Protein Bars: everything you need to know
Welcome to our comprehensive guide to protein bars —your one-stop resource for finding the perfect on-the-go snack that fuels muscle gain, enhances recovery, and meets your nutritional needs. Protein bars offer a convenient way to top up essential nutrients when you’re busy, ensuring you get the protein punch necessary to build and repair muscles while supporting your overall health.
But with so many brands and flavours available, how do you know which bars taste great, are healthy enough for daily consumption, and truly deliver on their promises?
We’ve rigorously tested all the leading brands, from crowd-pleasers like Grenade and Mars to innovative newcomers like Huel, to bring you a curated selection of protein bars that combine quality ingredients, delicious flavours, and outstanding nutritional value.
Read on for our in-depth reviews and expert advice. Whether you’re looking to enhance post-workout recovery or simply need a convenient, nutrient-rich snack throughout the day, our guide is your key to unlocking the perfect protein bar for your muscle gain.
Best Protein Bars uk: Quick Look
For a rapid overview of our top picks, here’s a quick look at the best protein bars in various categories:
Best Overall Protein Bar:
Huel Bars – Exceptional balance of ingredients and performance for everyday use.Best High Protein Bar:
Grenade Bars – Packed with protein to support intense muscle repair and recovery.Best Protein Bar for Muscle Gain:
Huel Bars – Designed to deliver the ideal nutrient breakdown to maximise muscle growth.Best Value Bars:
Muscle Moose Dinky Bars – Great performance at an affordable price point.Best Tasting Protein Bars:
Snickers Bars – Enjoy mouthwatering flavours coupled with the protein you need.Best Weight Loss/Diet Bar:
Applied Nutrition Diet Bars – Perfect for those looking to manage their calorie intake while still enjoying a nutritious snack.
Integrate these options into your daily routine to meet your fitness and muscle gain goals with ease. Find the perfect protein bar that aligns with your taste, budget, and nutritional needs.
table of contents
Best Protein Bar Picks for Muscle Gain Uk 2025: quick reviews
Here’s a selection of protein bars we recommend to help with a muscle building diet. These bars offer a variety of flavours and are crafted with quality ingredients:
- Grenade Protein Bars Review:
- Known for their delicious flavors and high-quality protein content.
- Pros: High protein, low carb, exceptional taste.
- Ideal for: Muscle gain and post-workout recovery.
- Snickers Low Sugar Protein Bars Review:
- A healthier alternative to the classic Snickers bar with reduced sugar and added protein.
- Pros: Classic taste, high protein, low sugar.
- Ideal for: On-the-go snacking and muscle gain.
- Cnp ProDoug Bars Review:
- Great flavors, quality ingredients, and high in protein.
- Pros: High-quality protein, indulgent flavors, low sugar caramel filling.
- Ideal for: Muscle gain and satisfying sweet cravings healthily.
- Mars High Protein Bars Review:
- Enjoy the classic Mars taste with added protein for muscle recovery.
- Pros: Familiar taste, high protein.
- Ideal for: Post-workout recovery and muscle gain.
- CNP Protein Bars Review:
- Crafted with quality ingredients to provide a protein-packed snack.
- Pros: High protein, oats blend for sustained energy.
- Ideal for: Muscle gain and satisfying hunger between meals.
- Muscle Moose Dinky Bars Review:
- A unique twist on protein bars with there size, these are a tasty way to increase your protein intake.
- Pros: High protein, great flavours.
- Ideal for: On-the-go snacking and muscle gain.
- Huel Bars Review:
- A full nutrient protein bar to help build muscle.
- Pros: High protein, low sugar, vegan.
- Ideal for: Muscle gain and overall health.
How to Pick a Protein Bar for Muscle Gain
Selecting the right protein bar can play a pivotal role in your muscle repair and growth. Here are the key nutritional components to consider:
Protein Content
- Aim for 10-25 grams per serving:
A sufficient protein punch is essential for muscle repair and post-workout recovery.
Carbohydrate Content
- Tailor to your goals:
- For muscle gain or effective post-workout recovery, opt for bars with 5-10 grams of carbs per serving.
- Lower-carb options can also benefit those focusing on weight management while still providing energy.
Fat Content
- Focus on healthy fats:
- Look for bars that include beneficial unsaturated fats.
- Steer clear of high saturated or trans fats, especially if weight loss is a priority.
By keeping these factors in mind, you can choose a protein bar that not only fuels your muscles but also aligns with your overall dietary goals. Always read labels and compare nutritional content to find the best fit for your muscle gain.
Best Protein Bars Uk 2025: top choices & Reviews
Huel Bars Review
Huel Bars: Your Ultimate High-Protein, Low-Sugar Snack
Why Choose Huel Bars?
High Protein:
Looking to replenish your energy levels after a workout? With 13g of protein per bar, Huel Bars provide the perfect post-exercise boost, helping you recover and rebuild muscle strength effectively.
Low Sugar:
Craving something sweet without the guilt? Huel Bars contain minimal sugar, offering a satisfying sweetness without compromising on your health goals. Enjoy the taste without worrying about excess sugar intake.
Under 200 Calories:
Watching your calorie intake? Each Huel Bar contains fewer than 200 calories, making it an ideal guilt-free indulgence for those conscious of their calorie consumption.
170 Health Benefits:
Fuel your body with essential vitamins and minerals with Huel Bars. Packed with 170 health benefits, these bars support your overall well-being, ensuring you stay nourished and energized throughout the day.
Indulgent Vegan Chocolate:
Satisfy your sweet tooth with the rich taste of vegan chocolate, guilt-free. With Huel Bars, you can indulge in the decadent flavor of chocolate while making a conscious choice for your health and the environment.
High Fiber, Low Salt:
Rich in fiber, Huel Bars aid in digestion and help keep you feeling satisfied for longer. Plus, with their low-salt formulation, you can enjoy these bars without worrying about excessive sodium intake.
Snicker High Protein Low Sugar Bar: Review
Snickers Low Sugar Protein Bar: A Delicious and Nutritious Twist on a Classic Favorite
Satisfy your cravings for the iconic flavors of Snickers while fueling your body with protein and minimizing sugar intake with Snickers Low Sugar Protein Bar. Indulge in the irresistible combination of caramel, nougat, and peanuts enveloped in a rich chocolaty coating, all packed into a convenient snack bar.
Why Choose Snickers Low Sugar Protein Bar?
High Protein, Low Sugar:
With a generous 20g of protein and only 2g of sugar per bar, Snickers Low Sugar Protein Bar offers a delicious and satisfying way to boost your protein intake without compromising on taste or health goals.
Classic Snickers Taste:
Experience the familiar and beloved flavors of Snickers in every bite, from the creamy caramel to the chewy nougat and crunchy roasted peanuts, all wrapped in a decadent milk chocolate coating.
Convenient Snack:
Whether you’re in need of a quick pick-me-up between meals or seeking post-workout fuel, Snickers Low Sugar Protein Bar is the perfect on-the-go snack to keep you satisfied and energized throughout the day.
Moderate Calorie Content:
At just 232 calories per bar, Snickers Low Sugar Protein Bar offers a sensible choice for those mindful of their calorie intake while still craving a delectable treat. Enjoy it between meals or after a workout to replenish protein levels and quell cravings.
Cnp Protein Bars: Review
Treat yourself to the delectable taste of CNP Protein Flapjack Bars, the ultimate snack to fuel your muscles and satisfy your cravings. Crafted with a premium protein blend and wholesome oats, these bars are designed to support muscle growth, repair, and recovery, making them a must-have addition to your fitness routine.
Why Choose CNP Protein Flapjack Bars?
High-Quality Protein:
Each CNP Protein Flapjack Bar boasts a generous 18g of protein sourced from whey protein concentrate and milk protein. Packed with essential amino acids, these bars provide the perfect fuel to support muscle maintenance and growth, helping you reach your fitness goals.
Glutamine Peptides:
Formulated with glutamine peptides derived from hydrolyzed wheat protein, CNP Protein Flapjack Bars go the extra mile in promoting muscle recovery and enhancing immune function. With this added boost, you can recover faster and get back to your workouts with renewed vigor.
Oats Blend:
Experience the nutritional benefits of oats with CNP Protein Flapjack Bars. The oats blend not only provides sustained energy release but also offers dietary fiber to keep you feeling full and satisfied, making these bars an ideal snack option for any time of the day.
No Added Sugar White Chocolate Coating:
Indulge guilt-free with the delicious white chocolate coating that contains no added sugar. With CNP Protein Flapjack Bars, you can enjoy a sweet treat without worrying about unnecessary sugar intake, making them a wholesome yet tasty snack choice.
Suggested Use:
Whether you need a convenient snack between meals, pre-workout fuel, or a post-workout recovery aid, CNP Protein Flapjack Bars have you covered. Enjoy them whenever hunger strikes or as part of your fitness regimen to support your goals.
Grenade High Protein Bars: Reviews
Grenade Carb Killa Protein Bars: Your Ultimate Guilt-Free Indulgence
Satisfy your cravings without derailing your fitness goals with Grenade Carb Killa Protein Bars. Crafted with precision using a unique baking process, these bars offer a softer, crunchier texture that tantalizes the taste buds with every bite. Packed with high-quality proteins, low impact carbs, and dietary fiber, Carb Killa Bars are the perfect guilt-free indulgence for any time of the day.
Why Choose Grenade Carb Killa Protein Bars?
High Protein, Low Carb:
Fuel your body with complete proteins and keep carbs in check with Grenade Carb Killa Bars. With less than 1.5g of sugar and 1.5g of high impact carbs per bar, they’re the ideal snack to support muscle repair and keep you feeling satiated for longer periods.
Exceptional Taste:
Experience an unparalleled taste sensation with Carb Killa Bars, thanks to their specially selected baking process. Whether you’re craving something sweet or savory, these bars deliver a flavor experience that surpasses other protein bars on the market.
Convenient Snack:
Designed for on-the-go snacking, Carb Killa Bars are the perfect companion for busy lifestyles. Whether you need a quick energy boost between meals or a post-workout refuel, these bars provide the perfect balance of protein and flavor to keep you satisfied and fueled for your day.
Indulge in the irresistible taste of Grenade Carb Killa Protein Bars guilt-free and fuel your body with the nutrition it needs to conquer the day. With their exceptional taste, high protein content, and convenient size, Carb Killa Bars are the perfect choice for a delicious and satisfying snack, anytime, anywhere.
Cnp ProDoug Protein Bars: Review
CNP ProDough: Your Guilt-Free Doughnut-Inspired Protein Treat
Experience the delectable taste of doughnuts in a convenient and nutritious format with CNP ProDough protein bars! These indulgent bars are not your average snack – each bite transports you to a doughnut paradise, delivering a mouthwatering experience reminiscent of your favorite sweet treat. With a quality source of protein and irresistible flavors, CNP ProDough bars are the perfect solution for satisfying cravings while supporting your fitness goals.
Why Choose CNP ProDough Protein Bars?
Irresistible Taste:
Prepare your taste buds for a flavor explosion with CNP ProDough bars. Crafted to perfection, these center-filled bars offer a decadent taste sensation that will leave you craving more. Indulge in the rich flavors of doughnuts without compromising on your health and fitness journey.
High-Quality Protein:
Fuel your body with 17g of protein per serving from a premium blend of milk proteins, hydrolyzed wheat protein, and soy protein isolate. CNP ProDough bars provide the essential amino acids needed to support muscle growth and repair, making them an ideal snack for active individuals.
Low Sugar Caramel:
Satisfy your sweet tooth without the guilt with CNP ProDough bars. Featuring a delicious low sugar caramel filling, these bars add sweetness to your snack time without the unnecessary calories. Indulge in the rich, creamy caramel flavor while staying on track with your health goals.
Caramel Chocolate Coating:
Enveloped in a luscious caramel chocolate flavor coating, CNP ProDough bars offer a luxurious and satisfying texture with every bite. The creamy chocolate exterior enhances the overall flavor profile, making each bar a delightful treat for your taste buds.
Suggested Use:
Enjoy CNP ProDough bars any time of the day as a tasty snack or post-workout fuel. Whether you need a quick pick-me-up between meals or a protein-packed treat after hitting the gym, CNP ProDough bars are the perfect solution for your cravings.
The Big Debate: Are Protein Bars Healthy?
Protein bars have gained popularity as a convenient source of essential nutrients, especially for those with active lifestyles. However, before incorporating them into your diet, it’s important to weigh their health benefits against potential drawbacks. In this guide, we break down both sides of the debate so you can make an informed decision about including protein bars in your nutritional regimen.
Healthy Factors
Convenient Protein Source
Protein bars offer a portable, hassle-free option to meet your daily protein needs. They’re perfect for busy individuals looking to manage hunger between meals or when on the go.
Muscle Recovery and Growth
Protein is crucial for muscle repair and growth. Well-formulated protein bars can serve as effective post-workout snacks, helping to replenish muscle tissues and support your fitness goals.
Enhanced Nutrient Intake
Many protein bars are fortified with vitamins and minerals, delivering additional nutritional benefits beyond just protein. This can be especially beneficial for those with specific dietary requirements or nutritional deficiencies.
Not-So-Healthy Factors
Added Sugars
Some commercial protein bars contain high levels of added sugars to improve flavor. These added sugars can counteract potential health benefits. Check the nutrition labels and choose bars with lower sugar content.
Calorie Density
Protein bars can be calorie-dense. Consuming too many without accounting for your total daily caloric intake may lead to unwanted weight gain, particularly if you are not following a muscle gain diet.
Artificial Ingredients
Certain protein bars include artificial sweeteners, preservatives, and additives to enhance taste and extend shelf life. If you’re aiming for a whole-food, minimally processed diet, be sure to read labels carefully.
Inadequate Nutrient Variety
While protein bars can help fill nutritional gaps, relying solely on them might result in missing out on other essential nutrients provided by a varied, balanced diet.
The Final Take
Protein bars can be a convenient and effective way to supplement your protein intake and aid in muscle recovery—when chosen wisely. Look for bars with balanced macronutrients, minimal added sugars, and natural ingredients. Remember that protein bars should complement a well-rounded diet, not replace whole foods entirely.
Quick Summary
Benefits:
- Convenient Protein Source: Ideal for busy lifestyles and on-the-go snacking.
- Muscle Recovery and Growth: Supports efficient post-workout muscle repair.
- Enhanced Nutrient Intake: Many bars boost your vitamin and mineral intake.
Drawbacks:
- Added Sugars: Opt for bars with minimal added sugars.
- Calorie Density: Consume mindfully to avoid excess caloric intake.
- Artificial Ingredients: Check labels to avoid unwanted additives.
By integrating protein bars thoughtfully into your diet, you can harness their benefits to support your overall health and muscle-building goals while avoiding potential pitfalls.
Frequently asked questions
Ideal for various situations like long drives, pre/post-workout snacks, and busy days.
Yes, they are a convenient way to increase protein intake, especially on a mass-gaining diet.
Yes, they can help control hunger and prevent overeating when integrated into a balanced diet.
Yes, look for plant-based protein bars labeled as vegan or vegetarian-friendly.
They can be a convenient option, but should not replace whole foods entirely.
For skinny guys looking to gain muscle, some of the top mass gainers include Mutant Mass Extreme 2500, Mutant Mass, USN Muscle Fuel Anabolic, USN Hyperbolic Mass, and Optimum Nutrition Serious Mass. Any of these options are great for individuals with fast metabolisms and specific muscle-gaining goals.
For those who struggle significantly with gaining weight, we recommend Mutant Mass Extreme 2500 or USN Hyperbolic Mass. These products are specifically designed for people with fast metabolisms and will effectively support muscle gain.
Overall, all of these mass gainers will help anyone looking to build muscle and achieve their fitness goals.
Typically several months to a year; check the expiration date on the packaging.
Yes, they can be used in various recipes or softened in the microwave for a warm treat.
Some do; opt for bars with natural ingredients if you prefer minimal processing.
Yes, they can support goals like bulking or cutting depending on their nutritional content.
They offer convenience and portability, but whole foods provide a broader range of nutrients.
Yes, consuming them after exercise helps replenish protein stores and aids muscle recovery.
Our top choices of protein bars for muscle gain in the Uk 2025 are Grenade protein bars, CNP Pro Dough Bars, Huel Bars, Snickers Low Sugar bars, Muscle Moose Dinky Bars and CNP Protein Flapjacks.