10 Best Protein Bars for Weight Loss
Protein bars. They’re super convenient and packed with all the right nutrition that a gym junkie would ever need. Or are they?
For years, food companies have promoted protein bars as healthy alternatives to a full meal. Ideal for that extra shot of energy that will carry you throughout the day and all the way to that gym workout. However, more often than not, most conventional protein bars are packed with carbohydrates and processed sugar which makes them great. All of this is disastrous for any type of fitness regime that you’re trying to keep to.
This is why an ever-increasing number of entrepreneurs have decided to come out on their own to market their own range of protein bars. While pricey, this new generation of protein bars are formulated to be low in carbohydrates but packed with energy and suitable for both vegan and diabetic consumers.
So, with all of that in mind, let’s take a look at a selection of protein bars that we’ve put together just for you.
- 10 Best Protein Bars for Weight Loss
- The Verdicts
- Grenade Carb Killa High Protein and Low Carb Bar review
- PhD SmartPlant Bar review
- RXBAR Chocolate Sea Salt Protein Bar review
- TREK Plant Protein Flapjacks Protein Bar review
- PhD Nutrition High Protein Flapjack+ Bars review
- Optimum Nutrition Protein Crisp Bar with Whey Protein Isolate review
- Maximuscle Protein Bar review
- SCI-MX Nutrition High Protein Cookie review
- THE PROTEIN WORKS Ridiculous Vegan Protein Bar review
- Warrior Raw High Protein Bar review
- 10 Best Protein Bars for Weight Loss Buyers Guide
The Verdicts



Grenade Carb Killa High Protein and Low Carb Bar
Our Verdict
Brand | Grenade |
Flavour | Various |
Servings | 60g per bar |
Packaging | 12 bars per box |
Vegan-Friendly | No |
Contains Dairy Products | Yes |
Contains Nuts | Yes |
What we think:
From Grenade, the Carb Killa is a low-carb, high-protein powerbar specially formulated for those looking to shed some extra pounds. Packed with plenty of protein and nutrition, this bar helps you pack on muscle and stay energetic throughout the day.
With several flavours to choose from and a great taste, this is a great companion for any gym or fitness junkie. It’s only downsides are that it’s not vegan-friendly and contains dairy products.



PhD SmartPlant Bar
Our Verdict
Brand | PhD |
Flavour | Various |
Servings | 63 g per bar |
Packaging | 12 bars per box |
Vegan-Friendly | 3 Vegan-Friendly Flavours |
Contains Dairy Products | Yes |
Contains Nuts | Yes |
What we think:
Phd SmartPlant bar is a plant-based protein bar which provides high amounts of protein with a low amount of sugar. This plant-based protein bar comes with a vegan and non-vegan option making it ideal for vegans looking for that extra boost of energy while on the go. These organic protein bars are well balanced in terms of texture and taste, producing a product which is not too sweet, while being smooth and creamy in texture, creating the perfect balance for the palette.



RXBAR Chocolate Sea Salt Protein Bar
Our Verdict
Brand | RXBAR |
Flavour | Various |
Servings | 62g per bar |
Packaging | 12 bars per box |
Vegan-Friendly | No |
Contains Dairy Products | Yes |
Contains Nuts | Yes |
What we think:
RXBAR Chocolate Sea Salt Protein Bars uses all natural ingredients with no extra artificial flavouring, colouring or preservatives.RXBAR comes with a high serving of protein and nutrients from all of the egg whites and nuts that is used. RXBARS taste great while being a healthy option for those that are looking for a quick and nutritious snack on the run.



TREK Plant Protein Flapjacks Protein Bar
Our Verdict
Brand | TREK |
Flavour | Various |
Servings | 50 g per bar |
Packaging | 16 bar per box |
Vegan-Friendly | No |
Contains Dairy Products | Yes |
Contains Nuts | Yes |
What we think:
TREK Plant Protein Flapjacks Protein Bar is perfect for sports and fitness fans, as it fuels their energetic lifestyle. These protein bars are gluten and wheat free while still being nourishing and fulfilling with high amounts of protein. TREKS protein bars are perfect to keep you going throughout the day and give you that pick up of energy when you need it the most.



PhD Nutrition High Protein Flapjack+ Bars
Our Verdict
Brand | PhD |
Flavour | Various |
Servings | 75g per bar |
Packaging | 12 bar per box |
Vegan-Friendly | No |
Contains Dairy Products | Yes |
Contains Nuts | Yes |
What we think:
PhD Nutrition High Protein Flapjack is for you, if you plan to hit the gyms and build up your physique. The reason being there is a high amount of protein and carbs while having a low amount of sugar. This quick and convenient snack will provide the essentials protein required for the body when building muscles. These flapjacks are also a great replacement for a meal, for those moments when you are in a rush.



Optimum Nutrition Protein Crisp Bar with Whey Protein Isolate
Our Verdict
Brand | Optimum |
Flavour | Various |
Servings | 65 g per bar |
Packaging | 10 per box |
Vegan-Friendly | No |
Contains Dairy Products | Yes |
Contains Nuts | Yes |
What we think:
Optimum Nutrition Crisp Bar is low in carbs and high in protein, with no added sugar making it perfect for a in between meals snack. This high protein snack bar is perfect for any health-conscious foodie as they taste great and seem more like a treat rather than a diet plan. It is a healthy alternative for when a conventional meal is not available.



Maximuscle Protein Bar
Our Verdict
Brand | Maximuscle |
Flavour | Various |
Servings | 55 g per bar |
Packaging | 12 per pack |
Vegan-Friendly | No |
Contains Dairy Products | Yes |
Contains Nuts | Yes |
What we think:
Maximuscle Protein bars are rich in nutrients and protein to help aid maximise muscle growth and performance. This bar will enrich your diet with extra proteins and nutritions that help the body to keep running at optimal levels.Ideal for those with busy schedules and athletes looking for a quick source of protein and energy.



SCI-MX Nutrition High Protein Cookie
Our Verdict
Brand | SCI-MX |
Flavour | Various |
Servings | 75 g per cookie |
Packaging | 12 cookies per box |
Vegan-Friendly | No |
Contains Dairy Products | Yes |
Contains Nuts | Yes |
What we think:
SCI-MX Nutrition High Protein Cookie is a great tasting snack while still being good for your diet. These cookies are low in sugar and high in protein making it great for a post-workout snack or filler between meals. Providing a healthy option in the form of a tasty snack, these cookies are definitely worth the try.



THE PROTEIN WORKS Ridiculous Vegan Protein Bar
Our Verdict
Brand | THE PROTEIN WORKS |
Flavour | Various |
Servings | 50 g per bar |
Packaging | 9 bars per box |
Vegan-Friendly | Yes |
Contains Dairy Products | No |
Contains Nuts | Yes |
What we think:
THE PROTEIN WORKS Ridiculous Vegan Protein Bar is a full plant-based protein suitable for vegans looking for that boost of protein in their diet. The high amounts of protein and fibre in this bar keeps you full and energised throughout the day. This bar also has low amounts of sugar and is gluten free, making it a great health-conscious choice.



Warrior Raw High Protein Bar
Our Verdict
Brand | WARRIOR |
Flavour | Various |
Servings | 75 g per bar |
Packaging | 12 bars per box |
Vegan-Friendly | No |
Contains Dairy Products | Yes |
Contains Nuts | Yes |
What we think:
Warrior Raw High Protein Bars is high in protein and fibre with low amounts of sugar. These bars are a perfect snack before or after a gym session, as they will provide energy and also protein for the repairing and rebuilding of muscles. Convenient for those on the go, these bars are not only tasty but healthy at the same time.
Image | Product Name | Our Rating | Our Verdict | Check Price | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() | Grenade Carb Killa High Protein and Low Carb Bar |
What we think:
From Grenade, the Carb Killa is a low-carb, high-protein powerbar specially formulated for those looking to shed some extra pounds. Packed with plenty of protein and nutrition, this bar helps you pack on muscle and stay energetic throughout the day.
With several flavours to choose from and a great taste, this is a great companion for any gym or fitness junkie. It’s only downsides are that it’s not vegan-friendly and contains dairy products. | CHECK PRICE | |||||||||||||||
![]() | PhD SmartPlant Bar |
What we think:
Phd SmartPlant bar is a plant-based protein bar which provides high amounts of protein with a low amount of sugar. This plant-based protein bar comes with a vegan and non-vegan option making it ideal for vegans looking for that extra boost of energy while on the go. These organic protein bars are well balanced in terms of texture and taste, producing a product which is not too sweet, while being smooth and creamy in texture, creating the perfect balance for the palette. | CHECK PRICE | |||||||||||||||
![]() | RXBAR Chocolate Sea Salt Protein Bar |
What we think:
RXBAR Chocolate Sea Salt Protein Bars uses all natural ingredients with no extra artificial flavouring, colouring or preservatives.RXBAR comes with a high serving of protein and nutrients from all of the egg whites and nuts that is used. RXBARS taste great while being a healthy option for those that are looking for a quick and nutritious snack on the run. | CHECK PRICE | |||||||||||||||
![]() | TREK Plant Protein Flapjacks Protein Bar |
What we think:
TREK Plant Protein Flapjacks Protein Bar is perfect for sports and fitness fans, as it fuels their energetic lifestyle. These protein bars are gluten and wheat free while still being nourishing and fulfilling with high amounts of protein. TREKS protein bars are perfect to keep you going throughout the day and give you that pick up of energy when you need it the most. | CHECK PRICE | |||||||||||||||
![]() | PhD Nutrition High Protein Flapjack+ Bars |
What we think:
PhD Nutrition High Protein Flapjack is for you, if you plan to hit the gyms and build up your physique. The reason being there is a high amount of protein and carbs while having a low amount of sugar. This quick and convenient snack will provide the essentials protein required for the body when building muscles. These flapjacks are also a great replacement for a meal, for those moments when you are in a rush. | CHECK PRICE | |||||||||||||||
![]() | Optimum Nutrition Protein Crisp Bar with Whey Protein Isolate |
What we think:
Optimum Nutrition Crisp Bar is low in carbs and high in protein, with no added sugar making it perfect for a in between meals snack. This high protein snack bar is perfect for any health-conscious foodie as they taste great and seem more like a treat rather than a diet plan. It is a healthy alternative for when a conventional meal is not available. | CHECK PRICE | |||||||||||||||
![]() | Maximuscle Protein Bar |
What we think:
Maximuscle Protein bars are rich in nutrients and protein to help aid maximise muscle growth and performance. This bar will enrich your diet with extra proteins and nutritions that help the body to keep running at optimal levels.Ideal for those with busy schedules and athletes looking for a quick source of protein and energy. | CHECK PRICE | |||||||||||||||
![]() | SCI-MX Nutrition High Protein Cookie |
What we think:
SCI-MX Nutrition High Protein Cookie is a great tasting snack while still being good for your diet. These cookies are low in sugar and high in protein making it great for a post-workout snack or filler between meals. Providing a healthy option in the form of a tasty snack, these cookies are definitely worth the try. | CHECK PRICE | |||||||||||||||
![]() | THE PROTEIN WORKS Ridiculous Vegan Protein Bar |
What we think:
THE PROTEIN WORKS Ridiculous Vegan Protein Bar is a full plant-based protein suitable for vegans looking for that boost of protein in their diet. The high amounts of protein and fibre in this bar keeps you full and energised throughout the day. This bar also has low amounts of sugar and is gluten free, making it a great health-conscious choice. | CHECK PRICE | |||||||||||||||
![]() | Warrior Raw High Protein Bar |
What we think:
Warrior Raw High Protein Bars is high in protein and fibre with low amounts of sugar. These bars are a perfect snack before or after a gym session, as they will provide energy and also protein for the repairing and rebuilding of muscles. Convenient for those on the go, these bars are not only tasty but healthy at the same time. | CHECK PRICE |
When is the best time to have a protein bar? Before or after?
These are the two best times to have a protein bar. Pre-workout, munching on a high-energy protein bar gives your body the fuel that it needs to get started.
Ask any endurance athlete, and they’ll tell you that there’s no worse feeling in the world than when you hit the wall. Hitting the wall is a term used to describe a feeling of extreme sluggishness and fatigue midway through an exercise routine. This occurs when the body’s store of glycogen is depleted, and your muscles literally run out of fuel. When you hit the wall, you’ll find that your body absolutely refuses to cooperate with cold sweats and dizziness following shortly. These symptoms are basically the body’s way of telling you that you’ve run out of gas. Thus, the next time you head to the gym, consider munching on a protein bar to get yourself started.
Post-workout, you may also want to consider snacking on a protein bar on your way home from the gym. Exercise stimulates our muscles and forms micro-tears which heal over time and make us stronger.
In order to recover, your body needs nutrients and energy which stimulate muscle growth. Packed with protein and brimming with nutrition, having a protein bar post-workout does wonders for the recovery process and maximises your gains. Thus the next time you’re headed to the gym, consider packing two of your favourite protein bars with you for the pre and post-workout sessions. You may be surprised to find yourself feeling better and recovering at a quicker rate with these handy snacks.
What are the best protein bars for keto diet?
The keto diet or ketogenic diet is popular with folks looking to burn off visceral fat, build muscle, and lose weight. Those on a keto diet avoid carbohydrates and maximize their intake of fat, protein, and fibre.
All of this is done in order to encourage the body to utilize fat as an energy source. Practitioners of the keto diet swear off carbs and sugar, preferring to get their energy from protein and fat sources. Because of this, it can be rather difficult to track down a protein bar that does not contain sugar or carbohydrates of any kind.
Recognizing this, the manufacturers of TREK Plant Protein Flapjacks Protein Bar have come to realize that keto diet practitioners are ignored on the protein bar market. TREK Plant Protein Flapjacks Protein Bar is made exclusively from plant protein and does not contain any sugar. Thus making it a great choice for vegan gym junkies and those living on a keto diet.
As an added bonus, this is one of the best tasting vegan protein bars that you can buy today.
What are the best protein bars for diabetics?
Thankfully, thanks to modern technology and dieting techniques, diabetes can easily be brought under control. Diabetics live on a strict diet that contains minimal amounts of sugar or carbohydrates in order to keep their glucose levels under control.
Just like keto dieters, diabetics too must avoid sugar and this is why Grenade Carb Killa High Protein and Low Carb Bar is so suitable. Packed with protein, these are some of the best low-carb protein bars available on the market today.
With a variety of flavours, Grenade Carb Killa High Protein and Low Carb Bar is an ideal protein bar for diabetic patients looking for a pick-me-up. These bars are also great for keto diet practitioners and gym junkies who want to cut their sugar intake.
What are the best protein bars for building muscle?
Protein forms the basis of all muscle building exercises. Lifting weights and conducting resistance training forms micro-tears on our muscle tissue. In response, the body regenerates more muscle tissue to fix the damage done – thus resulting in larger, stronger muscles.
Without adequate nutrition however, all of this is in vain and the body struggles to regrow its muscles. With PhD Nutrition High Protein Flapjack, you’ll be able to supply your body with all of the protein you need to build muscle mass.
Thanks to its great taste and low carb formulation, this is without a doubt one of the best protein bars for women.
What are the best protein bars to gain weight?
Put on muscle mass and bulk it up with the Maximuscle Protein Bar. Packed with protein and chocolate, this bar has all the nutrients that you need to build mad muscle mass.
Dirty bulk with one of the best tasting protein bars in the UK today. You’ll be squatting and bench pressing twice your body weight with all of that extra muscle mass.
What are the best protein bars to lose weight?
Most of us head to the gym, to lose some extra pounds and put on muscle. Unfortunately, the battle to lose weight is a difficult one that is uphill most of the time. This is why nutrition is important and why the RXBAR Chocolate Sea Salt Protein Bar is the way to go.
High in protein and coated with dark chocolate, this bar satisfies all of your cravings without you feeling guilty. Thanks to its sea salt flavour, not only is this one of the best tasting protein bars available, it also helps you keep those hunger pangs away.