A single wrapped SIS Energy Oat Bar in Blueberry flavor, shown on a clean light gray background. The package is blue and black with white text and a small food photo on the right.

A hand holding a partially unwrapped SIS Energy Oat Bar in Blueberry flavor, with a blurred outdoor background of green foliage and sunlight.

A display box and individual wrapped bars of SIS Energy Oat Bar in Blueberry Flavor, shown on a clean light gray studio background.

Box of SIS Energy Oat Bars on a white background

SiS

SiS Energy Oat Bar

£2.50

A satisfying 70g oat bar with carbohydrate and protein for fuelling around training and active days.

Quantity Size: Single Serve

Single Serve Box of 12

Flavour: Blueberry

Blueberry White Chocolate & Macadamia

Product variants

Quantity

In stock. Delivery 3-5 Days. Free UK delivery over £50

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Key Benefits

40g Carbohydrate Per Bar — Convenient energy in a food format.
10g Protein Per Bar — Useful addition to daily protein intake.
Oat-Based Texture — An alternative to gels and drinks.
70g Individual Bar — Easy to pack for training or travelling.
Two Flavours — Blueberry and White Chocolate & Macadamia.

SiS Energy Oat Bar is an oat-based snack developed for athletes who prefer a more substantial food option around their training. Each 70g bar is designed to supply carbohydrate and protein in a convenient, ready-to-eat format that can be packed in a kit bag or taken on the go.

The current product listing specifies approximately 40g carbohydrate and 10g protein per bar, making it useful before sessions, after activity or between meals as part of a wider nutrition plan. Choose between Blueberry and White Chocolate & Macadamia in single bars or boxes of twelve.

Nutrition & Ingredients

Blueberry – 70g bar

Per bar: 1,065kJ / 255kcal; carbohydrate 40g (sugars 15g); protein 10g; fat 5.1g (saturates 1.8g); fibre 4.3g; salt 0.56g.

Ingredients: Oats (36%), Oat Syrup, Humectant (Vegetable Glycerol), Brown Sugar, Rice Flour, Dates, Soya Protein Crispies (5%) (Soya Protein Isolate, Tapioca Starch, Salt), Pea Protein, Golden Syrup, Soya Protein, Emulsifier (Acacia Gum), Olive Oil, Coconut Oil, Freeze-Dried Blueberry Pieces (1%), Flavouring, Salt.

Allergen advice: Contains oats (cereals containing gluten) and soya. May contain milk, nuts and peanuts. Vegan formulation.

White Chocolate & Macadamia – 70g bar

Per bar: 1,170kJ / 280kcal; carbohydrate 40g (sugars 15g); protein 10g; fat 8.4g (saturates 2.6g); fibre 2.1g; salt 0.56g.

Ingredients: Oats (36%), Oat Syrup, Humectant (Vegetable Glycerol), Rice Flour, Brown Sugar, White Chocolate Chips (5%) (Sugar, Cocoa Butter, Milk Solids, Emulsifier (Soya Lecithins), Flavouring), Macadamia Nuts (5%), Soya Protein Crispies (5%) (Soya Protein Isolate, Tapioca Starch, Salt), Dates, Pea Protein, Golden Syrup, Olive Oil, Coconut Oil, Soya Protein, Emulsifier (Acacia Gum), Flavouring, Salt.

Allergen advice: Contains oats (cereals containing gluten), milk, soya and macadamia nuts. May contain other nuts and peanuts. Not vegan.

Values and formulations are taken from SiS product information. Always check the supplied packaging for the latest ingredient, allergen and nutrition declaration.

Suggested Use & Compatibility

Suggested Use

Eat a bar before or after exercise, or as a snack when extra carbohydrate is useful. For intense activity, test tolerance to solid food before relying on it mid-session.

Dietary Compatibility

Ingredients, allergens and nutritional values may differ between Blueberry and White Chocolate & Macadamia; refer to the relevant wrapper.

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.