10 Best Oat Bars in The UK

Last updated on 12/08/2025

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Best Choice

9.9

Exceptional

Pip & Nut

Pip & Nut Peanut Butter Stuffed Oat Bar Chocolate, 15 x 48g

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Why We Love It

Sleek and modern design.
Ideal for various uses.
Consistent and trustworthy performance.

Main Highlights

SATISFYING ON-THE-GO GOODNESS - our Stuffed Original Oat Bars are made with wholegrain British oats, a sprinkle of currants, crunchy pumpkin seeds, and are generously filled with our real peanut butter
FROM JAR TO BAR - our bars are stuffed with our real, award winning, hi-oleic peanut butter
NO PALM OIL - like all our products, our bars are made with quality, natural ingredients to keep you bright-eyed and bushy tailed
HIGH IN FIBRE - Our plant based bars are full of delicious natural nuttiness
6G OF PROTEIN - each bar contains 30% peanuts

Deliciously Ella - Peanut Butter Oat Bar, Gluten-Free, Vegan Friendly, Healthy Snack, 50g (16 bars)…

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Why We Love It

Delicious plant-based snack option.
Source of natural fiber.
Perfect for gluten-free diets.

Main Highlights

PLANT-BASED - Our classic oat bar with chunks of roasted peanuts and creamy peanut butter
FIBRE - A natural source of fibre
GLUTEN FREE - Naturally gluten-free
ON-THE-GO - A delicious breakfast or snack on the move
100% PLANTBASED - The perfect plant based snack

Nature Valley Crunchy Granola Bars Oats 'n' Honey, Pack Of 40 Bars

11% OffFree Shipping

Why We Love It

Tasty, convenient on-the-go snack.
Natural ingredients, preservative-free delight.
Suitable for vegetarians, lactose-free.

Main Highlights

Crunchy bars for breakfast, morning snack or on-the-go snack
Nature Valley Crunchy flavour Cereal Bars
Better tasting bars with no artificial flavours, colours or preservatives
Packed with natural wholegrain oats and real ingredients
Suitable for vegetarians; 100 Percent wholegrain oats; Lactose free**

Trek High Protein Flapjack Cocoa Oat, 50 g - Gluten Free Bars – Healthy Snack Bars – Plant Based Protein - Vegan Bars (Pack of 16 Bars) | L0572375-P107199021-M107199013

8% OffFree Shipping

Why We Love It

Supports an active lifestyle.
Ideal for vegans.
Naturally protein-rich snack.

Main Highlights

PROTEIN flapjacks delivering long lasting energy to keep you going
PLANT-BASED - each bar contains 9g of plant-based protein, is a source of fibre and vegan friendly
SOURCE OF FIBRE - Perfect nourishing and filling healthy snack with oats
IDEAL SNACK for active people, sport and fitness fans who are kind to their body
DELICIOUS - covered with a top layer of chocolate flavour topping, transforming the humble oatiness into a deep and satisfying taste

Stoats Blueberry & Honey Porridge Oat Bars – Baked with Scottish Oats, Individually Wrapped, Great for Breakfast or On-the-Go Snacks – Pack of 24 x 42g

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Why We Love It

Deliciously crafted with care.
Eco-friendly biodegradable packaging.
Natural energy for all-day fuel.

Main Highlights

Great for Breakfast or On-the-Go – A satisfying option for busy mornings, a quick snack, or an afternoon pick-me-up
Made with Scottish Oats & Real Ingredients – Baked with wholegrain oats, real blueberries, and honey for a naturally delicious taste
Source of Fibre – Contains wholegrain oats, providing a natural source of fibre to help keep you going throughout the day
Individually Wrapped for Convenience – Each 42g bar is wrapped separately, making it easy to take with you wherever you go
Thoughtful Packaging – Designed with sustainability in mind, using materials suitable for home composting

Warrior Raw Protein Bars – 12 x 75g Oat Bar Flapjacks – High Fibre, Low Sugar – Ideal Meal Replacement or Healthy Nutrition Energy Snacks – HFSS/GMP Certified – UK Made (Variety Box)

6% OffFree Shipping

Why We Love It

Packed with 20g protein.
Low sugar, high fibre.
Incredible taste satisfaction.

Main Highlights

HUGE 20 GRAMS OF PROTEIN PER BAR - That's more than 3 whole eggs Our bars are packed with high-quality milk protein to help muscles rebuild and recover after training and to help you meet your daily protein intake.
LOW IN SUGAR, HIGH IN FIBRE - With only 3.5g sugar per bar, these are some of the lowest sugar protein chewy granola bars ever released Also high in fibre to help control blood sugar levels.
USE PRE OR POST WORKOUT - Eat pre-workout for an energy boost or post-workout to help aid recovery. Ideal for cutting or bulking when counting your macros.
GREAT TASTE - Chewy granola oat bar that can be eaten as a filling snack to help keep you satisfied until your next meal and curb cravings for high-sugar snacks.
PACK OF 12 x PROTEIN BARS - Save money with this multipack of 12 high-protein bars. Store at home to eat as and when needed. Can be used as part of a healthy diet to help manage weight gain.

Bio&Me: Super Berry Gut-Loving Oat Bars (18 x 38g) - On-The-Go Snack - Good Gut Health

20% OffFree Shipping

Why We Love It

Delicious and healthy snack option.
Packed with plant-based ingredients.
Perfect for on-the-go enjoyment.

Main Highlights

18 BAR PACK OF UTTERLY DELICIOUS HEALTHY OAT BARS High in Fibre with No added sugar this Vegan Friendly oat bar is full of plant-based foods with no palm oil or andything articial. [NON-ORGANIC]

Deliciously Ella Apple and Raisin Oat Bar (16 bars) - Natural Ingredients - Breakfast Bar - Vegan - Healthy Snack - Gluten Free - (50g x 16 snack bars)

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Why We Love It

Healthy, natural ingredients used.
Energizes your mornings perfectly.
Delicious and dietary friendly.

Main Highlights

Healthy & Natural Snack Bar - We only ever use natural ingredients in all of our Deliciously Ella products, no preservatives, additives or emulsifiers. This is a healthy take on your classic flapjack
Energising Breakfast Bar - Our oat bars are packed full of raw, clean ingredients which will leave you feeling full of energy to kick off your day
100% Gluten Free, Nut Free & Vegan Friendly - Our oat bars are dietary friendly whilst also being absolutely delicious
Pack of 16 - Includes 16 x 50g bars, ensuring you have a plentiful supply of delicious and nutritious muesli bars for when you're on-the-go.
Perfect Lunch Box Snack - Safe for kids lunch boxes or car snacks, it is the perfect on the go fruit bar to keep your children happy and healthy

Nature Valley Crunchy Oats and Chocolate Cereal Bars 18 x 42g

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Why We Love It

Suitable for vegetarians and lactose-free.
Packed with wholegrain oats.
Artificial additives free.

Main Highlights

Crunchy bars for breakfast, morning snack or on-the-go snack
Nature Valley Crunchy flavour Cereal Bars
Better tasting bars with no artificial flavours, colours or preservatives
Packed with natural wholegrain oats and real ingredients
Suitable for vegetarians; 100 Percent wholegrain oats; Lactose free**

Nature Valley Crunchy Oats & Honey 18 x 42g (756g)

36% OffFree Shipping

Why We Love It

100% wholegrain oats goodness.
Natural ingredients, no preservatives.
Perfect on-the-go snack.

Main Highlights

Crunchy bars for breakfast, morning snack or on-the-go snack
Nature Valley Crunchy flavour Cereal Bars
Better tasting bars with no artificial flavours, colours or preservatives
Packed with natural wholegrain oats and real ingredients
Suitable for vegetarians; 100 Percent wholegrain oats; Lactose free**

8.9

Excellent

Save 36%

We scanned 703 products

We reviewed these offers relevant to the Oat Bars within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Pip & Nut, Deliciously Ella, Nature Valley, JB's TREK, Stoats, Warrior, Bio&Me, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Oat Bars in the market, we considered we took a deep dive into 3516 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Pip & Nut Peanut Butter Stuffed Oat Bar Chocolate, 15 x 48g. We love many things about this product by Pip & Nut. What sets it apart from the competition is Sleek and modern design, Ideal for various uses, Consistent and trustworthy performance.
The best value product for most shoppers and where user satisfaction is continuously the highest is Deliciously Ella - Peanut Butter Oat Bar, Gluten-Free, Vegan Friendly, Healthy Snack, 50g (16 bars)… by Deliciously Ella based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Oat Bars and the best cost-to-value ratio is Nature Valley Crunchy Oats & Honey 18 x 42g (756g)at Nature Valley with a 36% discount.
Our list of the best Oat Bars is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Oat Bars in The UK

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We scanned 703 products

We concluded that: