Kirkland Protein Bars Review – Best Costco Protein Bar?

Kirkland protein bars, also known as Costco protein bars, offer a solid combination of taste and easy to eat. With a good amount of 20g protein per serving, I found that its chocolate cookie flavor is the best among all four flavors. 

Kirkland Protein Bars (Quick Review)


Highlights (Per Serving)


Buy Now

kirkland protein bar review
  • 21g Protein

  • Tasty

  • 190 Kcal

  • All Natural Ingredients

  • 22g Carbs

  • Gluten-Free

kirkland signature protein bar nutrition facts
  • 21g Protein

  • 180kcal

  • Tasty

  • Easy to Chew

  • 23g Carbs

  • Gluten-Free

Many proteins bar excellent in taste, but they suck at the eating experience as they tend to stick to your teeth and feel gluey. There are rarely any protein bars that offer the best flavors and eating experience in a protein bar. 

I found that Kirkland from Costco is one brand that offers both qualities in a protein bar. 

Kirkland protein bars are available in four different flavors at Costco stores; I loved how good its chocolate chip cookie flavors are. It is excellent in taste and easy to eat, chew and digest as well. 

Also, Read. 14 Best Costco Protein Powder Review

Protein bars are a go-to snack for a good amount of protein and moderate carbs, and some essential vitamins and minerals. 

In this Kirkland Costco protein bar review, we will check four different aspects; Protein content, overall macro content, taste, and ease of chew/ eat. 

Kirkland Protein Bars Review (Detailed Review)

Kirkland Signature Chocolate Chip Cookie Dough

kirkland protein bar review
Kirkland Signature Chocalate Chip Cookie Bars

Overall Rating: 9/10 

These gluten-free chocolate chip cookie flavors taste great (like a real chocolate cookie) and easy to chew and eat as well. You get a solid 21 grams of protein with one protein bar. 

Kirkland Costco Chocolate Chip Cookie Ingredients 

  • Milk Protein Isolate
  • Whey protein isolate
  • Soluble corn fiber 
  • Cashew Butter
  • Cocoa Butter
  • Chocolate
  • Stevia
  • Natural Flavors

Kirkland Costco Protein Bar Nutrition Facts

One serving Kirkland chocolate brownie protein bar has

  • Calories = 190
  • Protein = 21g
  • Carbs = 22g
  • Sugar = 2g
  • Fat = 7g

21g of protein at 190 is a little high if you follow a calorie deficit diet, but if you can consume these many carbs and calories for a snack, This protein bar is a good option for you.

However, 7g of fat and 22g of carbs can boost your blood sugar too much and affect your fat loss goal. 

A high amount of fat slows down the absorption of protein and other vitamins & minerals. 

Kirkland Costco Protein Bar Taste Review

Kirkland chocolate chip cookie flavor from Costco is an excellent protein bar brand with great chewing, and it’s easy to eat. 

You can chew every bite, and it doesn’t stick to your teethes. The texture is just like an original chocolate chip cookie. 

Buy Chocalate Chip Cookie Protein Bar

Kirkland Chocolate Cookie Protein Bar Pros & Cons

Kirkland Chocolate Cookie Pros

  • Tasty
  • Easy to Eat
  • 21g Protein
  • Natural Protein Ingredients
  • Gluten-Free
  • Natural Flavors 
  • Descent Price 

Kirkland Chocolate Cookie Cons

  • Carbs (22g per serving)
  • Fat (7g per protein bar)

Kirkland Chocolate Peanut Butter Chunk Protein Bars

kirkland signature protein bar nutrition facts
Kirkland Signature Chocalate Peanut Butter Bar

Overall Rating: 8.5/10

Chocolate peanut butter is the softest Kirkland protein bar so far. With a delicious peanut butterish taste and chocolaty texture, these protein bars are among the best protein bars at Costco

Kirkland Costco Peanut Butter Chunk Ingredients 

  • Protein Blend (Milk Protein Isolate, Whey protein isolate)
  • Soluble Corn Fiber
  • Peanut Butter
  • Cocoa powder
  • Chocolate Powder
  • Sunflower Lecithin 
  • Stevia

Kirkland Costco Peanut Butter Chunk Nutrition Facts

One serving Kirkland chocolate brownie protein bar has

  • Calories = 180
  • Protein = 23g
  • Carbs = 22g
  • Sugar = 2g
  • Fat = 6g

Signature Peanut Butter Chunk Pros & Cons


  • 23g of Protein
  • Tasty
  • Smooth/Soft Texture
  • Best Costco Protein Bar
  • Natural Ingredients
  • No Additives 
  • Original Taste


  • Not Particularly Low in Carbs
  • 7g of Fat

Chocolate Chip Cookie Vs Cookies and Cream – Which one Tastes better?

Chocolate chip cookie flavor is better than the cookies and cream. It is easy to chew, and it doesn’t stick to your teeth. 

Cookies & cream are hard to get off the wrapper (sticky protein bar); it’s hard to chew and tastes a lot worse than chocolate chip cookie flavor. On the other hand, it has most of the net carb as well. 

Protein bars like Kirkland and other brands offer a wide range of flavors in protein bars; some are good in taste but terrible as eating, and some taste bad while they are easy to eat.

Kirkland Signature Costco Protein Bar Video Testimonial

On Easy Protein Guide, I have been reviewing all big brand protein powders available in the market. Kirkland protein bars review from Costco is the first protein bar review and analysis on this blog. 

Kirkland is probably the most sold, famous protein snack brand. Hundreds of thousands of people buy these protein bars for daily protein nourishment.

Kirkland Protein Bar: FAQs

Q. Are Kirkland protein bars healthy? 

Yes, Costco protein bars or Kirkland bars uses natural ingredients and good protein sources for the raw ingredients. It provides you a good amount of protein, carbs, and fats in a single serving.
One serving has 180 to 200 calories, so if your daily macros allow, you can use these protein bars as a snack in your daily meals.

Q. Where to Buy Kirkland Protein Bars?

If you want to buy in a physical store, you can buy these at your nearest Costco store. Kirkland is a widely popular Costco protein bar. More than 3600 people rated this a five star on the Costco website.
Or you can buy these protein bars on Amazon, where you can get some exciting deals and discounts as well.

Q. Are Kirkland Protein Bars Good?

Kirkland Costco protein bars are available in four different flavors.
Out of these four flavors, the chocolate chip cookie and the peanut butter chunk are the two that stand out, and they protein-rich as well.

Q. Did Costco Stop Selling Kirkland Protein Bars?

No, It’s still available. It’s one of the best-selling Costco protein bars. You can check on the Costco website; You can buy a pack of 2 for $40.

Q. When to Eat Protein Bar?

You can eat anytime you want.
Usually, a protein bar is something that people on constant travel or a busy schedule and don’t have enough time to cook; prefer protein bars for a quick and easy source for protein, carbs, and some fats.

Kirkland Costco Protein Bars Review Conclusion

Protein bars can be a good option for a quick protein-rich snack; you use them in moderate quantity. Costco offers many protein bars; the Kirkland protein bar is the one that stands out the most.

We Discussed Kirkland protein bars ingredients, nutritional facts, and overall taste and eating experience. Kirkland is a widely popular protein brand in the US. It’s also the most selling protein bar; it’s also known as Costco Protein bar.

I decided to write this review to provide the essential information and facts to you. If you are looking to buy a protein bar or a first-time protein bar buyer, Kirkland signature protein bars are a good option.

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