SIS Beta Fuel Gels - 30 pack

Neutral Flavour

£60.00

A high-carb energy gel with an optimised 1:0.8 maltodextrin:fructose ratio, delivering 40g carbohydrate per gel with 30-50% more fuel than standard gels, Informed Sport certified, selected by the PEAK4 expert team.

£60.00

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PEAK4 Experts' Review

The PEAK4 expert team selected SIS Beta Fuel Gel for its measurable oxidation improvement, from 62% to 74%, not just a marketing claim.

Details

Brand SIS

Tear open and consume the entire gel directly from the packaging. Aim for 1-3+ gels every hour during exertion, working towards an 80-120g carbohydrate target intake per hour.

Water, Maltodextrin (30%), Fructose (23%), Flavourings, Acidity Regulators (Citric Acid, Sodium Citrate), Gelling Agents (Gellan Gum, Xanthan Gum), Preservatives (Sodium Benzoate, Potassium Sorbate), Sodium Chloride.

No major allergens declared.

Informed Sport Certified

Key Benefits

40g Carbohydrate

Double a standard energy gel, for the highest energy demands.

40g carbs

74% Oxidation Efficiency

Up from 62% versus a standard 2:1 ratio.

74% oxidised

Reduced Stomach Fullness

The 1:0.8 ratio is gentler than higher-ratio gels.

Gut-friendly

Informed Sport Certified

Every batch is third-party tested under the Informed Sport programme, giving athletes at all levels confidence that the product is free from prohibited substances.

Batch Tested

Science in Sport (SIS)

The PEAK4 expert team selects SIS for its Informed Sport Site and Product Certification, the only sports nutrition brand globally to hold both, backed by the full PEAK4 performance ecosystem and free UK delivery over £50.

Dual Informed Sport certified

SIS Beta Fuel Gel — 40g Carbs, 1:0.8 Ratio
The PEAK4 expert team selected SIS Beta Fuel Gel for its optimised 1:0.8 maltodextrin-to-fructose ratio, delivering 40g of carbohydrate per gel with 30-50% more fuel than standard gels while keeping the gut comfortable.

This ratio increases the percentage of ingested carbohydrate that's oxidised from 62% to 74% compared to a 2:1 ratio, and reduces self-reported stomach fullness, making it suitable for the highest carbohydrate intake targets during long, demanding efforts.

A 1:0.8 ratio of maltodextrin to fructose increases the percentage of ingested carbohydrate that is oxidised (used for energy) from 62% to 74% compared to the more common 2:1 ratio, while also reducing self-reported symptoms of stomach fullness.

How to use

Tear open and consume the entire gel directly from the packaging. Aim for 1-3+ gels every hour during exertion to reach an 80-120g carbohydrate target intake.

Format

Box of 30 gels, 60ml each.

Nutritional Information

Frequently Asked Questions

How much carbohydrate does each Beta Fuel Gel contain?

40g per gel, 30-50% more fuel than standard energy gels.

Why the 1:0.8 ratio specifically?

This ratio increases the percentage of carbohydrate oxidised from 62% to 74% compared to a 2:1 ratio, and reduces self-reported stomach fullness during exercise.

How many gels should I consume per hour?

1-3+ gels per hour during exertion, aiming for an 80-120g carbohydrate target intake, depending on your sport or event.

Is Beta Fuel Gel Informed Sport tested?

Yes, tested under the Informed Sport programme and confirmed free from banned substances.

Is this gel suitable for very long endurance events?

Yes, it's designed as a whole-body energy source specifically optimised for higher carbohydrate intake targets during long, demanding efforts.

Why buy this from PEAK4?

The PEAK4 expert team selects SIS for its rigorous testing standards. Orders over £50 qualify for free UK delivery.