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What are the ingredients in SiS? A Comprehensive Breakdown

4 min read

Since 1992, Science in Sport (SiS) has been formulating nutritional products for elite athletes and enthusiasts, and the specific ingredients in SiS products are central to their performance-enhancing design. The composition varies significantly across product types, with energy gels focusing on rapid carbohydrate delivery and hydration tablets on replacing lost electrolytes.

Quick Summary

A breakdown of the ingredients in SiS products, examining the carbohydrate sources in energy gels and the electrolyte blend in hydration tablets. Includes analysis of other common components and product variations.

Key Points

  • Maltodextrin for Energy: SiS GO Isotonic Energy Gels use maltodextrin, a fast-absorbing carbohydrate from maize, for rapid energy delivery.

  • Electrolytes for Hydration: SiS GO Hydro Tablets contain a blend of electrolytes (sodium, potassium, calcium, magnesium) to replenish those lost in sweat without adding calories.

  • Isotonic Formula: SiS gels are isotonic, meaning they can be consumed without additional water, allowing for quick digestion.

  • Informed-Sport Certified: Many SiS products are rigorously tested for banned substances, making them a trusted choice for competitive athletes.

  • Product Variation: SiS offers product variations with different ingredient profiles, such as caffeine-enhanced gels and gels with added electrolytes, catering to specific training needs.

  • Vegan-Friendly: The GO Isotonic and Hydro product ranges are generally suitable for vegans and other dietary restrictions like gluten-free.

In This Article

The Core Ingredients in SiS Energy Gels

SiS is perhaps best known for its isotonic energy gels, a format designed to be consumed without additional water, ensuring rapid digestion and energy delivery. The primary ingredient across the SiS GO Isotonic Energy Gel range is a carbohydrate called maltodextrin, derived from maize.

Maltodextrin is a complex carbohydrate that is easily broken down and absorbed by the body, providing a quick release of energy to working muscles. Other common ingredients in the gels include:

  • Water: The main component, which gives the gel its isotonic properties.
  • Gelling Agents: Including gellan gum and xanthan gum, these create the gel's smooth, easy-to-swallow texture.
  • Natural Flavoring: Used to create the different fruit flavors.
  • Acidity Regulators: Citric acid and sodium citrate help stabilize the mixture and contribute to the flavor profile.
  • Preservatives: Such as sodium benzoate and potassium sorbate, to ensure product freshness.
  • Sweetener: Acesulfame K is used to provide sweetness without adding a significant amount of sugar.
  • Antioxidant: Ascorbic acid (Vitamin C) is included for its antioxidant properties.

The Electrolytes in SiS Hydro Tablets

The SiS GO Hydro effervescent tablets are formulated for hydration, replenishing the electrolytes lost through sweat without adding significant carbohydrates. The ingredients are specifically chosen to restore the body's fluid balance during exercise.

Key components in the tablets include:

  • Electrolyte Blend: A mix of sodium bicarbonate, sodium chloride, calcium carbonate, potassium chloride, and magnesium carbonate. These are vital for maintaining fluid balance and preventing cramping.
  • Citric Acid: Provides the effervescence and a tangy flavor.
  • Bulking Agent: Sorbitol helps form the tablet.
  • Inulin: A dietary fiber sometimes included for texture.
  • Natural Flavoring and Color: Provide taste and color.
  • Sweetener: Sucralose is a zero-calorie sweetener used to improve taste.
  • B Vitamins: Vitamins B1, B2, and B6 are added to support energy metabolism.

Ingredient Variations Across SiS Product Lines

While the GO Isotonic Gels and Hydro Tablets serve as foundational products, SiS offers a variety of specialized formulations with different ingredient profiles to meet specific athletic needs.

Caffeine-Enhanced Products

Some SiS products, like the GO Isotonic Energy + Caffeine Gels, incorporate caffeine to increase focus and endurance. Ingredients in these gels are similar to the standard isotonic version but with the addition of caffeine anhydrous. Similarly, caffeinated versions of the Hydro tablets include caffeine.

Electrolyte-Enhanced Gels

The GO Energy + Electrolyte Gels combine the carbohydrate source of the isotonic gel with added electrolytes like sodium, potassium, and magnesium, making them suitable for longer endurance events where sweat loss is a concern.

Recovery Products

SiS offers products designed for post-exercise recovery, such as REGO Rapid Recovery powders. These contain a blend of carbohydrates and protein to help replenish glycogen stores and repair muscle tissue, demonstrating a different ingredient focus from the energy and hydration products.

Comparison of Key SiS Product Ingredients

Feature SiS GO Isotonic Energy Gel SiS GO Hydro Electrolyte Tablet SiS GO Energy + Electrolyte Gel
Primary Function Rapid energy delivery Hydration and electrolyte replenishment Energy and electrolyte replacement
Carbohydrate Source Maltodextrin (from maize) Minimal carbs (<1g per serving) Maltodextrin (from maize)
Electrolyte Content Low sodium (approx. 0.01g) High (Sodium, Potassium, Calcium, Magnesium) Moderate (Sodium, Potassium, Magnesium)
Hydration Focus Not primary purpose; doesn't require extra water Designed for optimal hydration Dual focus on energy and hydration
Added Vitamins Ascorbic acid (Vitamin C) B vitamins (B1, B2, B6) Ascorbic acid (Vitamin C)
Calories Approx. 87 kcal per serving Approx. 9 kcal per serving Approx. 89 kcal per serving

Why SiS Uses These Specific Ingredients

The ingredient choices are backed by sports science, aiming to provide a functional benefit to athletes. For instance, maltodextrin is used over simple sugars in the isotonic gels because it allows for rapid gastric emptying, preventing stomach discomfort common with high-sugar drinks. The specific electrolyte balance in the Hydro tablets is calibrated to match the levels lost in sweat, optimizing rehydration. By offering a range of products with tailored ingredients, SiS enables athletes to choose the right fuel for their specific training needs, whether it's a quick burst of carb energy, calorie-free hydration, or a combined approach for longer efforts.

Conclusion

Ultimately, what are the ingredients in SiS is a question with a multifaceted answer, depending on the specific product. At their core, SiS's flagship products rely on maltodextrin for energy and a precise blend of electrolytes for hydration. The company's commitment to research and its wide range of product formulations, including those with caffeine and added electrolytes, allow athletes to customize their fueling strategies with scientifically-backed nutrition. For more on their research, visit the official Science in Sport's science page.

Frequently Asked Questions

Maltodextrin is a carbohydrate derived from maize that is easily digested and rapidly absorbed by the body. It is used in SiS energy gels to provide a quick and efficient source of energy to fuel performance during exercise.

Yes, many SiS products, including the GO Isotonic Energy Gels and Hydro tablets, are suitable for vegans, vegetarians, and often free from common allergens like gluten and nuts.

The amount of caffeine varies by product. For example, some caffeinated versions of the GO Hydro tablets contain 75mg of caffeine per serving, while caffeinated gels may have different amounts.

An Isotonic gel is primarily for carbohydrate energy, formulated for rapid digestion without extra water. An Electrolyte gel provides both carbohydrates and additional electrolytes to replace those lost during high-sweat sessions.

Yes, Science in Sport is committed to quality and safety. Their products are independently tested for banned substances and are part of the Informed-Sport certification program.

No, SiS Hydro tablets are designed for hydration and electrolyte replacement, not for weight loss. They contain very few calories and no sugar, making them ideal for hydration without impacting calorie intake.

B vitamins (specifically B1, B2, and B6) are included in SiS Hydro tablets to support the body's energy metabolism, helping to convert food into fuel, and to support the nervous system.

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.