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

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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.

Product Specifications

Product: SiS Energy Oat Bar
Product Type: Carbohydrate and protein oat energy bar
Format: Single oat bar
Bar Size: 70g
Serving Size: 1 bar
Pack Options: Single Serve or Box of 12
Available Flavours: Blueberry; White Chocolate & Macadamia
Calories Per Bar: 255 kcal for Blueberry; may vary slightly by flavour
Carbohydrate Per Bar: 40g
Sugars Per Bar: 15g for Blueberry
Protein Per Bar: 10g
Fat Per Bar: 5.1g for Blueberry
Saturates Per Bar: 1.8g for Blueberry
Fibre Per Bar: 4.3g for Blueberry
Salt Per Bar: 560mg for Blueberry
Main Ingredient: Wholesome oats
Primary Use: Energy top-up and protein support before training, after exercise or between meals
Best For: Running, cycling, gym training, endurance sport, active lifestyles, travel and daily snacking
Suggested Use: Eat one bar between meals or around training to increase carbohydrate and protein intake
Key Features: 40g carbs, 10g protein, natural fibre, oat-based energy, filling snack format and convenient on-the-go fuelling
Dietary / Certification Notes: XMiles lists the product as vegan, gluten free and 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.