SiS Beta Fuel Dual Source Energy Chews (60g Bar)
Scientifically Evolved 1:0.8 Ratio | 46g Fast-Acting Carbohydrates | Solid Intra-Workout Fuel
SiS Beta Fuel Dual Source Energy Chews offer a premium, whole-food alternative to traditional energy gels, delivering a massive 46g of fast-acting carbohydrates in a highly satisfying, easy-to-chew bar format. Engineered specifically for endurance athletes facing exhausting training demands exceeding two hours, this world-leading formula utilizes a scientifically superior 1:0.8 Glucose-to-Fructose ratio. By maximizing your body’s carbohydrate oxidation efficiency while strictly preventing gastrointestinal distress, these chews provide an optimal, steady supply of energy to enhance and maintain peak physical power output.

Key Performance & Science Benefits
- Evolved 1:0.8 Dual-Source Ratio: Replaces the traditional 2:1 ratio to amplify your body’s carbohydrate oxidation efficiency from 62% to 74%. This allows your system to utilize 17% more carbohydrates for elevated power outputs during maximal sprint efforts.
- Heavy-Hitting 46g Energy Payload: Packs double the carbohydrate density of standard sports gels into a single, compact chew bar to easily help you hit elite hourly endurance targets.
- Drastically Reduced GI Discomfort: The 1:0.8 glucose-to-fructose matrix is clinically proven to minimize symptoms of stomach fullness, bloating, and training-induced nausea, passing smoothly through the gut under intense physical exertion.
- Versatile & Adaptable Consumption: The solid yet tender texture can be eaten as a single complete bar or easily broken down into 7 individual chew pieces (yielding approx. 7g of carbs per bite) for a highly customized, steady pacing strategy.
- Streamlined Multi-Format Integration: Designed to work seamlessly alongside the entire world-leading Beta Fuel ecosystem (including specialized drinks and gels), making elite macro loading simpler than ever.
- Tested for Safe Sport Performance: Independently verified to ensure zero exposure to banned substances, giving competitive and professional athletes absolute compliance assurance on race day.

What Is In SiS Beta Fuel Dual Source Energy Chews?
Serving Size: 1 Chew Bar (60g)
| Typical Values | Per 60g Serving Bar | Per 100g |
| Energy | 310 kJ / 186 kcal | 1314 kJ / 788 kcal |
| Carbohydrate | 45 g (Provides 46g total source carbs) | 75 g |
| — of which Sugars | 41 g | 67 g |
| Fibre | 2.2 g | 3.7 g |
| Salt | 0.11 g | 0.18 g |
| Fat | 0 g | 0.0 g |
| — of which Saturates | 0 g | 0.0 g |
| Protein | 0 g | 0.0 g |
Usage & Elite Fuelling Protocol
- Intra-Workout Dosing: Depending on your specific sport, duration, and target, aim to consume 1 to 3 chew bars every hour during active physical exertion.
- Elite Macro Targeting: Pair these chew bars with other advanced energy supplements within the specialized SiS Beta Fuel lineup to consistently hit the master endurance standard of 80g–120g of carbohydrates per hour.
- Application Method: Simply tear open the pocket-friendly wrapper, slide out the bar, and consume it whole, or pre-slice it into separate chews for easy consumption on complex bike or running trails.

Ingredients
Sugar, Water, Glucose Syrup, Fructose Syrup, Gelling Agent (Pectin), Flavouring, Acidity Regulator (Citric Acid), Corn Starch, Glazing Agent (Coconut Oil, Carnauba Wax), Colour (Turmeric Extract).
Dietary Suitability: Crafted using clean ingredients, making this solid-fuel matrix fully suitable for various endurance training dietary frameworks.
Warnings: Use exclusively as part of a varied, balanced diet and a healthy, active lifestyle. Store in a cool, dry place out of direct sunlight.
- Stock: In Stock
- Brand: Science in Sport