10 Best Low Calorie Protein Breakfast Bars in The UK

Last updated on 03/05/2025

Advertising disclosure

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

12% OffFree Shipping

Why We Love It

Indulgent yet incredibly healthy.
Perfect on-the-go snack.
Low sugar, high protein.

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.

Barebells Protein Bars – Healthy Snacks, Protein Snacks for Breakfast, Sugar Free Chocolate, Low Carb – 12 x 55g (Salty Peanut)

Free Shipping

Why We Love It

Divine combination of flavors.
Perfect low-calorie snack.
No added sugars.

Main Highlights

SALTY PEANUT - Velvety milk chocolate paired with crunchy, golden peanuts – a divine combination!
HIGH IN PROTEIN - Protein bars from Barebells contain 20g 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

PhD Nutrition Smart Protein Bar Low Calorie, Nutritional Protein Bars/Protein Snacks, High Protein Low Sugar, Chocolate Brownie Flavour, 20g of Protein, 64g Bar (12 Pack)

Free Shipping

Why We Love It

Convenient, tasty, high-protein snack.
Guilt-free chocolate indulgence.
Aids weight loss seamlessly.

Main Highlights

Convenient and Tasty Protein Snack: PHD Smart Protein Bar is designed for on-the-go convenience. It features a soft whey protein core, caramel and protein crispies for a satisfying crunchy texture.
Guilt-Free Snacking: Each bar is topped with a smooth chocolate coating, ensuring guilt-free snacking while keeping your dietary macros in check. GMO-free and Palm Oil Free
Nutritional Bars: These bars deliver 20g of high-quality whey protein and less than 3g of sugar per serving, available in various flavors like Birthday Cake and White Chocolate Blondie.
Weight Loss Aid: Ideal for pre-workout snacking or post-workout recovery, these bars are designed to provide a protein boost when needed, aiding in weight loss through a calorie deficit.
Versatile and Suitable for All: Suitable for both men and women; Smart bars also serve as versatile toppings for homemade recipes, making them a great addition to a lean lifestyle.

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)

Free Shipping

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!

FitnesSHOCK High Protein Bars, 12g Protein, Low Carb, No Added Sugar, Low Calorie 138 Kcal, 5g collagen, Fiber-Rich, Lemon Chia Panacotta Flavor 12x40g

Free Shipping

Why We Love It

Unique, bright flavor combination.
High protein, low sugar.
Fills you up perfectly.

Main Highlights

UNIQUE TASTE: Soft, tender protein filling with lemon panacotta flavour and chia seeds in sugar-free white chocolate icing is a bright alternative to the usual flavours.
HIGH PROTEIN CONTENT: 12g per bar, making it the perfect high-protein snack for pre or post-workout, ideal for athletes. 5G COLLAGEN - extra help for your skin, hair, joints and nails
OUTSTANDING NUTRITIONAL VALUE: Only 3.7g of carbohydrates - truly low carb, rich in fiber with over 14g, meeting nearly half of your daily needs. Incredibly filling. A great snack for any time, providing the necessary energy throughout the day without overburdening.
EXTREMELY LOW IN CALORIES: With only 138 kcal per protein bar, it fits perfectly into any diet and appeals to those mindful of their calorie intake.
NO ADDED SUGAR: Our protein bars are free from added sugars, making them the perfect choice for anyone looking to maintain a low-sugar diet. A much more conscious replacement for a traditional chocolate bar.

Snickers - White Chocolate Low Sugar Protein Bars | 12 x 57g Pack, Only 2g of Sugar per Bar, Hi Protein Energy Snack, 20g Protein

Free Shipping

Why We Love It

Epic taste with high protein.
Uncompromised Snickers flavor.
Great for post-workout snacking.

Main Highlights

The epic taste of Snickers White with 20g of protein and only 2g sugar? Now that’s satisfying!
Snickers White Hi Protein Low Sugar boasts all the caramel, nougat, and peanut flavours you know and love from the iconic Snickers bar, covered in a delicious chocolatey coating.
Only 218 kcals per bar - Not suitable for vegetarians
Perfect to carry you between meals, or as a great post workout snack boost.
One box contains 12 individually wrapped bars.

Misfits Vegan Protein Bars - Updated Recipe | Low Sugar & Carb, High Fibre Snacks | Variety Pack of 12 (4 Flavours)

Free Shipping

Why We Love It

Indulgent yet healthy snack.
Plant-based protein packed.
Low sugar, high fibre.

Main Highlights

HEALTHIER CHOCOLATE SNACK: A chewy & fudgy centre, topped with a layer of indulgent caramel & coated with smooth vegan chocolate & high protein crispy pieces, for a satisfying crunch; ideal on-the-go or office snacks
14-15 G PROTEIN PER BAR: Our plant-based bars pack 14-15 g of vegan protein per bar; we use a blend of pea & soy protein for a deliciously soft texture & taste
LOW SUGAR BARS: These vegan snacks are high in fibre, yet low in sugar, with less than 1 g of sugar per bar; a low carb bar with just 190 calories, for post-gym fuel or breakfast without the sugar crash
GUILT-FREE INDULGENCE: Our satisfying, triple-layered treats are an ideal chocolate snack with all the nutritional benefits of a protein bar & zero compromise on taste; great for chocolate lovers who want to cut back on dairy & sugar
VARIETY MULTIPACK: Each mixed box contains 12 of our most popular candy bars; 4 flavours (may vary), including Cookie Butter, Caramel Fudge, Brownie Batter & Peanut Butter Fudge

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

Free Shipping

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

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

Free Shipping

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.

Yubi 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

Free Shipping

Why We Love It

Tastes just like chocolate.
Low in sugar.
Eco-conscious and vegan.

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 1933 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, BAREBELLS, PhD, Keto Keto, FitnesSHOCK, Snickers, Misfits, Fulfil, 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 9666 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, Dark Chocolate Raspberry, 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 Indulgent yet incredibly healthy, Perfect on-the-go snack, Low sugar, high protein.
The best value product for most shoppers and where user satisfaction is continuously the highest is Barebells Protein Bars – Healthy Snacks, Protein Snacks for Breakfast, Sugar Free Chocolate, Low Carb – 12 x 55g (Salty Peanut) by BAREBELLS 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 Huel Complete Nutrition Bar, 12 x 51g Bars, Dark Chocolate Raspberry, High Protein Bar, Plant-Based Protein Bars, Low Sugar, High Fibre, High-Protein Snack with Vegan Chocolate, Under 200 Caloriesat Huel with a 12% 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

Related Deals You Might Like for Low Calorie Protein Breakfast Bars

Warrior Raw Protein Flapjacks – 12 Bars x 75g Each – Packed with 20g of Protein – Low Sugar, High in Fibre (Double Chocolate)

Perkier Variety Box (8 Bars), Vegan, Gluten Free, Protein, Lower Sugar, Healthy Snacks for Adults, Low Calorie, Halal, Breakfast Bar, High Fibre, Nut, Cereal, Gut Health, Multipack, Plant Based

Protein Works - Ultimate Diet Breakfast Shake , Low Calorie Breakfast Shake , High Protein , Low Sugar Breakfast , 9 Servings , Banana Cake , 500g

Grenade High Protein, Low Sugar Bar - White Chocolate Cookie, 12 x 60 g

EatProtein Chocolate Coconut Protein Wafers, 10 Bars, 9.2g Protein, Low Sugar, High Fibre, Milk Chocolate Coated, Healthy Snack for Women, 162 kcal

The Gut Stuff – High Fibre Fruit & Nut Bars – Mixed Flavours – 12 x 35g Bar Box – Gut Friendly Snack, Gluten Free, Vegan, Low Calorie, All Natural

Guilt Free Low Fat Snack Bars 3 Flavour Variety Pack - with Skinny Crunch Mint, Orange & Salted Caramel Cereal Bars 15 x 19g - Indulgent Low Calorie Snack Bars Healthy Treats for Anytime Cravings

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

FUEL10K Double Chocolate Breakfast Oat Cookie, High Protein & Fibre, 50 g (Pack of 12)

Fitbakes Keto Bread : 2g Carbs, 7g Protein, Low Carb Bread Loaf (16 slices) Multi Seeded, Diabetic Food, Keto Snacks, Protein Snacks Low Calorie Diet, 63 Calories, Fit Bakes

We scanned 1933 products

We concluded that: