10 Best Low Calorie Protein Breakfast Bars in The UK

Last updated on 24/05/2025

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Huel Complete Nutrition Bar, 12 x 51g Bars, Peanut Caramel, High Protein Bar, Plant-Based Protein Bars, Low Sugar, High Fibre, High-Protein Snack with Vegan Chocolate, Under 200 Calories

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Why We Love It

Rich, indulgent vegan chocolate.
High-protein, guilt-free snack.
Certified V-label, low sugar.

Main Highlights

HIGH-PROTEIN COMPLETE NUTRITION BAR: Huel Complete Nutrition Bar is a satisfying snack combining indulgent vegan chocolate, smooth caramel, and balanced nutrition. Each bar delivers up to 14g of plant-based protein, 26 essential vitamins and minerals, and under 200 calories.
CHOCOLATE-COVERED, ON-THE-GO SNACK: Enjoy a delicious caramel and chocolate bar anytime, anywhere. Perfect for curbing hunger between meals, pre-gym fuel, or a post-workout boost—just grab and go.
PACKED WITH NUTRIENTS & LOW IN SUGAR: With high fibre, plant-based protein, and low sugar, this bar helps support energy, digestion, and muscle function, keeping you full and satisfied.
SCIENCE-BACKED HEALTH BENEFITS: Delivers over 170 research-backed health benefits per bar. Formulated with nutrients that support immunity, reduce tiredness and fatigue, contribute to energy metabolism, help maintain healthy hair, skin, and nails, and more.
100% VEGAN & NON-GMO: Plant-based and free from artificial flavours and colourings. Low in sugar and non-GMO, Huel Complete Nutrition Bar is a clean, nutritious snack designed to fuel your day.

Get Buzzing Flapjacks Packs of 20 (20 Pack, Banana)

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Why We Love It

Nut-Free, gluten-free energy boost.
Packed with essential nutrients.
Trusted by professional athletes.

Main Highlights

Nut and Gluten Free

Barebells Soft Protein Bars | 16g protein Healthy Snacks, Protein Snacks for Breakfast, Sugar Free Chocolate, Low Carb – 12 x 55g (Caramel Choco)

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Why We Love It

Indulgent caramel and chocolate combo.
High protein, low calorie snack.
Promotes happy eating, healthy living.

Main Highlights

CARAMEL CHOCO - Boasting a soft chocolatey core and a layer of caramel, wrapped in a milk chocolate embrace.
HIGH IN PROTEIN - Protein bars from Barebells contain 16g of protein and just a few grams of sugar per serving which makes it the perfect low calorie snack.
PROTEIN SNACKS ON THE GO - Barebells is the ultimate choice for pre- and post-workout, as high protein snack at the office or for anyone who wants to satisfy their chocolate cravings.
WE BELIEVE IN HAPPY EATING AND HEALTHY LIVING - the Barebells protein bar is famous for its soft texture and amazing taste. Never compromising on flavor, Barebells protein bars are here to wow your taste buds.
PALM OIL-FREE AND NO ADDED SUGAR - Enjoy the reassurance that all our bars are crafted without palm oil and made without any added sugars

Warrior Crunch - High Protein Bars - 20g Protein Each Bar - Low Carb, Low Sugar Snack - 12 Pack x 64g (Chocolate Orange)

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Why We Love It

Packed with 20g protein.
Perfect for keto diets.
Delicious triple chocolate layer.

Main Highlights

20 GRAMS OF PROTEIN PER BAR – Each bar delivers a powerhouse of protein, more than three whole eggs Ideal for supporting muscle recovery and growth after intense workouts or sports activities
LOW CARB, KETO-FRIENDLY – With under 3g of net carbs per bar, these are an ideal choice for those following a Keto diet or managing carb intake for weight control
LOW SUGAR, SUSTAINED ENERGY – Each bar contains less than 3g of sugar, helping to stabilise blood sugar levels and provide lasting energy throughout the day
CHEWY CRISPY SNACK BAR – Enjoy the Ideal blend of crispy, crunchy pieces and a triple-layer chocolate coating for a satisfying high-protein snack that tastes indulgent
PACK OF 12 PROTEIN BARS – Includes 12 individually wrapped bars, making it easy to enjoy a protein boost after workouts or as part of your daily nutrition plan

Keto Keto Bars 12 x 50g Keto Snacks Weight Loss | Keto Diet, Sugar Free Snack, Meal Replacement Bar | Healthy Snacks, Low Carb Food | Low Calorie, Vegan Food, Breakfast Bar (Coconut Cashew)

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Why We Love It

Tasty, healthy ketogenic snack.
100% Ketogenically approved vegan bars.
No sugar spike ensured.

Main Highlights

Delicious Vegan Treats - After 3 years of development, Keto Keto have created the ultimate tasty, healthy snack for those on a fat loss, pure keto or atkins diet.
Truly Keto Bar - All of our vegan products have achieved 100% Ketogenic scores, verified by Ketone Meter Testing - Throw the keto cookbook out, we have done the hard work for you. We have multiple flavours which include sugar free chocolate making our bars the ultimate keto snack.
No Sugar Spike - Unlike most protein bars, Keto Keto bars are pure and contain no ingredients which spike blood sugar, making them truly ketogenic and a great diabetic food. They are also both dairy free and vegan friendly.
Two Delicious Flavours - Truly tasty keto food is hard to come by. That's why all of our keto snacks and treats are made with taste as a priority. Simply put, our customers LOVE our bars, and we are certain that you will too.
Sugar Free Energy Bar - Energy Bars typically provide lots of carbohydrates. Whether you are on an atkins diet or a keto diet, our bars priovide you with the good fats you need to maintain your goals. Ditch the keto diet pills and grab our tasty bars!

Triple-layered gooey chocolate bars.
Low sugar, high protein.
Vegan and guilt-free snack.

Main Highlights

𝗧𝗥𝗜𝗣𝗟𝗘-𝗟𝗔𝗬𝗘𝗥𝗘𝗗 𝗪𝗜𝗧𝗛 𝗔 𝗚𝗢𝗢𝗘𝗬 𝗖𝗢𝗥𝗘 – Coated with 3 layers of real chocolate, these vegan protein bars are healthy and incredibly delicious.
𝟭𝟱𝗚 𝗣𝗥𝗢𝗧𝗘𝗜𝗡 & 𝗢𝗡𝗟𝗬 𝟬.𝟯𝗚 𝗦𝗨𝗚𝗔𝗥 – Our Plant Based Protein Bars are low in sugar, high in protein. They are 100% dairy free to keep you fuller for longer, guilt-free.
𝗩𝗘𝗚𝗔𝗡 & 𝗗𝗘𝗟𝗜𝗖𝗜𝗢𝗨𝗦 – Made with less than 160 calories per bar, these 50g protein bars are the ultimate healthy snack.
𝗡𝗢 𝗡𝗔𝗦𝗧𝗜𝗘𝗦 – No artificial flavours, no palm oil, no animal products, and no gelatine - stay fuelled with clean plant-based ingredients.
𝗨𝗞 𝗠𝗔𝗗𝗘 – Free Soul Protein Bars are made in the UK using the finest ingredients. They are made in an ISO accredited facility, free from GMO-ingredients. Be Fuelled By Free Soul.
𝗘𝗮𝗰𝗵 𝗕𝗼𝘅 𝗖𝗼𝗻𝘁𝗮𝗶𝗻𝘀 𝟭𝟮 𝗩𝗲𝗴𝗮𝗻 𝗣𝗿𝗼𝘁𝗲𝗶𝗻 𝗕𝗮𝗿𝘀 | 𝗘𝗮𝗰𝗵 𝗕𝗮𝗿 𝗶𝘀 𝟱𝟬𝗴

FULFIL Vitamin and Protein Bars (15 x 55 g Bars) — Chocolate Salted Caramel Flavour — 20 g High Protein, 9 Vitamins, Low Sugar

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Why We Love It

High protein, low sugar snack.
Packed with 9 essential vitamins.
Indulgent yet nutritious flavor.

Main Highlights

HIGH PROTEIN and LOW SUGAR BARS: Each 55g bar contains 20g of protein, less than 3 grams of sugar and only 204 calories. Great for a tasty treat or a post workout refuel
9 VITAMINS: Each FULFIL bar contains 30 percent RDA for 9 essential vitamins to support you through everyday life
DELICIOUS and NUTRITIOUS: FULFIL bars are not your average protein bar. Our Chocolate Salted Caramel Flavour contains an indulgent milk chocolate coating surrounding a soft, silky salted caramel centre topped with a layer of crispy pieces
OUR PACKS CONTAIN 15 BARS: So you never run out of your favourite protein bar.
LIFE'S WONDERFUEL: We want FULFIL bars to fuel you on all of your everyday adventures, whether it’s to get you through your work day, hiking up a mountain, a workout, or a sofa snack we’ve got you covered

Protein Works - Ultimate Diet Breakfast Shake , Low Calorie Breakfast Shake , High Protein , Low Sugar Breakfast , 36 Servings , Banana Cake , 2kg

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Why We Love It

Nutritionally complete morning meal.
Helps with healthy eating.
Supports weight loss efficiently.

Main Highlights

Nutritionally Complete: Ultimate Diet Breakfast Shake is the ultimate instant morning meal, specially formulated with a unique blend of nutritious ingredients
Don't Skip Breakfast: Save time by not having to prepare breakfast or grabbing something on the move
Low in Calories: Under 250 calories per shake it couldn't be easier to stick to your healthy eating plan
Weight-Loss Solution: Ultimate Diet Breakfast shake is specifically designed to help suppoer healthy weight loss, keeping you fuller for longer and suppressing your appetite

Gluten Free Snacks - On-the-Go Oat-Based, Low Calorie, Delicious Snacks for Adults - High Fibre, No Sugar, Low Fat Vegan Food w/Natural Ingredients - 12 pcs Raspberry Jam Oaty Pockets by Pri Bakes

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Why We Love It

Light and nutritious vegan snacks.
Sugar-free and deliciously simple.
Recyclable packaging for a cleaner future.

Main Highlights

Your New Favourite Bite-Sized Treats: Discover our light and nutritious vegan snacks. Unlike most energy bars on the market, Pri Bakes Oaty Pockets are low calorie snacks. These gluten-free cookies taste great and have fibre content to meet your nutritional needs.
Deliciously Simple and Natural Ingredients: All flavours of Pri Bakes Oaty Pockets are yummy and not too sweet. These sugar free snacks are made with wholesome ingredients: oats, nuts, oil, coconut sugar, dates, raspberries, hazelnut and cinnamon—low sat-fat oils and pure vegan Oaty Bakes.
Satisfy Your Cravings: You don’t have to keep yourself from eating a tasty treat! With our easy to eat gluten free biscuits, you can have a bite anytime you want without affecting your overall calorie intake.
Contributing to a Cleaner Future: The packaging of our snack bars is recyclable, and each ingredient of our Oaty Pockets is 60% locally sourced and grown. Our products are not just wholesome and tasty but also care for the planet!
Let’s Bake Your Day Even Sweeter: At Pri Bakes, we’re changing how we think about bakery. We’re on a mission to deliver a mouth-watering indulgence that only uses natural ingredients.

Yubi Mix Variety Box 12 Pack - Protein Bars - 99 Calories, High Protein, High Fibre, Low Sugar, Gluten Free and Dairy Free - Healthy Snacks/Nutrition Bar - Chocolate Bars - 420g

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Why We Love It

Tastes like a chocolate bar.
Only 99 calories per serving.
Vegan and gluten-free.

Main Highlights

🌱 PROOF IS IN THE TASTING – We have spent years developing a protein bar which tastes just like a chocolate bar. Find out for yourself what all the fuss is about.
🍬 LOW SUGAR, 99 CALORIES - We take pride in offering products that are both low in sugar and low in calories, allowing you to enjoy a healthier option without sacrificing flavour.
🌾 GLUTEN & DAIRY FREE - Crafted in a gluten and dairy free facility, YuBi Bars are made for everyone.
😍 DELICIOUS FLAVOUR – With four delicious flavours to chose from, you will be sure to find your favourite in no time.
💚 VEGAN, RAINFOREST ALLIANCE CHOCOLATE - Manufactured in a vegan facility, YuBi Bars are enrobed in rich Rainforest Alliance Chocolate, ensuring a delightful and eco-conscious treat for all chocolate enthusiasts.
🌸 SUITABLE FOR MULTIPLE DIETARY REQUIREMENTS - All our bars are suitable for individuals following vegan, diabetic and coeliac diets, offering a delicious and inclusive option for a variety of dietary preferences and restrictions.
🌍 COMMITMENT TO SUSTAINABILITY - Made in the UK with 100% plant-based ingredients and packaged responsibly in recyclable FSC cardboard packaging, we are always looking for innovative ways to improve our carbon footprint.

8.7

Excellent

We scanned 543 products

We reviewed these offers relevant to the Low Calorie Protein Breakfast 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 Huel, GET BUZZING, BAREBELLS, Warrior, Keto Keto, Free Soul, Fulfil, Protein Works, PRI'S, Yubi Bar, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Low Calorie Protein Breakfast Bars in the market, we considered we took a deep dive into 2716 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 Huel Complete Nutrition Bar, 12 x 51g Bars, Peanut Caramel, High Protein Bar, Plant-Based Protein Bars, Low Sugar, High Fibre, High-Protein Snack with Vegan Chocolate, Under 200 Calories. We love many things about this product by Huel. What sets it apart from the competition is Rich, indulgent vegan chocolate, High-protein, guilt-free snack, Certified V-label, low sugar.
The best value product for most shoppers and where user satisfaction is continuously the highest is Get Buzzing Flapjacks Packs of 20 (20 Pack, Banana) by GET BUZZING based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Low Calorie Protein Breakfast Bars and the best cost-to-value ratio is Protein Works - Ultimate Diet Breakfast Shake , Low Calorie Breakfast Shake , High Protein , Low Sugar Breakfast , 36 Servings , Banana Cake , 2kgat Protein Works with a 35% discount.
Our list of the best Low Calorie Protein Breakfast 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 Low Calorie Protein Breakfast Bars in The UK

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We scanned 543 products

We concluded that: