staff. SiS will support the Great Britain Triathlon and Paratriathlon Teams as they start their journey to 2020.  The British Triathlon Team will work directly with SiS and its team of sports nutrition experts to create bespoke nutritional strategies to fuel their world-class athletes. Nutrition plans will be tailored for each individual athlete and will include a wide range of SiS products, including the SiS’ isotonic GO Gels for energy, REGO Rapid Recovery to aid recovery after exercise and innovative WHEY20 protein product.

Find out more about SiS at

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