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Beta Fuel Energy Drink

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Science in Sport Beta Fuel Energy Drink is a performance-optimised drink mix designed for endurance athletes tackling long training sessions or races lasting over two hours. Developed through extensive research and elite athlete feedback, this high-carb drink provides 80g of carbohydrate in an innovative 1:0.8 maltodextrin to fructose ratio, making it easier for the body to absorb and use fuel efficiently.

  • Scientifically proven 1:0.8 ratio improves energy efficiency
  • Delivers 80g of fast-absorbing carbohydrate per serving
  • Enhances power output and endurance during intense exercise
  • Reduces symptoms of fullness and gut discomfort
  • Mixes easily into a smooth, isotonic drink
  • Trusted by elite endurance athletes

Beta Fuel Energy Drink

Visit the SiS store

€3,90
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How to use?

Mix one sachet (82g) with 600ml of water. Shake well and sip steadily throughout your session.

👉 Calculate how much you need here

When to use?

Ideal for use during endurance activities lasting over two hours, especially races or intense training blocks.

Why do I need this?

To fuel long efforts effectively, minimise stomach discomfort, and maintain peak performance throughout.

Who uses this?

Elite runners, triathletes, cyclists, and endurance athletes who need high-performance fuelling.

Description

Unlike traditional 2:1 carbohydrate mixes, Beta Fuel’s 1:0.8 ratio has been scientifically proven to enhance carbohydrate oxidation by 17% and improve mean power output by 3% during high-intensity efforts. It delivers steady energy with fewer digestive issues, ensuring athletes can maintain intensity without being held back by nausea or gut upset. Whether you're racing or deep into a tough training block, Beta Fuel is engineered to help you go further and faster.

The powder mixes easily with water to form a smooth, isotonic drink that is gentle on the stomach and fast-acting. It forms part of the Beta Fuel fuelling system, which includes gels and chews, allowing athletes to mix and match based on preference while consistently hitting carbohydrate targets.

Beta Fuel isn’t just a drink, it’s a strategic fuelling tool built for performance, delivering a competitive advantage when it matters most. Backed by published research and real-world results, it’s trusted by elite runners, cyclists, and triathletes worldwide.

How does it work

Beta Fuel works by delivering a precise 1:0.8 ratio of maltodextrin to fructose, providing 80g of carbohydrate in a single drink. This blend has been clinically shown to increase carbohydrate oxidation by 17% and improve mean power output by 3%, enabling athletes to access more energy from each serving. Compared to traditional mixes, this ratio also reduces gut strain, with 74% of carbs efficiently absorbed by the body (vs 62% in 2:1 formulas). The result is smoother digestion, sustained energy, and enhanced performance without gastrointestinal discomfort.

Nutrition

Single Serve / Orange

Serving Size: 1 Sachet

Net Weight: Liquid error (sections/xmiles-product line 637): Invalid number

Serving Per Container: 1

Amount Per Serving
Calories 320kcal
Fat 0g
Carbohydrate 80g
- of which sugars 45g
Protein 0g
Salt 0.01g

Ingredients

Directions of use

Mix one sachet with 600ml of water, shake thoroughly, and sip consistently during endurance activity.

About SiS

SiS believe that the most sophisticated piece of sports equipment you’ll ever own is your body. If you don’t put high performance sports nutrition in, you won’t get your full potential out.

Their range of products are researched and developed by sports scientists in conjunction with international athletes. This scientific research underpins everything we do to ensure that all our products meet the exacting standards of Informed Sport. This means that everything we do and every personal best you achieve with us, is FUELLED BY SCIENCE.