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Sugar Free Energy Drinks Comparison - April 2026

7 Best Sugar Free Energy Drinks In the UK

1
Best Choice
9.7Exceptional
2
9.5Excellent
3
9.3Excellent
4
9.0Excellent
5
Best Value
8.8Very Good
6
8.6Very Good
7
8.4Good
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Model

Boost Energy Drink Sugar Free Original - 24 Pack Drinks with Caffeine, Taurine and Vitamin B | Carbonated Energy Drinks | Gluten Free Vegan Low Calorie Zero Sugar Fizzy Drinks | 24x250ml
Model
C4 Performance Energy Drinks Cosmic Rainbow 500ml (12 pack) | Sugar Free Energy Drink with 160mg Caffeine, 250mg Betaine, 1050mg Taurine | Low Calorie Fizzy Drinks for On the Go Energy and Focus
Model
Monster Ultra Energy Drink Zero Sugar, 9 x 500 ml
Model
Boost Energy Drink Sugar Free Original - 24 Pack Drinks with Caffeine, Taurine and Vitamin B | Carbonated Energy Drinks | Gluten Free Vegan Low Calorie Zero Sugar Fizzy Drinks | 24x250ml
Model
C4 Performance Energy Drinks Cosmic Rainbow 500ml (12 pack) | Sugar Free Energy Drink with 160mg Caffeine, 250mg Betaine, 1050mg Taurine | Low Calorie Fizzy Drinks for On the Go Energy and Focus
Model
Monster Ultra Energy Drink Zero Sugar, 9 x 500 ml
Model
Dragon Energy Tropical Energy Drink 12 x 500ml Cans

Brand

Boost
Brand
Cellucor
Brand
Monster
Brand
Boost
Brand
Cellucor
Brand
Monster
Brand
Dragon Energy

Reviews

398 reviews
Reviews
404 reviews
Reviews
14,204 reviews
Reviews
398 reviews
Reviews
404 reviews
Reviews
14,204 reviews
Reviews
6,068 reviews

Features

Worth the money

9.1
Worth the money
9.4
Worth the money
9.3
Worth the money
9.1
Worth the money
9.4
Worth the money
8.9
Worth the money
8.6

Tech Specs

package information

‎Tin
package information
Shrink Wrapped Tray
package information
‎Tin
package information
‎Tin
package information
Shrink Wrapped Tray
package information
‎Tin
package information
Tin

storage instructions

‎Store in a cool dark place.
storage instructions
Store in a cool, dry place.
storage instructions
‎Store in a cool dry place
storage instructions
‎Store in a cool dark place.
storage instructions
Store in a cool, dry place.
storage instructions
‎Store in a cool dry place
storage instructions
Store in a cool and dry place

manufacturer contact

‎Boost Drinks LTD, 1270 Century Way, Thorpe Park, Leeds LS15 8ZB, England.
manufacturer contact
CELLUCOR
manufacturer contact
‎Coca-Cola European Partners Great Britain Ltd, Uxbridge, UB8 1EZ
manufacturer contact
‎Boost Drinks LTD, 1270 Century Way, Thorpe Park, Leeds LS15 8ZB, England.
manufacturer contact
CELLUCOR
manufacturer contact
‎Coca-Cola European Partners Great Britain Ltd, Uxbridge, UB8 1EZ
manufacturer contact
Kingsley Beverages, 2 Waterworth Rd, Alwalton Hill, Peterborough, PE7 3AG

age range description

‎Adult
age range description
Adult
age range description
‎Adult
age range description
‎Adult
age range description
Adult
age range description
‎Adult
age range description
Adult

format

‎Liquid
format
Liquid
format
‎Liquid
format
‎Liquid
format
Liquid
format
‎Liquid
format
Liquid

serving recommendation

‎250 ml
serving recommendation
Add one serving to 330 ml of water and shake well.
serving recommendation
‎500 ml
serving recommendation
‎250 ml
serving recommendation
Add one serving to 330 ml of water and shake well.
serving recommendation
‎500 ml
serving recommendation
500ml serve chilled

caffeine content

‎caffeinated
caffeine content
160 milligrams
caffeine content
‎0.15 milligrams
caffeine content
‎caffeinated
caffeine content
160 milligrams
caffeine content
‎0.15 milligrams
caffeine content
-

carbohydrate

‎<0.5000 g
carbohydrate
-
carbohydrate
‎0.9000 g
carbohydrate
‎<0.5000 g
carbohydrate
-
carbohydrate
‎0.9000 g
carbohydrate
1 g

serving size

‎100 ml, 100 ml
serving size
-
serving size
‎100 ml, 250 ml
serving size
‎100 ml, 100 ml
serving size
-
serving size
‎100 ml, 250 ml
serving size
6 litres

energy kj

‎16.00 kJ
energy kj
-
energy kj
‎10.00 kJ
energy kj
‎16.00 kJ
energy kj
-
energy kj
‎10.00 kJ
energy kj
2.00 kJ

energy kcal

‎3.82 kcal
energy kcal
-
energy kcal
‎2.39 kcal
energy kcal
‎3.82 kcal
energy kcal
-
energy kcal
‎2.39 kcal
energy kcal
0.48 kcal

package dimensions

‎33.5 x 21.5 x 13.6 cm; 6.47 kg
package dimensions
-
package dimensions
‎20.7 x 20.3 x 17.1 cm; 0.52 g
package dimensions
‎33.5 x 21.5 x 13.6 cm; 6.47 kg
package dimensions
-
package dimensions
‎20.7 x 20.3 x 17.1 cm; 0.52 g
package dimensions
-

salt

‎0.1200 g
salt
-
salt
‎0.2000 g
salt
‎0.1200 g
salt
-
salt
‎0.2000 g
salt
-

additives

‎Taurine, Inositol, Niacin, Pantothenic Acid, Vitamin B6, Vitamin B12
additives
-
additives
‎taurine, panax ginseng root extract, L-carnitine L-tartrate, vitamins (B3, B5, B6, B12), erythritol, E133
additives
‎Taurine, Inositol, Niacin, Pantothenic Acid, Vitamin B6, Vitamin B12
additives
-
additives
‎taurine, panax ginseng root extract, L-carnitine L-tartrate, vitamins (B3, B5, B6, B12), erythritol, E133
additives
-

speciality

‎Dairy Free, Gluten Free
speciality
-
speciality
-
speciality
‎Dairy Free, Gluten Free
speciality
-
speciality
-
speciality
Nut Free, Gluten Free, Dairy Free

protein

‎0 g
protein
-
protein
-
protein
‎0 g
protein
-
protein
-
protein
0 g

fat

‎0 g
fat
-
fat
-
fat
‎0 g
fat
-
fat
-
fat
0 g

Available On

Available On
Available On
Available On
Available On
Available On
Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.7
    1
    Boost Energy Drink Sugar Free Original - 24 Pack Drinks with Caffeine, Taurine and Vitamin B | Carbonated Energy Drinks | Gluten Free Vegan Low Calorie Zero Sugar Fizzy Drinks | 24x250ml
    Boost
    18% Off

    Boost Energy Drink Sugar Free Original - 24 Pack Drinks with Caffeine, Taurine and Vitamin B | Carbonated Energy Drinks | Gluten Free Vegan Low Calorie Zero Sugar Fizzy Drinks | 24x250ml

    9.1 worth the money

    Why we love it

    Sugar-free with great taste and energy boost.
    Includes caffeine, vitamins B6 and B12.
    Convenient bulk pack saves money and trips.
  • 9.5
    2
    Cellucor
    35% Off

    C4 Performance Energy Drinks Cosmic Rainbow 500ml (12 pack) | Sugar Free Energy Drink with 160mg Caffeine, 250mg Betaine, 1050mg Taurine | Low Calorie Fizzy Drinks for On the Go Energy and Focus

    9.4 worth the money
    Main highlights
    • ZERO SUGAR SOFT DRINKS: Low in calories with zero sugars and carbohydrates, you can enjoy a can of C4 Performance for a guilt free energising lift to power you through your day.
    • POWERFUL ENERGY BOOST: C4 Performance Energy is powered by BetaPower and other key ingredients that support explosive energy, alertness, and performance. With 160mg caffeine, plus niacin (vitamin B3) and vitamin B12 to help reduce tiredness and fatigue and support normal energy metabolism.
    • GREAT TASTING SOFT DRINKS: The refreshing Cosmic Rainbow flavour is a delicious way to get a game changing energy boost - C4 Performance is also available in Frozen Bombsicle, Pineapple Head, Orange Slice, and Twisted Limeade.
    • EXPLOSIVE ENERGY DRINK: Grab energy on the go with C4 Performance Energy. This performance energy drink is the ideal beverage to conquer your goals both in the gym and in everyday life - comes as a 12 x 500ml can multipack.
  • 9.3
    3
    Monster
    19% Off

    Monster Ultra Energy Drink Zero Sugar, 9 x 500 ml

    9.3 worth the money
    Main highlights
    • Carbonated Energy Drink with Taurine, Ginseng, Caffeine, L-Carnitine and B Vitamins with Sweeteners.
    • A lighter tasting, less sweet, citrus flavor sparkling refreshment that is great for any occasion.

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Features

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Consumer Reviews

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Value for money

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When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.