If you’re on a health or fitness journey, you know how expensive it can be to meal prep and purchase snacks that give you enough energy without many calories or added ingredients. Protein bars are just one of the many necessities to have on hand for those busy days when you can’t be bothered to sit down for a meal but still want to stay on track to your goals. 

Let this retailer help you achieve your goals by purchasing some of their best protein bars at Costco in bulk. Not only are they delicious, but they’re packed with amazing nutrients and protein without a lot of calories. If you need the best recommendations, keep reading to find the bar for you. 

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Related: Best Things to Buy at Costco for a Bargain

10. Nature Valley Protein Bars

Nature Valley Best protein bars at Costco, Credit: Costco
Credit: Costco

Nature Valley is a popular name when it comes to granola bars, but their protein bars are just as good. Their Peanut Butter Dark Chocolate protein bar is rich and decadent but only has 190 calories in each bar.

Packed with 10g of protein as well as 6g of fiber, this is the perfect protein bar to have stored in your pantry or even at the office for a quick pick-me-up. For only $18.99, you can stock up on 30 bars, an amazing price compared to other retailers like Amazon which prices this many bars at around $30.

One bar is 190 calories with 10g of protein, 6g of fiber, 12g of fat, 7g of sugar, and 160mg of sodium.

9. Power Crunch Protein Bars

Power Crunch Best protein bars at Costco, Credit: Costco
Credit: Costco

For those who need more variety, Power Crunch has you covered. While Nature Valley only has one flavor available, Costco has four flavors of Power Crunch, all with the same amazing nutritional value. 

Each bar is 220 calories with 13g of protein and 1g of fiber. The flavors vary with Strawberry Creme, Triple Chocolate, French Vanilla, and Peanut Butter CremeA box of 12 is $17.99, the perfect amount to mix and match your favorite flavors so you’re never bored. Compared to popular retailers like Walmart, which has a box of 5 for $7, this is a great price. 

No matter the flavor, one bar is 220 calories with 13g of protein, 1g of fiber, 14g of fat, 5g of sugar, and 120mg of sodium.

8. Think! Protein Bars

Think Best protein bars at Costco, Credit: Costco
Credit: Costco

Variety packs are another great way to never tire of the same flavors, and Think! protein bars are one of the best ones to grab at Costco. Each bar is packed with 20g of protein and 1g of fiber, all with only 230 calories each.

You have the option to grab either Creamy Peanut Butter or Brownie Crunch, two rich flavors that will satiate any craving. With 9 of each flavor, you can grab a box for only $24.49, a great price compared to BJs which sells a pack of 15 for $22. 

One bar has 230 calories, 20g of protein, 1g of fiber, 8g of fat, 0g of sugar, and 190mg of sodium.

7. Kirkland Signature Protein Bars

Kirkland Signature Best protein bars at Costco, Credit: Costco
Credit: Costco

Even though these are Costco’s own brand, they are still a must-try if you’re on a fitness journey. At 190 calories for one bar, 21g of protein, and 10g of fiber, this is one of the best Costco protein bars that you can grab at the wholesaler. They also come in a variety of flavors, from Chocolate Brownie, Peanut Butter Chunk, and Cookie Dough.

If you can’t decide, try out their variety pack that comes with Brownie and Cookie Dough. A box of 20 protein bars will cost $23.99, but since it’s Kirkland Signature, you can not purchase these anywhere else. 

Either flavor is 230 calories per bar with 20g of protein, 1g of fiber, 9g of fat, 0g of sugar, and 260mg of sodium.

Check Out: Best Costco Snacks for a Pantry Stock

6. Pure Protein Bars

Pure Protein Best protein bars at Costco, Credit: Costco
Credit: Costco

Pure Protein is just what it says it is, pure fuel. If you want a hearty protein bar that helps you push through the day with a variety of flavors, this is for you. The variety pack comes in three different flavors, Chocolate Peanut Butter, Chocolate Deluxe, and Chewy Chocolate Chip.

Between 180-200 calories per bar, these have around 20g of protein and 2g of fiber. You can get a 23-count box for $27.99 at Costco, cheaper than retailers like Amazon which has the same box priced at $35. 

One bar is 200 calories with 10g of protein, 1g of fiber, 7g of fat, 2g of sugar, and 200mg of sodium.

5. Ready Clean Protein Bars

Ready Clean Best protein bars at Costco, Credit: Costco
Credit: Costco

Ready Clean is one of the best protein bars at Costco and is gluten-free. They’re delicious and packed with protein so you can stay full for hours. Each bar has 200 calories, 15g of protein, and 7g of fiber. Thanks to Costco, you can get a variety of choices as each box comes with 12 Chocolate Peanut Butter and 12 Dark Chocolate with Sea Salt. 

Stock up on this 2-pack 24-count protein bar for only $54.99, a great option if you hate purchasing bars each week. If you want close to 48 bars anywhere else, like Walmart, you’re looking at spending closer to $70.

Both flavors are 200 calories per bar with 15g of protein, 7g of fiber, 7g of fat, 10g of sugar, and 160mg of sodium.

4. Cliff Builder’s Protein Bars

Cliff Builders Best protein bars at Costco, Credit: Costco
Credit: Costco

Cliff bars are one of the most popular and best protein bars at Costco. If you’ve never had a protein bar and need your first recommendation, this would be it. These rich and hearty bars aren’t grainy like some of the other protein bars and will keep you full for hours. 

But instead of getting the normal Cliff Bars, you need to opt for the Cliff Builder’s protein bars, which are packed with way more protein. At 280 calories per bar, you’ll get 20g of protein and 3g of protein.  Costco has a variety pack of 9 Chocolate Peanut Butter and 9 Chocolate Mint for $26.99, an 18-pack that would normally be closer to $34

At 290 calories, this bar has 20g of protein, 3g of fiber, 9g of fat, 17g of sugar, and 200mg of sodium.

3. Simply Protein Bars

Simply protein, Best protein bars at Costco, Credit: Costco
Credit: Costco

Not a fan of the chewy protein bars? Pick up Simply Protein Crispy Bars for a change of flavor and texture. Each bar only has 150 calories but is packed with 15g of protein and 7g of fiber, a great option if you’re on a calorie deficit.

Costco carries a variety pack that comes with 15 total bars of Peanut Butter Chocolate, Lemon Coconut, and Dark Chocolate Sea Salt for $22.99. You can find the same variety pack at other retailers like Walmart for $28. 

Each flavor is 150 calories per bar with 15g of protein, 7g of fiber, 4.5g of fat, 1g of sugar, and 280mg of sodium.

2. Fit Crunch Protein Bars

Fit Crunch Best protein bars at Costco, Credit: Costco
Credit: Costco

One of the best protein bars on the market right now is Robert Irvine’s Fit Crunch bars. The celebrity chef has hosted a variety of Food Network programs and has an immense passion for his career and fitness, which makes these bars a must for anyone on a fitness journey. 

One bar has 190 calories with 16g of protein and 1g of fiber. Between his Chocolate Peanut Butter and Mint Chocolate Chip bars, you’ll have a variety of flavors packed with amazing nutrients. You can purchase an 18-count box for $22.99 at Costco, which is a great price compared to other retailers like Target, which has a 9-count for $21. 

Each flavor is similar with 190 calories and 16g of protein, 1g of fiber, 8g of fat, 3g of sugar, and 200mg of sodium.

1. RX Bars

RX Bar Best protein bars at Costco, Credit: Costco
Credit: Costco

Coming in first at the best protein bars at Costco is the RX Bars, one of the most highly recommended and nutritious protein bars. RX Bars are packed with protein from egg whites and are bound with dates that back in a lot of fiber, and then off a crunchy nutty texture to satisfy cravings.

One bar is 210 calories with 12g of protein and 5g of fiber. Costco’s variety pack includes 7 Chocolate Sea Salt and 7 Blueberry bars for only $19.99. Most RX variety packs only hold 10 protein bars and cost closer to $18

One bar has 210 calories, 12g of protein, 5g of fiber, 9g of fat, 13g of sugar, and 260mg of sodium.

Read More: What Is the Best Costco Frozen Food for Families?

Protein bars aren’t the only thing that Costco has to offer at low rates. Keep checking our page for all the information on how to save at Costco to become a savvy shopper. From hidden .97 deals to monthly coupon books, Costco97 is here to help you make the most of your membership. Check out our blog here as well for the best items to get at the lowest prices. 

Have you tried some of these bars? Let us know which one is your favorite below!