GO Isotonic Energy Gel - 15 Pack

GO Isotonic Energy Gel - 15 Pack

Perfect for:
Dairy Free
Gluten Free
Nut Free
Wheat Free
From £22.50

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Key Benefits
Energy during exercise
22g carbohydrates
Informed Sport accredited
Key Benefits
Energy during exercise
22g carbohydrates
Informed Sport accredited
Product Overview

Why Choose?

  • The world's first isotonic energy gel
  • 87 calories per serving
  • Delivers an easily digestible and quick supply of carbohydrate


About GO Isotonic Energy Gel

The GO Isotonic Energy Gel was the world's first isotonic gel effectively delivering an easily digestible and quick supply of carbohydrate for energy during exercise.

They are designed to be consumed without water, minimising the risk of being bloated that can sometimes occur with over-drinking.

Provides you with 22 grams of carbohydrate per gel.


Winner of the Queens award for enterprise, this innovative product continues to be seen at the forefront by endurance athletes. Use during endurance sessions and events to help avoid flagging.

Suggested Use

Depleting your carbohydrate stores during exercise is one of the major causes of fatigue. Delivering additional carbohydrate during exercise is known to improve performance, race times and delay the onset of fatigue.

The Isotonic formula allows the gel to empty from the stomach quickly as no fluid needs to be drawn into your stomach to dilute the gel, providing fast energy. SiS GO Isotonic Energy Gels are highly practical and can easily be carried without the requirement for bulky bottles.

Informed Sport Registered

Our complete product range is developed using a world-class approach to banned substance testing, providing assurance for athletes. For more information on Informed Sport & our unique world class approach, click here.

Suitable For: Vegans, Vegetarians, Lactose free, Gluten Free, Wheat Free, Nut Free, Soya Free

Directions For Use
  • Consume 1-3 gels per hour to deliver approx 60 grams of carbohydrate and maximize carbohydrate utilization rates
  • No need for additional water which helps minimise the risk of feeling bloated
  • Perfect for when you need a fast, convenient energy boost

  • Simply tear off the top of the packaging and consume - there is no need to mix with water
Nutritional Information
Nutrition Stats
For nutritional information about the individual flavours please view single product pages. Example below is for Apple flavour.
Typical ValuesPer 100mlPer Serving 60ml
Energy 613kj/144kcal 368kj/87kcal
Protein 0.0g 0.0g
Carbohydrate 36g 22g
of which sugars 1.0g 0.6g
Fat 0.1g 0.0g
of which saturates 0.0g 0.0g
Fibre 0.1g 0.0g
Salt 0.01g0.01g


Water, Maltodextrin (from Maize) (33%), Gelling Agents (Gellan Gum, Xanthan Gum), Natural Flavouring, Acidity Regulators (Citric Acid, Sodium Citrate), Preservatives (Sodium Benzoate, Potassium Sorbate), Sweetener (Acesulfame K), Sodium Chloride, Antioxidant (Ascorbic Acid)


When should I consume these?

Consume 1-3 gels per hour during endurance exercise to maximise carbohydrate utilisation rates. Alternatively, take one halfway through repeated high intensity exercise (such as football or rugby) to rapidly replenish glycogen stores.


When should I have these versus Electrolyte, Caffeine or L-Carnitine gels?

These should be consumed when you need a fast, convenient energy boost. During endurance exercise lasting over 90 minutes, these should be the main gels that are used throughout a race. Use in combination with other SiS Energy products e.g 1 x SiS GO Isotonic Energy Gel and 1 x 500ml SiS GO Electrolyte to hit 58 grams of carbohydrate (per hour).


Is this gel Isotonic?

Yes, this gel was the first truly isotonic energy gel.


Are these 'natural'?

SiS GO Isotonic gels contain natural flavourings.


Why are these better than regular foods, for example a banana?

SiS GO Isotonic Energy Gels are designed to be absorbed fast into your gut, providing fast energy. Some solid foods can take a while to digest as there's more fat and fibre in whole foods, which during exercise can cause feelings of bloating and discomfort.


Do these contain aspartame?

No, SiS Gels do not contain aspartame.


Will they fit in my cycle jersey pocket?

Yes! All SiS GO Gels are lightweight, compact and designed to fit in jersey pockets, cycle bags and waist packs. They are pressure tested, so don't worry about the packaging tearing or bursting during exercise.


Reviews (33 Reviews)
Showing 33 of 33 reviews

Molto buono

Enrico Marcato


buonissimi ed efficaci

vincenzo spataro


Not quite an accurate taste



Great product fast delivery

craig greenough


Excellent product



A well respected product in a great flavour.



Easy to digest on the go! Good flavour & texture.

Benjamin Hall


Prompt efficient dispatch - thank you!

N Winter


Great product!

Lorenzo Di Gennaro


My favoured flavour as it has a citrus edge to it so helps cuts through the sweetness. Well tolerated.

Darrel Vincent


easy to drink. consistency and taste are excellent combination for me even after 16 hrs run.

Hannu Lempinen


Just what you need to keep you going



Great taste when cycling. Easy on the stomach



Tasty and effective energy gel for long runs and rides

James Moore


Gusto fresco e buono. Molto comodi e pratici per L attività fisica e soprattutto danno la giusta carica . Inoltre non hanno caffeina

dalia bonavita


Buon prodotto

Flavio Luciani


Gels etc great. Freebie bottle pretty poor quality

Mike Foster


I need more of them,

Frank Mcgowan


Favourite flavour

Paul Rendall


Can't go wrong with these gels. Best on the market.



Best flavour gels in the world. Fact. Stop the bonk!!



Great flavour and works really quickly



Great products at a fair price.



molto utile e pratico

Lucio Plebs


Prodotto perfetto, gusto buono, confezione di facile apertura mentre si pedala, rapida assimilazione



First feeling is surprising because little sweet comparatively to other brands. But ultimately good. Even more benefits for long effort when you take several products often sweetened that finish to disgust. No need to drink for a better digestion.

Gregory L, Yvelines


Good too product for energy gels, nice taste which is easy to take in on the ride and again hits the spot generally after about 20 minutes, seem to get the additional boost required. On a 100 miler would generally expect to get through 4/5 depending on the heat and terrain.

Russell Dorsett


they say and apple a day!!

campbell noon