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Science in Sport

GO Isotonic Gel

8.2Good

Thinner isotonic gel with 22g carbs (~87 kcal) per 60ml sachet — designed for runners who want an easy-take gel that typically needs little or no extra fluid at the moment of use.

  • Energy Gels
Science in Sport GO Isotonic Energy Gel
  • Best forEnough of what is built for without stretching it into another job.
  • CategoryNutrition & Fuel

Overview

Thinner isotonic gel with 22g carbs (~87 kcal) per 60ml sachet — designed for runners who want an easy-take gel that typically needs little or no extra fluid at the moment of use.

Buy the GO Isotonic Gel when thinner isotonic gel with 22g carbs (~87 kcal) per 60ml sachet — designed for runners who want an easy-take gel that typically needs little or no extra fluid at the moment of use.. It earns a look for thinner isotonic texture is approachable for gel beginners. Look elsewhere if 22g carbs means more packets to hit high hourly carb targets.

  • Thinner isotonic texture is approachable for gel beginners
  • Widely available and strong value per serving
  • Broad flavour range for training variety

Kitletics Review · 8.2 Good

Science in Sport GO Isotonic Energy Gel is a energy gel (22 g carbs/serving; no caffeine). Thinner isotonic gel with 22g carbs (~87 kcal) per 60ml sachet — designed for runners who want an easy-take gel that typically needs little or no extra fluid at the moment of use. I'd shortlist it for thinner isotonic texture is approachable for gel beginners. The trade-off is 22g carbs means more packets to hit high hourly carb targets — GU Energy Gel is the cleaner compare when that is most of your week. It fits buyers who actually need a energy gel (22 g carbs/serving; no caffeine), not a one-product rotation.

Read Kitletics Review →

Performance scores

  • Format9.0
  • Carbohydrate delivery7.4
  • Caffeine preference9.0
  • Carrying9.0
  • Taste / texture8.6
  • Race use7.8

Overall score: 8.2

Pros & cons

Pros

  • Thinner isotonic texture is approachable for gel beginners
  • Widely available and strong value per serving
  • Broad flavour range for training variety

Cons

  • 22g carbs means more packets to hit high hourly carb targets
  • Single-source carb profile vs modern dual-carb race gels
  • Less carb-dense than Beta Fuel / PF30 / Gel 160 formats

How it fits different uses

Use caseScore

Short Training

Approachable gel for shorter sessions and gel newcomers.

88

Easy-to-Carry Fuel

Easy vest/belt carry for everyday training gels.

86

Kitletics Review

A buying decision based on structured product data and evidence — not invented star ratings or fake user reviews.

Kitletics Review

Verdict

Science in Sport GO Isotonic Energy Gel is a energy gel (22 g carbs/serving; no caffeine). Thinner isotonic gel with 22g carbs (~87 kcal) per 60ml sachet — designed for runners who want an easy-take gel that typically needs little or no extra fluid at the moment of use. I'd shortlist it for thinner isotonic texture is approachable for gel beginners. The trade-off is 22g carbs means more packets to hit high hourly carb targets — GU Energy Gel is the cleaner compare when that is most of your week. It fits buyers who actually need a energy gel (22 g carbs/serving; no caffeine), not a one-product rotation.

Expert Research

Last reviewed 9 September 2026

Read full review

Pros

  • Thinner isotonic texture is approachable for gel beginners
  • Widely available and strong value per serving
  • Broad flavour range for training variety

Cons / Trade-offs

  • 22g carbs means more packets to hit high hourly carb targets
  • Single-source carb profile vs modern dual-carb race gels
  • Less carb-dense than Beta Fuel / PF30 / Gel 160 formats

Best for

  • Enough of what is built for without stretching it into another job.
  • Over a generalist when energy gel (22 g carbs/serving; no caffeine) is the weekly filter.
  • Widely available and strong value per serving.
  • Broad flavour range for training variety.

Not ideal for

  • Those looking for 22g carbs means more packets to hit high hourly carb targets.
  • Those looking for different tool when this role is not your week.
  • Those looking for GU Energy Gel when a energy gel (22 g carbs/serving; no caffeine) is not.
  • Those looking for Single-source carb profile vs modern dual-carb race gels.

Performance breakdown

  • Performance7.8
  • Value7.6
  • Build quality7.7

Scale: Poor (1–3) · Fair (4–5) · Good (6–7) · Very Good (8) · Excellent (9–10)

How it performs

What it is

Science in Sport GO Isotonic Energy Gel is a energy gel (22 g carbs/serving; no caffeine). Thinner isotonic gel with 22g carbs (~87 kcal) per 60ml sachet — designed for runners who want an easy-take gel that typically needs little or no extra fluid at the moment of use. I'd.…

Key specs

Science in Sport GO Isotonic Energy Gel — published figures worth using as filters: • type: gel • serving size: 60ml sachet • calories: 87 • carbs per serving: 22 • sugars: 0.6 • caffeine: no • protein: 0 • fluid required: Low — marketed as isotonic / often without extra water

Fit & daily use

Fit has to work for a energy gel (22 g carbs/serving; no caffeine), not as a one-size story. Thinner isotonic gel with 22g carbs (~87 kcal) per 60ml sachet — designed for runners who want an easy-take gel that typically needs little or no extra fluid at the moment of use. If.…

Performance

Everyday performance is the energy gel (22 g carbs/serving; no caffeine) brief, not a universal score. Thinner isotonic gel with 22g carbs (~87 kcal) per 60ml sachet — designed for runners who want an easy-take gel that typically needs little or no extra fluid at the moment of.…

Read all performance details

Should you buy it?

Buy if

  • You're looking for thinner isotonic texture is approachable for gel beginners.
  • You want enough of what GO Isotonic Gel is built for without stretching it into another job.
  • You prefer over a generalist when energy gel (22 g carbs/serving; no caffeine) is the weekly filter.
  • Thinner isotonic texture is approachable for gel beginners

Skip if

  • You need to avoid 22g carbs means more packets to hit high hourly carb targets.
  • You prefer a different tool when this role is not your week.
  • You prefer GU Energy Gel when a energy gel (22 g carbs/serving; no caffeine) is not the weekly.
  • 22g carbs means more packets to hit high hourly carb targets

Final verdict

Science in Sport GO Isotonic Energy Gel is a energy gel (22 g carbs/serving; no caffeine). Thinner isotonic gel with 22g carbs (~87 kcal) per 60ml sachet — designed for runners who want an easy-take gel that typically needs little or no extra fluid at the moment of use. I'd shortlist it for thinner isotonic texture is approachable for gel beginners. The trade-off is 22g carbs means more packets to hit high hourly carb targets — GU Energy Gel is the cleaner compare when that is most of your week. It fits buyers who actually need a energy gel (22 g carbs/serving; no caffeine), not a one-product rotation.

Read full review

Alternatives to consider

Compare with

How we assessed it

How we assessed the Science in Sport GO Isotonic Energy Gel: this is Expert Research. We used manufacturer specifications, the published role as a energy gel (22 g carbs/serving; no caffeine), and a comparison set (Energy Gel, Organic Energy Gel, PF 30 Gel, Beta Fuel Gel). We have not personally tested this product. Feel claims and scores are research-informed, not a wear diary.

Review type: Expert Research Review.

Read how we review products →

Specifications

Specifications

TypeGel
Serving Size60ml sachet
Calories87 kcal
Carbohydrate22 g
Sugars0.6 g
Contains CaffeineNo
Protein0 g
Fluid RequiredLow — marketed as isotonic / often without extra water
Texture / FormGel
FlavourMultiple fruit flavours
Pack SizeBox of 30
Dietary LabelsVegan

Where to buy

Showing offers for Netherlands. Prices may change at the retailer.

  • Amazon.nl

    in stockMarketplaceNLLast checked 12 September 2026

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Sources & evidence

Transparency behind this Kitletics Review — not a substitute for the buying decision above.

Read how we review products →
  • Editorial research

    Independent expert reviews & Kitletics editorial analysis

    Used to cross-check ride, fit, category placement and buying trade-offs. Not a Kitletics personal wear-test.

    Verified 12 September 2026

  • Verified specification

    Official product specifications

    Used to verify identity, published measurements, materials and official features.

    Verified 12 September 2026

View full review evidence
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Product data verified 12 September 2026. Prices checked 12 September 2026.

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Science in Sport GO Isotonic Energy Gel: Specs, Who It's For & Alternatives | Kitletics · Kitletics