NUTRITIONAL PARTNER

OFFICIAL NUTRITION PARTNER
SCIENCE IN SPORT
We’re thrilled to announce that Science in Sport (SiS) is now the official nutritional sponsor of the 2025 Ultra Challenge Series! SiS, the leader in sports nutrition, will be powering your journey with a range of products available at rest stops from energy bars to electrolyte drinks, and exclusive discount for all challengers to help their training and event day fuelling, as well as support and guides to help you stay healthy, energised and hydrated.
EVENT DAY ENERGY
Every challenger needs energy to conquer their distance. A range of Science in Sport products will be available at the rest stops across all Ultra Challenge events to help you maintain your pace and prevent fatigue.




The Importance of Race Day Nutrition
Research shows endurance lasting over 2 hours requires 80-120g carbohydrate intake per hour. Through practicing your event day fuelling strategy during training, by the time you hit the start line, your body will have adapted to digesting on the go. Science in Sport offers a range of products to help you meet your carbohydrate targets and start the challenge optimally fuelled.
RACE FUELLING BUNDLES
After a sports nutrition race pack with easy-to-understand guidance on how to use each product and when? We’ve got just the thing to unlock your true performance potential.


Fuelled By Science.
Proven By Performance.
Trusted By Elites.
Science in Sport develops a wide range of sports nutrition products for professional and amateur athletes. Driven by an obsessive focus on performance and innovation, adopting world-class scientific research alongside continuous athlete feedback.
Member Benefits
Create an online account and become a SiS+ member for free to access exclusive member only benefits.
