GO Isotonic Energy Gel 60ml - Single Unit (Fruit Salad) vs Beta Fuel 60ml + Nootropics Gel - 6 Pack (Lemon & Lime) vs Beta Fuel Gel + Electrolyte 60ml - Single Unit (Raspberry & Lemon)

  • 3 products side by side
  • From each brand's label
The short answer

The Science In Sport series offers diverse options with varying carbohydrate delivery, caffeine, and electrolyte content to suit different endurance needs. The GO Isotonic Energy Gel is a basic option, ideal for shorter events, while Beta Fuel with Nootropics offers higher carb and caffeine content for intense sessions. Beta Fuel Gel + Electrolyte provides additional sodium for hot conditions.

FigureGO Isotonic Energy Gel 60ml - Single Unit (Fruit Salad)GO Isotonic Energy Gel 60ml - Single Unit (Fruit Salad)Science In SportBeta Fuel 60ml + Nootropics Gel - 6 Pack (Lemon & Lime)Beta Fuel 60ml + Nootropics Gel - 6 Pack (Lemon & Lime)Science In SportBeta Fuel Gel + Electrolyte 60ml - Single Unit (Raspberry & Lemon)Beta Fuel Gel + Electrolyte 60ml - Single Unit (Raspberry & Lemon)Science In Sport
FormGelGelGel
Serving60ml60ml60ml
Price per servingR44 (best)R77.50R75
Carbs per R105 g5.2 g5.3 g (best)
Value score2.9/105.5/105.7/10 (best)
Energy87 kcal159 kcal160 kcal
Carbs22 g40 g (best)40 g
Sugar0.6 g19 g19 g
Protein0 g0 g0 g
Fat0 g0 g0 g
Sodium10 mg40 mg530 mg
CaffeineNone200 mgNone
Carb typeMaltodextrindual-sourceMaltodextrin
Glucose to fructose1:01:0.81:0.8
Glycaemic index———
Scores out of 100, from each product's write-up
ScoreGO Isotonic Energy Gel 60ml - Single Unit (Fruit Salad)Beta Fuel 60ml + Nootropics Gel - 6 Pack (Lemon & Lime)Beta Fuel Gel + Electrolyte 60ml - Single Unit (Raspberry & Lemon)
Energy delivery608090
Digestibility908090
Taste707070
Value406057
Convenience909085
Key differences
  1. GO Isotonic Gel lacks caffeine, suitable for caffeine-sensitive athletes.
  2. Beta Fuel with Nootropics includes a significant caffeine dose for mental focus.
  3. Beta Fuel Gel + Electrolyte contains substantial sodium levels for hot conditions.
  4. Only Beta Fuel variants use dual-source carbs to maximize carb absorption.
Race day

How each one works, by distance

Head to head

The GO Isotonic Energy Gel is well-suited for a 5k, providing quick energy without complicating the situation with caffeine or excessive carbs.

GO Isotonic Energy Gel 60ml - Single Unit (Fruit Salad)

For a 5k, the gel may not be necessary due to the short duration. Focus on pre-race nutrition instead.

Beta Fuel 60ml + Nootropics Gel - 6 Pack (Lemon & Lime)

For a 5k race, the gel's high carb content and caffeine are excessive. Focus on hydration and a light carb source instead.

Beta Fuel Gel + Electrolyte 60ml - Single Unit (Raspberry & Lemon)

For a 5k race, this gel is not necessary due to the short duration. Focus on pre-race hydration and a balanced meal instead.

The verdict by situation

Gut risk

The GO Isotonic Gel has the lowest GI distress risk due to its isotonic nature. The Beta Fuel options have a higher risk, particularly for athletes not accustomed to higher fructose intake.

Carb ceiling

GO Isotonic Gel is limited by its single-source, allowing 60 g/h. The Beta Fuel gels offer higher delivery at approximately 80-100 g/h due to dual-source carbs.

For beginners

Beginners may start with the GO Isotonic Energy Gel, which is straightforward and easy to digest without water. It provides a quick energy boost suitable for shorter training sessions.

For experienced athletes

Experienced athletes should consider Beta Fuel + Nootropics or Beta Fuel + Electrolyte for long and hot races, offering multi-source carbs and optional caffeine boost for improved stamina and focus.

Best value

Despite the higher price, the Beta Fuel Gel + Electrolyte offers the best value for long endurance events in hot climates due to its balanced carb sources and high sodium content.

Final verdict

Science In Sport's range meets various endurance needs with options like GO Isotonic Gel for shorter races and Beta Fuel variants for longer and more demanding sessions. Athletes should choose based on race length, heat, and personal tolerance levels.

In the app

Picked your fuel? Put it in your plan.

Glyco places it on your race course by time, at the rate your gut can take, and tracks what you actually used.

A race plan with fuel placed on the course, in the Glyco app