Science in Sport (SiS) is a leading global brand in sports nutrition for cyclists, triathletes, runners, and other endurance athletes. Since its founding in 1992, SiS has focused on scientifically proven nutritional products that help athletes perform optimally, recover faster, and maintain peak performance for longer. SiS products are developed in collaboration with sports scientists, nutritionists, and elite athletes.
Whether you're training for your first gran fondo, riding daily, or competing at a world-class level: with SiS you're choosing quality, safety, and proven effectiveness.
The benefits of Science in Sport sports nutrition
- Scientifically proven formulas
- ISO-certified production and fully doping-tested (Informed Sport)
- Easily absorbed, gentle on the stomach
- Wide range for every moment: before, during and after exercise
SiS product categories – Complete nutrition for every moment
1. Energy Gel (SiS GO Isotonic Energy Gel)
The best-known SiS products are the GO Isotonic Energy Gels. These gels are unique because they don't require any additional water. This makes SiS perfect for long rides or races. The isotonic composition ensures rapid absorption without stomach upset.
2. Energy Drinks (SiS GO Electrolyte & Beta Fuel)
SiS offers high-quality sports drinks that replenish your energy and electrolytes while cycling or running. Think GO Electrolyte for hydration and Beta Fuel with 80-90g carbohydrates per serving for extreme endurance efforts.
3. Bars (SiS GO Energy Bars)
Compact and easily digestible energy bars, perfect as a supplement to gels and drinks during endurance training or as a pre-race nutrition.
4. Recovery drinks (SiS REGO Rapid Recovery)
After a tough workout or competition, recovery is essential. SiS REGO Recovery provides an optimal mix of carbohydrates, proteins, and electrolytes to accelerate muscle recovery.
5. Supplements (SiS Creatine, Beta Alanine, Vitamin D)
For athletes who want that little bit extra, SiS offers various supplements that support sports performance and keep the body healthy.
6. Hydration & Electrolytes (SiS Hydro Tabs)
For workouts with low energy requirements but high fluid loss (e.g., on hot days), SiS Hydro tablets are ideal. Simply add them to water for rapid rehydration.
Applications of SiS sports nutrition
SiS sports nutrition is perfectly tailored to endurance athletes who want to perform responsibly. SiS is suitable for:
- Cycling, mountain biking & gravel riding
- Running & trail running
- Triathlon & duathlon
- Mountain biking & adventure racing
- Team sports with intensive efforts
Whether you're planning a long endurance ride, competing multiple times a week, or simply want to improve your performance, SiS has the right nutrition for every goal.
Why choose Science in Sport?
- Scientifically supported, sports nutrition with proven effectiveness
- Fully tested for doping, which means safe for competitive athletes
- Used by top teams such as INEOS Grenadiers
- Mild on the stomach and easily absorbed
- Wide range for every phase of sporting endeavor
With SiS you are assured of reliable, high-quality sports nutrition, tailored to the specific needs of endurance athletes.
Main competitors of SiS (Science in Sport)
Although SiS holds a leading position in sports nutrition for endurance athletes, there are several other strong brands active in the same market:
Maurten
- Innovative hydrogels and sports drinks
- Widely used in the running world (including by Eliud Kipchoge)
- Less wide range than SiS, but very performance-oriented
- One of the oldest brands in sports nutrition
- Strong in bars, gels and sports drinks
- Widely available and well priced
HIGH5
- Known for their fruity energy drinks and simple gels
- Budget-friendly, popular with recreational and amateur users
Clif Bar
- Bars with natural ingredients, often slightly heavier
- Aimed at adventure sports enthusiasts and outdoor enthusiasts
Enervit
- Italian brand of sports nutrition and supplements
- Active in the triathlon and cycling world, used by WorldTour teams
- Dutch brand with a strong focus on natural sports nutrition
- Widely used by local cyclists and runners
Buy SiS at CC5311
At Cycle Center Zaltbommel, you'll find a wide range of SiS sports nutrition products, perfect for training, competition, and recovery. We deliver quickly from our own stock. Thanks to competitive prices, professional advice, and a large inventory, CC53-11 is the perfect place for your sports nutrition strategy.
