Science in Sport (SiS)

Samantha Harrison running with SiS bottle

Science in Sport (SiS) is the Official England Athletics nutrition partner.

Science in Sport (SiS) is the world leader in endurance nutrition, with unrivalled elite insight and world-class science fuelling its athletes. This makes SiS the number 1 nutrition brand used by elite endurance athletes.

As the nutrition partner of England Athletics, SiS will work closely with the teams to offer nutritional advice and supply the products required to provide athletes with optimal performance solutions across the nutritional need states of Energy, Hydration, and Recovery. SiS is committed to supporting each athlete to reach their individual goal.

Since 1992, SiS has fuelled Olympians, World Record Holders and World Champions from Cyclists to Swimmers and Heptathletes to Runners. SiS is the official sports nutrition partner to over 320 elite athletes and professional sports teams including the INEOS Grenadiers cycling team, Tottenham Hotspur FC and the Milwaukee Bucks basketball team. Recently it signed a multi-year partnership with women’s marathon world champion Gotytom Gebreslase and the Elite Running Team, positioning itself as the number-one brand in endurance running.

Jessie Knight hurdling in England Athletics Kukri kit

Our experts, combined with feedback from elite athletes, ensures SiS continues to be at the forefront of product innovation in endurance nutrition. As part of the partnership, SiS will be providing dedicated support to the England Athletics Marathon Programme, with the intention of redefining the fuelling guidelines for elite marathon runners.

Not only will registered athletes from England Athletics affiliated clubs have access to  SiS’s complete endurance nutrition range, but selected athletes will also participate in research studies to inform practice and performance for the brand’s next generation of custom-made products.

Website and Social Media