Kirkland SignatureProtein Bar

Chocolate Brownie, protein bar

Bench Facts

Serving size1 bar (60 g)

Per serving

Protein21 g

Cost$1.32

MeasuresRank in bars

Protein concentration44%#5 of 30

Cost per gram of protein6.3¢#1 of 30

Taste4.12#28 of 30

Rated 4.1 out of 5 by 1,078 Costco customers; blended with 100 average ratings, that’s a taste score of 4.12.

20 servings per 20-count variety box (10 Chocolate Brownie + 10 Chocolate Chip Cookie Dough)

Serving size1 bar (60 g)

Amount per serving

Calories190

Total Fat6 g

Total Carbohydrate22 g

Total Sugars2 g

Protein21 g

As labeled for Chocolate Brownie. Source: costco.com

Price: $26.49 for 20-count variety box (10 Chocolate Brownie + 10 Chocolate Chip Cookie Dough) (20 servings) at Costco, Oct 20, 2026.
Rating: 4.1 out of 5 from 1,078 ratings at Costco, Oct 20, 2026.
Nutrition: costco.com
Research notes: Research notes
Sold at Costco as a 20-count variety box; nutrition is for the Chocolate Brownie bar (the Chocolate Chip Cookie Dough bar is also 21 g protein / 190 kcal, with 7 g fat). Nutrition read from the label image on costco.com. Price is the costco.com online price (shown as out of stock online on the observed date). Rating is Costco's; Amazon listings are third-party resellers.

Against the typical bar, the best bar on each measure, and chicken breast.

Share of calories from protein. Higher is better.

What one gram of protein costs at regular retail price. Lower is better.

Shorter is cheaper.

Customer rating out of 5, adjusted for review count. Higher is better. Axis starts above zero.