A single SIS Go Energy Bar in Blueberry flavor, wrapped in a metallic silver, yellow, and blue sleeve, shown against a plain light gray background.
A single SIS GO Energy Bar in red, yellow, and white packaging, shown horizontally against a light gray background.
A single S1S GO Energy Bar in yellow, black, and white packaging, displayed horizontally against a light gray background.
A single SIs GO Energy Bar in chocolate malt flavor, wrapped in a metallic silver, yellow, and black sleeve, shown against a light gray background.
A retail display box of SIS Science in Sport GO Energy Bars, banana fudge flavor. The box contains multiple individual silver and black energy bars visible through a clear window, with the front and back panels of the packaging shown against a light gray background.
A display box of SIS Science in Sport GO Energy Bars in Blueberry flavor, showing several individual silver and black energy bars inside a blue, white, and yellow retail package on a light gray background.
A box of Sis Science by Sport Go Energy Bars, chocolate fudge flavor, containing multiple individual bars visible through a clear window on a light gray background.
A display box of SIS GO Energy Bars with several individual bars arranged in front on a clean light gray studio background.
A single SIS Go Energy Bar in Blueberry flavor, wrapped in a metallic silver, yellow, and blue sleeve, shown against a plain light gray background.
A single SIS GO Energy Bar in red, yellow, and white packaging, shown horizontally against a light gray background.
A single S1S GO Energy Bar in yellow, black, and white packaging, displayed horizontally against a light gray background.
A single SIs GO Energy Bar in chocolate malt flavor, wrapped in a metallic silver, yellow, and black sleeve, shown against a light gray background.
A retail display box of SIS Science in Sport GO Energy Bars, banana fudge flavor. The box contains multiple individual silver and black energy bars visible through a clear window, with the front and back panels of the packaging shown against a light gray background.
A display box of SIS Science in Sport GO Energy Bars in Blueberry flavor, showing several individual silver and black energy bars inside a blue, white, and yellow retail package on a light gray background.
A box of Sis Science by Sport Go Energy Bars, chocolate fudge flavor, containing multiple individual bars visible through a clear window on a light gray background.
A display box of SIS GO Energy Bars with several individual bars arranged in front on a clean light gray studio background.

SiS

SiS GO Energy Mini Bar

£1.40 Sold out

A compact carbohydrate energy bar for training and racing when you prefer solid fuel to a gel.

Quantity Size: Single Serve
Flavour: Blueberry
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SiS GO Energy Mini Bar provides a convenient solid-food carbohydrate option for runners, cyclists and endurance athletes. Its compact format fits easily in pockets and training bags, making it a practical alternative to gels during longer sessions or when preparing for an event.

Each mini bar is listed as containing 26g carbohydrate, alongside approximately 139 calories and 4.5g protein, although values may vary by flavour. Available in Blueberry, Red Berry, Banana Fudge and Chocolate Fudge, it gives athletes a softer snack option to incorporate into a planned fuelling routine.
Product Specifications

Product: SiS GO Energy Mini Bar
Product Type: Compact carbohydrate energy bar
Format: Single mini energy bar
Bar Size: 40g
Serving Size: 1 bar
Pack Options: Single Serve, Pack of 8 and Box of 30
Available Flavours: Banana Fudge, Blueberry, Red Berry, Chocolate Fudge and Mixed
Calories Per Bar: 139 kcal
Carbohydrate Per Bar: 26g
Protein Per Bar: 4.5g
Carbohydrate Source: Single-source maltodextrin carbohydrate
Made With: Real fruit
Primary Use: Carbohydrate energy support before, during or after exercise
Best For: Running, cycling, triathlon, sportives, endurance training, long gym sessions and active snacking
Suggested Use: Use before training, during longer sessions or as part of a carbohydrate-loading strategy
Key Features: Compact 40g bar, 26g carbohydrates, real fruit ingredients, easy-to-carry format and softer alternative to gels
Dietary / Certification Notes: Informed Sport certified
Why We Choose SiS

We choose SiS - Science in Sport because they create trusted sports nutrition products designed to help athletes fuel, hydrate and recover with confidence. From isotonic energy gels and electrolyte tablets to recovery drinks and advanced endurance fuelling, SiS supports runners, cyclists, triathletes and active individuals before, during and after training and racing.

Science-Led – Developed with a clear focus on sports science, performance nutrition and real-world athlete needs.

Easy to Use – Practical fuelling solutions such as isotonic energy gels that are simple to take during exercise, with no unnecessary complexity.

Endurance Focused – Designed to support sustained energy, hydration and recovery across running, cycling, triathlon and high-intensity training.

Trusted by Athletes – Used by everyday athletes and elite performers who need reliable nutrition when performance matters.

That’s why SiS is part of the North Sports collection — giving you proven sports nutrition to fuel harder sessions, support recovery and perform at your best.
Quantity Size: Single Serve
Flavour: Blueberry

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