Best Science in Sport Carbohydrate Supplements of 2026

Phoebe Cooper Avatar
Phoebe Cooper
Last Updated: 6 Feb 2026

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Carbohydrate supplements by Science in Sport are a range of products designed to provide athletes and fitness enthusiasts with an easy and convenient way to fuel their bodies before, during, and after exercise. These supplements come in various forms such as powders, gels, and bars, and are formulated to provide a quick and sustained release of energy. With a variety of flavours to choose from, Science in Sport's carbohydrate supplements are a popular choice for those looking to enhance their athletic performance.

At a Glance: Our Top Picks

Science In Sport GO Isotonic Energy Gels Variety Pack Cover #TOP 1
Science In Sport GO Isotonic Energy Gels Variety Pack
ftb score rating icon 9.8
Science In Sport GO Isotonic Energy Gels Pack Cover #TOP 2
Science In Sport GO Isotonic Energy Gels Pack
ftb score rating icon 9.7
Science In Sport GO Isotonic Energy Gels, Blackcurrant Flavour Cover #TOP 3
Science In Sport GO Isotonic Energy Gels, Blackcurrant Flavour
ftb score rating icon 9.5

Top 10 Science in Sport Carbohydrate Supplements

#TOP 1

Science In Sport GO Isotonic Energy Gels Variety Pack

000272
Multi
7 Gels
Science In Sport GO Isotonic Energy Gels Variety Pack Cover
Science In Sport GO Isotonic Energy Gels, Running Gels with 22g Carbohydrates, Low Sugar, Variety Pack of Assorted Flavours, 60ml Per Serving (7 Pack)

Science In Sport Energy Gels provide a convenient source of energy for your runs. Each 60ml gel contains 22g of easily digestible carbohydrates, ensuring you receive a quick energy boost when you need it most. With less than 1g of sugar per sachet, you can refuel without feeling bloated. The gels are vegan-friendly and gluten-free, making them suitable for various dietary needs. Plus, with added sodium and maltodextrin, these gels help maintain your electrolyte balance during intense exercise.

What We Like
High carbohydrate content
Low sugar formula
Vegan and gluten-free
Assorted flavours
Quick energy supply
#TOP 2

Science In Sport GO Isotonic Energy Gels Pack

100076
Various Flavours
20 Gels
Science In Sport GO Isotonic Energy Gels Pack Cover
Science In Sport GO Isotonic Energy Gels, Running Gels with 22g Carbohydrates, Low Sugar, Variety Pack of Assorted Flavours, 60ml Per Serving (20 Pack)

The Science In Sport Gels are a convenient way to fuel your runs. Each 60ml sachet provides 22g of easily digestible carbohydrates, giving you a quick energy boost during exercise. With less than 1g of sugar per gel, you can replenish your energy without feeling bloated. These vegan-approved gels also contain natural flavours and added sodium, making them a smart choice for maintaining hydration and energy levels. Enjoy a variety pack of flavours to keep your energy routine exciting.

What We Like
High carbohydrate content
Low sugar formulation
Vegan and gluten-free
Variety of flavours
Easy to digest
#TOP 3

Science In Sport GO Isotonic Energy Gels, Blackcurrant Flavour

002955-Export
Blackcurrant
60 ml (Pack of 6)
Science In Sport GO Isotonic Energy Gels, Blackcurrant Flavour Cover
Science in Sport GO Isotonic Energy Gel 6 x 60ml Blackcurrant – Fast-Acting – Vegan – Formulation with 22g of carbohydrates, a great source of energy

The Science In Sport Gels are designed to provide a quick energy boost during your runs. Each 60ml gel contains 22g of carbohydrates, ensuring you receive an easily digestible source of energy when you need it most. With less than 1g of sugar per sachet, you can replace your energy efficiently without feeling bloated. Plus, being vegan-approved and gluten-free, these gels cater to a wide range of dietary needs, making them a convenient choice for all runners.

What We Like
High carbohydrate content
Low sugar formula
Vegan and gluten-free
Quick energy boost
Convenient packaging

Science In Sport GO Isotonic Energy Gels, 30 Pack

211001A
Orange
60 ml (Pack of 30)
Science In Sport GO Isotonic Energy Gels, 30 Pack Cover
Science In Sport GO Isotonic Energy Gels, Running Gels with 22 g Carbohydrates, Low Sugar, Orange Flavour, 60 ml Per Serving (30 Pack)

Science In Sport GO Isotonic Energy Gels are designed to provide you with quick and effective energy replenishment during your runs. Each 60ml sachet contains 22g of carbohydrates, ensuring you have digestible energy exactly when you need it. These gels are scientifically formulated to help sustain your energy levels and delay fatigue, making them ideal for marathons or training sessions. Additionally, they are vegan-friendly and gluten-free, using natural orange flavour, allowing you to enjoy a guilt-free energy boost while you exercise.

What We Like
High carbohydrate content
Vegan and gluten-free
Effective energy replenishment
Trusted by elite athletes
#TOP 5

Science in Sport GO Energy + Electrolyte Gel Raspberry Vegan

100017
Raspberry
60 ml (Pack of 6)
Science in Sport GO Energy + Electrolyte Gel Raspberry Vegan Cover
Science in Sport GO Energy + Electrolyte Gel 6 x 60ml Raspberry, Vegan – Ideal for energy supply and balancing electrolyte levels

The SiS GO Energy Gel is designed to keep you energised and hydrated during exercise. It replenishes key electrolytes such as magnesium and calcium lost through sweat, helping you maintain a balanced electrolyte level. The gel is packed with carbohydrates, providing a quick and effective energy boost to support your performance throughout training or competition. Enriched with sodium, it also aids hydration by maintaining your body's fluid balance. Plus, it’s vegan and gluten-free, making it suitable for a variety of dietary needs.

What We Like
Replenishes essential electrolytes
High carbohydrate energy source
Supports hydration with sodium
100% vegan and gluten-free
#TOP 6

Science in Sport Go Isotonic Energy Gel with Caffeine

22564
6 Packs
60 ml (Pack of 6)
Science in Sport Go Isotonic Energy Gel with Caffeine Cover
Science in Sport Go Isotonic Energy Gel with Caffeine, Berry Flavour, 60ml (6 Packs)

The SiS Go Energy Gel offers superior sports nutrition to help you train harder, race faster, and recover more quickly. With its award-winning gel technology, it delivers fast energy along with a caffeine boost, making it easy for you to stay energised during your workout. This flavoured carbohydrate gel contains beneficial ingredients like anthocyanins and added sweetener, enhancing both taste and performance. You can consume up to three sachets every hour while exercising without needing water, providing you with ultimate convenience.

What We Like
Fast energy delivery
Caffeine boost for endurance
Convenient, no water needed
Flavoured and easy to consume
#TOP 7

Science in Sport Beta Fuel 80 Energy Drink

131263
Orange
82 g (Pack of 15)
Science in Sport Beta Fuel 80 Energy Drink Cover
Science in Sport Beta Fuel 80 Dual Source Energy Drink Powder, Orange Flavour Carb Powder, 80g of Carbs Per Pack (15 Pack)

Science in Sport's Beta Fuel Energy Drink offers a convenient solution for those needing a quick boost during exercise. With an optimised maltodextrin to fructose ratio, it enhances your power output while increasing the efficiency of carbohydrate usage, helping you sustain your performance. The isotonic formula minimises the risk of gastrointestinal discomfort, allowing you to focus on your workout. Simply mix this powder with water for a refreshing orange-flavoured drink that supports your energy needs on the go.

What We Like
Convenient mix-and-go formula
Optimised carbohydrate ratio
Minimises gastrointestinal discomfort
Favoured by elite athletes
Refreshing orange flavour
#TOP 8

Science in Sport Go Isotonic Energy Gel Fruit Salad 60ml

200808
Box of 6
Science in Sport Go Isotonic Energy Gel Fruit Salad 60ml Cover
Science in Sport Go Isotonic Energy Gel, Fruit Salad, 60 ml, 6-Count

The Science in Sport Energy Gel is designed to help you maintain your performance during long endurance exercises. It contains 22g of carbohydrates, which provide a quick boost of energy to keep you going. The gel has natural flavours, making it a pleasant option when you need a tasty energy top-up. Additionally, it is easy to digest, so you can avoid any discomfort while focusing on your activity. This gel is perfect for those who want a convenient and effective energy source during extended workouts or races.

What We Like
High carbohydrate content
Supports endurance performance
Natural flavours included
Easy to digest formula
#TOP 9

Science In Sport Variety Isotonic Gels Pack

FS00272
Orange
60 ml (Pack of 4)
Science In Sport Variety Isotonic Gels Pack Cover
Science In Sport 7 Pack Variety Isotonic Gels 60ml x 4 (Pack of 4)

The Science In Sport Gels provide 22 grams of carbohydrate per gel, making them an excellent source of quick energy. Their isotonic formulation ensures that you can refuel efficiently during exercise, helping you maintain your performance. The convenient gel format allows for easy consumption on the go, so you can focus on your workout without interruptions. With seven mixed flavours, including Apple and Tropical, you'll enjoy a tasty boost whenever you need it.

What We Like
Fast energy delivery
Convenient gel format
Variety of flavours
Ideal for exercise
#TOP 10

Science In Sport GO Isotonic Cherry Energy Gels

130660
Cherry
15 Gels
Science In Sport GO Isotonic Cherry Energy Gels Cover
Science In Sport GO Isotonic Energy Gels, Running Gels with 22g Carbohydrates, Low Sugar, Cherry Flavour, 60ml Per Serving (15 Pack)

The Science In Sport GO Gels offer a convenient energy boost with their cherry flavour, making them enjoyable to consume during exercise. Each 60ml gel provides 22g of carbohydrates, giving you a quick and easily digestible source of energy to help maintain your performance. With less than 1g of sugar per sachet, these gels reduce the risk of bloating, so you can stay comfortable throughout your workout. They are also vegan-approved and gluten-free, containing natural flavours and added nutrients like sodium, making them suitable for a wide range of dietary needs.

What We Like
High carbohydrate content
Low sugar, less bloating
Vegan and gluten-free
Natural cherry flavour
Buying Guide Image
Editor's Notes

During our Science in Sport carbohydrate supplement research, we found 17 Science in Sport carbohydrate supplement products and shortlisted 10 quality products. We collected and analyzed 67,571 customer reviews through our big data system to write the Science in Sport carbohydrate supplements list. We found that most customers choose Science in Sport carbohydrate supplements with an average price of £13.17.

The Science in Sport carbohydrate supplements are available for purchase. The top 10 picks range in price from a low of £6.00 to a high of £39.00, find the one that fits your budget.

Written by
Phoebe Cooper Avatar

In 2000, Phoebe Cooper graduated from the University of London as a Pharmacist. She practiced as a Pharmacist for the better part of 2 decades. Phoebe says she has worked in the majority of health sectors and has sufficient accumulated knowledge and experience. In her practice, Phoebe published a series of eBooks, one of which is titled "Good Health Good Living."