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7 Best Keto Bars – Protein, Low Carb Snacks Reviews (UPDATED 2021)

Keto bars are a great dietary resource. If you are looking for a handy, tasty way to snack whilst staying in ketosis, or are simply wanting to cut down your carb intake whilst still enjoying nice treats, they will be perfect for you.


  • High Amount Of Fat And Less On Carbs, Perfect For Keto!
  • Convenient And Perfect Snack For People On Low-Carb Or Keto Diet
  • Very Affordable For Maximum Benefit
  • Best On-the-Go Keto-friendly Snacks



  • Available in 4 different varieties of chocolate flavors
  • Rich in high-quality fats which is very important on ketogenic diet
  • Thousands of satisfied customer reviews which calls it a “game-changer”


  • Choose the flavor you are most comfortable with because you might find the others against to your liking
  • Considerably small compared to other bars and for what you are paying
  • Price might be a little above average compared to others

Many people fear that they won’t be able to eat snack bars on a ketogenic diet or that any bars they can eat will be horrible. This isn’t true, as we will show today.

We have come up with seven top contenders for the top spot after hours of trying and testing various different brands. We’ve found that Keto Bars! are the best.

They give you a great range of MCTs and electrolytes, combined with good quality protein and a mere 3g of carbs per serving. You get all of this along with a smooth, lovely taste.

Here is our list of the best keto bars in the market:

  • Keto Bars! - Best Overall
  • Quest Nutrition Ultimate Variety Pack - Best for Muscle Gains
  • Atkins Almond Butter Meal and Snack Bar Variety Pack - Best Affordable
  • Perfect Keto Bar - Best Flavors
  • SlimFast Keto Fat Bomb Snacks - Best for Sweet Cravings
  • Kiss My Keto Snacks Keto Bars - Best for Beginners

Read on for our reviews.

Top Products According to Experts



Keto Bars!


Quest Nutrition Bars






Perfect Keto








Kiss My Keto


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Best Keto Bars Reviews 2021 (UPDATED)

1. Keto Bars!

  • Ingredients: Peanut Butter, Coconut, Non GMO Erythritol, and Stevia
  • Contains 10 Bars per Pack

The original and one of the best: Keto Bars! are delicious.

They are, of course, high in fat at 21 grams, low carb at only 3 grams, with moderate amounts of protein per serving.

Unlike many keto products, they are also completely vegan. The ketogenic diet is notoriously difficult to follow plant-based, so this is a real treat.

Keto Bars! have a very simple but effective ingredients list. They only contain Peanut Butter, Chocolate, Coconut, Erythritol, Water, Salt and Stevia. You get a rich taste and quite dense, satisfying texture with this: they will melt in your mouth like any good chocolate would.

This being said, they are not particularly sweet. This mi-ght not be desirable for somebody first starting out on ketosis. If you’re used to sweeter foods, Keto Bars! may not be for you.

If you’ve been in ketosis for a while, they will be perfect. Your taste buds will have adapted to a lack of sugar and so the flavours in Keto Bar! will work really well for you. They will also hopefully stop you from getting any sudden hunger pangs or a desire for more sweetness.

Nutritional Value

  • 21g Total Fat (55% Saturated and 0% Trans Fat)
  • 3g net carbohydrates
  • 8g protein
  • 6g Dietary fibers


  • Vegan friendly
  • High protein content


  • Lack of sweetness can be a challenge at first

2. Quest Nutrition Bars

  • Ingredients: Sweetened with Erythritol, Sucralose and Stevia
  • Comes with Different Varieties of Pack with Assorted Flavors

Quest nutrition’s variety pack is a great resource for anyone looking for a high protein content in their diet. If you lift weights, involve yourself in any athletic endeavours, or simply need to up your protein intake, you should consider trying them.

They are lowish carb (4-6 grams per serving) and gluten free. You get around 20 grams of protein per serving, alongside 5-8 grams of fat.

There is no added sugar, which is surprising given their lovely, sweet taste.

One of the best things about this variety pack is the selection of flavours you get: Blueberry Muffin, Double Chocolate Chunk, Chocolate Brownie, Mint Chocolate Chip, Chocolate Chip Cookie Dough, Mocha Chocolate Chip, Chocolate Hazelnut, Oatmeal Chocolate Chip, Chocolate Peanut Butter, S'mores, Cookies and Cream, and White Chocolate Raspberry.

With this kind of offering, you need never be bored by flavours again.

Nutritional Value

  • 7g Total Fat (2g Saturated Fat)
  • 3g net carbohydrate
  • 20g protein
  • 15g Dietary fibers


  • High in protein
  • Gluten-free
  • Great range of flavors


  • Carbs are on the higher side for this kind of product

3. Atkins Almond Butter Keto Bars

  • Ingredients: Sucralose, Guar Gum, Peanut Oil, Soy Lecithin, Collagen, and Protein Blend
  • Contains 24 Bars per Pack

One of the biggest things to recommend these almond butter snack bars is the name behind them: Atkins are one of the biggest original hitters on the ketogenic scene. Dr Robert C. Atkins himself first popularised ketosis back in the nineties with his famous Atkins Diet.

There is more than just branding at work here. Again, it is a variety pack, meaning you get a choice of flavours. There are four here: Chocolate Almond Caramel, Vanilla Pecan Crisp, Lemon, and White Chocolate Macadamia Nut.

All of these are lovely. They are light and crisp, without any artificial colours, flavours or preservatives.

On top of this, the bars are made with real almond butter, ensuring that their nutritional value is excellent. You will get 12-16 grams of protein and 8-11 grams of fibre. Given how much keto diets can often lack adequate fibre levels, this is a huge plus.

Nutritional Value

  • 14g Total Fat (8g Saturated Fat)
  • 2g net carbohydrates
  • 15g protein
  • 11g Dietary fibers


  • Trusted brand
  • Made with real almond butter
  • Choice of flavours
  • Moderate protein and high fibre content


  • Quite pricey

4. Perfect Keto Bar

  • Ingredients: Sucralose, Collagen, MCT, Maltitol, and Corn Syrup
  • Contains 12 Bars per Pack

Perfect Keto advertise their keto bars as being protein packed. They are, in that they contain 10 grams per serving, but this is a little lacklustre compared to some other entries onto this list.

That 10 grams is very good quality, though. It comes from grass-fed bovine collagen. You also get 19 grams of fat, mostly from coconut oil MCTs.

All together, these will improve feelings of satiation whilst giving a very high-quality nutritional burst. There are no artificial flavors or preservatives, only good, clean ingredients. There is a selection of flavors available, all of which are lovely.

These flavors include cinnamon roll, salted caramel, lemon poppyseed, chocolate chip cookie dough, and almond chocolate brownie.

You can buy Perfect Keto Bars in bulk, with a discount for choosing 3 boxes of 12 for a total of 36 bars.

Nutritional Value

  • 18g Total Fat (6g Saturated Fat)
  • 3g net carbohyrates
  • 11g protein
  • 9g Dietary fibers


  • Very good quality ingredients
  • Coconut oil MCTs


  • Not too high in protein

5. SlimFast Keto Fat Bomb Snacks

  • Ingredients: Soy Lecithin, Stevia Leaf Extract, Peanut Oil, Erythritol, and MCT Oil Blend
  • Contains 14 Bars per Pack

SlimFast are another big name in the weight loss supplement community. Though their methodology can be quite controversial in fitness circles, they have come out with a very good product with their Peanut Butter Cup Fat Bomb Snacks.

They are obviously Peanut Butter flavored. Though you may be disappointed if you think they will taste like Reese’s Pieces (they’re not quite that good!) they are still delicious.

Many products like these can end up being horrible with artificial tastes and chalky textures. Fat Bombs are not at all like that, SlimFast's are excellent tasting, with a very satisfying feel to them.

You get 14 servings per box. Each serving contains 90 calories, with 1 gram of carbs and 9 grams of protein.

They are not the best product on this list nutritionally, and they are pretty pricey, but these Peanut Butter Cups are a solid, well flavored option for a quick keto snack.

Nutritional Value

  • 8g Total Fat (5g Saturated Fats)
  • 2g net carbohydrates
  • 2g protein
  • 3g Dietary fibers


  • Lovely taste
  • Very low carb


  • Not much protein

6. Bulletproof Collagen Protein Bar

  • Ingredients: Collagen, XCT Oil, and Octane Oil
  • Contains 12 Bars per Pack

Bulletproof’s Collagen Protein Bar are really effective and consistent. They have a shortbread taste and consistency that really does make them feel like a treat. The lemon cookie flavor is amazing, and they don’t tend to crumble, unlike many similar, competing products.

The collagen protein is from grass-fed cows, meaning that they have the same amino acid profiles found in bone broths. These are the building blocks of bone, joints, skin and muscle, making them essential to healthy living.

In addition to being perfect for keto diets, these bars are also completely gluten-free and are suitable for paleo followers. Bulletproof's Collagen Protein Bars also feature added Brain Octane oil and XCT oil to make sure that your energy levels remain steadily elevated throughout the day. These pure and natural oils offer a reliable and quick way of achieving ketosis.

Nutritional Value

  • 14g Total Fat (6g Saturated Fats)
  • 7g net carbohydrates
  • 12g protein
  • 5g Dietary fibers


  • Delicious!
  • Good quality ingredients
  • Added brain octane and XCT oils
  • Gluten-free


  • None, really

7. Kiss My Keto Snacks Keto Bars

  • Ingredients: Stevia Extract, Lo Han Guo, Chicory Root Fiber, MCT, Sunflower Lecithin, and Protein Isolates
  • Contains 12 Bars per Pack

Kiss My Keto’s Keto Bars are very high in fat, with moderate protein levels and only 3 grams of carbs, making them the perfect accompaniment to any ketogenic diet.

The bars are available in three different flavors: Chocolate Cookie Dough, Chocolate Coconut and Chocolate Peanut Butter. Each one is delicious- far nicer than their competitors’ flavors. They are smooth and chewy, though the Cookie Dough flavor is perhaps slightly on the dry side.

These keto bars are also filled with MCTs, aiding your journey into ketosis. They also bring a good dose of prebiotic fiber.

Fiber can be a little hard to come by in ketogenic diets. It is crucial for a healthy gut, so needs to be included wherever it can be. It is also very filling, adding to the satiation that products like these bars should bring.

They are nevertheless perfect for any ketogenic diet.

Nutritional Value

  • 20g Total Fat (13g Saturated Fats)
  • 3g net carbohydrates
  • 10g protein
  • 11g Dietary fibers


  • High Protein
  • Added Prebiotic Fibres
  • Top quality Dietary Fiber and MCT


  • Lower protein than other products

How to Pick the One for Your Needs

There are a few things to consider when looking for the best low-carb snack bars that fits your lifestyle when you are under keto diet.

Key Ingredients

First, we want the ingredients to be competitive. This means that they need to be varied enough for a good balance of nutritional values to be delivered. Our winning pick, keto bars!, do this. They give you everything you need to stay in a healthy state of ketosis.

  • Stevia
  • Non GMO Erythritol
  • MCT Oil Powder
  • Grass Fed Collagen

Multiple Great Flavors

Second, we’re looking at how nice the products are to actually consume. Keto bars should be something of a treat and will often feature in people's diets on a regular basis. Therefore, they need to be good to eat. We want to know how nice they are and what their flavors are like.

A horrible tasting, chalky keto bar filled with lumpy fat deposits will not fit the bill. We have discarded any that fit this description!

Everything on the following list is great tasting. They have nice textures, to a greater or lesser degree, and are both easy and pleasant to eat. They will all be the treat you want them to be on your ketogenic diet.

Some of the flavors are:

  • Chocolate Variety
  • Blueberry Muffin
  • Cookies and Cream
  • Almond Butter
  • Lemon Poppyseed
  • Salted Caramel

High Quality Fat

Finally, they will all allow you to eat something nice and take in some good quality fat without breaking ketosis.

The following all have few enough grams of carbohydrates in their formulas to make them viable for your keto diet.

For instance, our top pick, Keto Bars have only 3 grams of carbs per serving. Given that you need to stay within a 50 gram daily limit, this is perfect.

This is fairly demonstrative as all of the offerings on this list will stay well within reasonable carbohydrate bounds, giving you fats and proteins above all else.

Final Verdict

Keto Bars!

This is due to a few things. There were always going to be a few important factors going into picking a winner.

Top of this list is consumer feedback. You need to know your audience and deliver something they are willing to part with their hard-earned cash for. Consumers actually have to live with the products they buy, after all: it has to suit them and their lifestyle.

Everything on our list was well ranked online with plenty of four and five star reviews. Public feedback has been consistently strong with many repeat buyers and many people loving the seven products on our list.

We have also given our expert opinions on these products. Feedback from health and fitness professionals is key in determining whether or not a product is any good. If those in the know rate a product highly, it should be a good product, after all.

We have tried and tested all of the above and found them to be great. We have scrutinized product listings and formulas, looking at the macro breakdowns, and their suitability for the ketogenic diet. Each brings something to the table; each will serve you well in one capacity or another.