SiS

SiS BETA + Electrolyte Gel

~~£2.50~~ £1.99 Sale

40g of dual-source carbohydrate with 200mg sodium per gel for endurance fuelling during long efforts.

Quantity Size: Single Serve

Single Serve Box of 6 Gels Box of 30 Gels

Flavour: Raspberry & Lemon

Raspberry & Lemon

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SiS BETA Fuel + Electrolyte Gel is designed for endurance athletes who want carbohydrate and sodium in one portable serving. Each gel delivers 40g of dual-source carbohydrate plus 200mg sodium for use during longer training sessions and races.

The 1:0.8 maltodextrin-to-fructose formulation can fit into higher-carbohydrate fuelling plans, while the added sodium helps athletes account for their electrolyte intake. The Raspberry & Lemon gel is available individually and in multipacks for regular training or event preparation.

Product Specifications

Product: SiS BETA Fuel + Electrolyte Gel
Product Type: Dual-source carbohydrate energy gel with added electrolytes
Format: Single-serve gel sachet
Serving Size: 1 gel
Calories Per Gel: 160 kcal
Carbohydrate Per Gel: 40g
Sugars Per Gel: 19g
Fat: 0g
Protein: 0g
Salt: 0.53g
Sodium Per Gel: 200mg
Carbohydrate Ratio: 1:0.8 maltodextrin-to-fructose ratio
Primary Use: High-carbohydrate fuelling with electrolyte support during endurance exercise
Best For: Running, cycling, triathlon, marathons, sportives, ultra-distance events, hot-weather training and high sweat-rate sessions
Recommended Session Length: Designed for endurance exercise lasting over 2 hours
Suggested Use: Consume 1 gel every 20 minutes during endurance training or racing
Carbohydrate Target Guidance: Supports higher fuelling strategies of up to 80–120g carbohydrate per hour
Available Sizes: Single Serve, Pack of 6 and Box of 30
Available Flavour: Raspberry & Lemon
Dietary / Certification Notes: Vegan and Informed Sport certified
Key Features: 40g carbs per gel, 200mg sodium, dual-source carbohydrate, 1:0.8 carb ratio, electrolyte support and endurance-focused race-day fuelling

Why We Choose SiS

We choose SiS - Science in Sport because they create trusted sports nutrition products designed to help athletes fuel, hydrate and recover with confidence. From isotonic energy gels and electrolyte tablets to recovery drinks and advanced endurance fuelling, SiS supports runners, cyclists, triathletes and active individuals before, during and after training and racing.

Science-Led – Developed with a clear focus on sports science, performance nutrition and real-world athlete needs.

Easy to Use – Practical fuelling solutions such as isotonic energy gels that are simple to take during exercise, with no unnecessary complexity.

Endurance Focused – Designed to support sustained energy, hydration and recovery across running, cycling, triathlon and high-intensity training.

Trusted by Athletes – Used by everyday athletes and elite performers who need reliable nutrition when performance matters.

That’s why SiS is part of the North Sports collection — giving you proven sports nutrition to fuel harder sessions, support recovery and perform at your best.