SIS Nutrition
SiS, founded in 1992, has a core range comprising gels, powders and bars focused on energy, hydration and endurance. SiS is the official sports nutrition supplier to many professional teams and organisations including INEOS Grenadiers cycling team, Team Ineos UK (America's Cup Team), British Cycling, Cycling Australia, USA Cycling and USA Triathlon. SiS supplies more than 100 professional football clubs in the UK, Europe and USA, and is an official partner to Manchester United Football Club. SiS brand ambassadors include Olympians Sir Chris Hoy MBE, Mark Cavendish MBE and Adam Peaty MBE.
A clean, fast, and convenient way to prepare and use your drinks.
REGO helps you recover rapidly and ready for your next tough training session.
SIS 500G Refuel after those hard days in the saddle.
Single serving of SiS's renowned protein recovery powder.
18 x servings of SiS's renowned protein recovery powder.
With great-tasting flavours, our Science in Sport PROTEIN20 bar is a convenient on-the-go option made with a high-quality plant protein blend for athletes looking for an alternative high-protein snack option low in sugar.
With great-tasting flavours, our Science in Sport PROTEIN20 bar is a convenient on-the-go option made with a high-quality plant protein blend for athletes looking for an alternative high-protein snack option low in sugar.
Effervescent tablets to go straight in your drinks bottle
SiS GO Hydro is designed to ensure you are effectively hydrated to produce your best performance.
Designed for longer rides to keep you riding at your best.
Soft baked energy bake with a liquid centre from natural concentrate.
GO Energy Bakes offer a convenient and tasty option for on the go snacking, ideally consumed before or during exercise. Easy-to-consume for the athlete allowing for greater carbohydrate uptake. Energy during cycling.
SIS GO Electrolyte drink powder 500 g tub
SIS GO Electrolyte drink powder - 1.6 kg tub
A clean, fast, and convenient way to prepare and use your drinks. Water bottle 800 ml clear.
This Energy Gel is optimised with a brand new 1:0.8 ratio of 40g carbohydrates to enhance your power output, increase your body's carbohydrate usage efficiency, and limit gastrointestinal discomfort to deliver a scientifically superior fuel
This Energy Gel is optimised with a brand new 1:0.8 ratio of 40g carbohydrates to enhance your power output, increase your body's carbohydrate usage efficiency, and limit gastrointestinal discomfort to deliver a scientifically superior fuel
The most scientifically superior energy drink on the market
The most scientifically superior energy drink on the market
Each chew bar contains 46 grams of carbohydrate. Depending on your sport or event, you should aim to consume 1-3 chew bars every hour during exertion to reach an 80g-120g target intake.
Each chew bar contains 46 grams of carbohydrate. Depending on your sport or event, you should aim to consume 1-3 chew bars every hour during exertion to reach an 80g-120g target intake.
Designed as a world-leading, whole body energy source, our innovative Beta Fuel Dual Source Energy Gel + Nootropics combines a new ratio of carbohydrate with Cognizin Citicoline to improve both your physical and mental performance
The SiS GO Energy + Caffeine Gel 75mg builds on the established science of the SiS GO Isotonic Energy gel, the world's first isotonic energy gel
Get that boost for your final sprint or that long ride. Easy to consume on the go.
