Protein is essential for building muscle, supporting recovery, and keeping you full throughout the day. Costco has become a go-to destination for stocking up on high-protein snacks, shakes, and supplements at unbeatable prices. From plant-based shakes to whey powders and kid-friendly protein options, the warehouse has something for everyone. Here are 14 high-protein products available at Costco, each offering quality nutrition and bulk savings.
1. RXBar Protein Bars – $21.99/20-count
RXBars are made with simple, whole ingredients like egg whites, dates, and nuts. They’re chewy, flavorful, and free from artificial additives—perfect as a clean grab-and-go snack.
Nutritional Facts
- Calories 210
- Fat 9g
- Carbs 22g
- Sodium 190mg
- Dietary Fiber 5g
- Sugar 13g
- Protein 12g
Ingredients
Dates, egg whites, almonds, cashews, cocoa, natural flavors.
Preparation Instructions
Ready to eat straight from the wrapper.
2. Built Puff Protein Bars $29.99/18-count
Built Puff Bars are a unique take on protein snacks, featuring a marshmallow-like center covered in chocolate. They’re indulgent yet packed with protein for a guilt-free treat.
Nutritional Facts
- Calories 160
- Fat 2.5g
- Carbs 14g
- Sodium 140mg
- Dietary Fiber 6g
- Sugar 6g
- Protein 17g
Ingredients
Whey protein isolate, gelatin, cocoa butter, natural flavors, stevia.
Preparation Instructions
Unwrap and enjoy anytime as a snack.
3. Glucerna Original Homemade Vanilla Shakes – $25.99/24-pack
Designed for people managing blood sugar, Glucerna shakes provide slow-release carbs alongside protein to help keep energy steady throughout the day.
Nutritional Facts
- Calories 180
- Fat 9g
- Carbs 16g
- Sodium 200mg
- Dietary Fiber 4g
- Sugar 4g
- Protein 10g
Ingredients
Water, milk protein concentrate, sunflower oil, vitamins, minerals, flavors.
Preparation Instructions
Chill and drink; shake well before opening.
4. Kirkland Signature Creamy Chocolate Whey Protein – $39.99/6 lb
Costco’s in-house whey protein is a budget-friendly option for fitness enthusiasts. The creamy chocolate flavor blends easily for shakes and smoothies.
Nutritional Facts
- Calories 140
- Fat 2.5g
- Carbs 8g
- Sodium 130mg
- Dietary Fiber 1g
- Sugar 2g
- Protein 24g
Ingredients
Whey protein concentrate, cocoa, natural and artificial flavors, lecithin.
Preparation Instructions
Mix one scoop with 8–10 oz of water or milk.
5. TruBars – $22.99/12-count
TruBars are plant-based protein bars that come in fun dessert-inspired flavors like Chocolate Chip Cookie Dough. They’re soft, chewy, and vegan-friendly.
Nutritional Facts
- Calories 190
- Fat 8g
- Carbs 21g
- Sodium 160mg
- Dietary Fiber 6g
- Sugar 8g
- Protein 12g
Ingredients
Brown rice protein, almond butter, tapioca fiber, pea protein, cocoa.
Preparation Instructions
Enjoy straight out of the pack or with coffee.
6. Muscle Milk Chocolate Protein Shakes – $24.99/18-pack
Muscle Milk’s ready-to-drink shakes are great for post-workout recovery or a quick protein boost on busy days.
Nutritional Facts
- Calories 160
- Fat 3g
- Carbs 9g
- Sodium 240mg
- Dietary Fiber 4g
- Sugar 1g
- Protein 25g
Ingredients
Water, milk protein isolate, calcium caseinate, cocoa, vitamins, minerals.
Preparation Instructions
Best served chilled; shake well before drinking.
7. Optimum Nutrition Gold Standard 100% Whey (Vanilla Ice Cream Flavor) – $62.99/5 lb
One of the most popular whey proteins, Optimum Nutrition offers a smooth blend of whey isolate and concentrate with a classic vanilla flavor.
Nutritional Facts
- Calories 120
- Fat 1.5g
- Carbs 3g
- Sodium 100mg
- Dietary Fiber 0g
- Sugar 1g
- Protein 24g
Ingredients
Whey protein isolate, whey concentrate, natural flavors, lecithin, enzymes.
Preparation Instructions
Mix one scoop with 6–8 oz water or milk.
8. Premier Protein Caramel Shakes – $29.99/18-pack
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A fan-favorite at Costco, Premier Protein’s Caramel Shake is delicious and packed with 30 grams of protein per serving.
Nutritional Facts
- Calories 160
- Fat 3g
- Carbs 5g
- Sodium 200mg
- Dietary Fiber 1g
- Sugar 1g
- Protein 30g
Ingredients
Water, milk protein concentrate, cocoa powder, sucralose, vitamins, minerals.
Preparation Instructions
Drink chilled; shake before opening.
9. PediaSure Grow & Gain Vanilla Shakes – $29.99/24-pack
PediaSure is designed for kids who need extra nutrition, offering protein plus vitamins and minerals for growth and development.
Nutritional Facts
- Calories 240
- Fat 9g
- Carbs 33g
- Sodium 90mg
- Dietary Fiber 1g
- Sugar 9g
- Protein 7g
Ingredients
Milk protein concentrate, vegetable oils, sugar, vitamins, minerals.
Preparation Instructions
Serve chilled or at room temperature; shake before opening.
10. Orgain Creamy Chocolate Plant Protein Shakes – $24.99/18-pack
Orgain offers a vegan-friendly, plant-based shake with clean ingredients and smooth chocolate flavor.
Nutritional Facts
- Calories 150
- Fat 4g
- Carbs 15g
- Sodium 180mg
- Dietary Fiber 2g
- Sugar 1g
- Protein 20g
Ingredients
Pea protein, brown rice protein, cocoa, sunflower oil, natural flavors.
Preparation Instructions
Chill before drinking; shake well.
11. Ascent Native Whey Protein Blend (Vanilla Bean) – $44.99/4 lb
Ascent uses native whey, the least processed form of whey, for a clean-tasting protein with no artificial ingredients.
Nutritional Facts
- Calories 120
- Fat 1g
- Carbs 4g
- Sodium 150mg
- Dietary Fiber 0g
- Sugar 2g
- Protein 25g
Ingredients
Native whey protein isolate, whey protein concentrate, vanilla, stevia.
Preparation Instructions
Mix one scoop with 8–10 oz water or milk.
12. Chef Robert Irvine’s FitCrunch Bars – $19.99/18-count
Created by celebrity chef Robert Irvine, FitCrunch bars taste like candy bars but pack serious protein.
Nutritional Facts
- Calories 380
- Fat 16g
- Carbs 27g
- Sodium 300mg
- Dietary Fiber 2g
- Sugar 6g
- Protein 30g
Ingredients
Whey protein isolate, soy protein, cocoa butter, peanuts, palm kernel oil.
Preparation Instructions
Eat as a meal replacement or snack.
13. Fairlife Chocolate Nutrition Shakes – $22.99/12-pack
Fairlife’s ultra-filtered shakes provide high protein with fewer sugars, making them a great everyday option.
Nutritional Facts
- Calories 150
- Fat 2.5g
- Carbs 8g
- Sodium 240mg
- Dietary Fiber 1g
- Sugar 2g
- Protein 30g
Ingredients
Filtered low-fat milk, cocoa, natural flavors, lactase enzyme.
Preparation Instructions
Drink chilled; shake before use.
14. Nurri Ultra-Filtered Vanilla Milkshakes – $24.99/12-pack
Nurri shakes are ultra-filtered to deliver a creamy texture and a nutrient-dense profile with extra protein.
Nutritional Facts
- Calories 160
- Fat 4g
- Carbs 6g
- Sodium 180mg
- Dietary Fiber 1g
- Sugar 3g
- Protein 26g
Ingredients
Ultra-filtered milk, natural vanilla flavor, monk fruit sweetener.
Preparation Instructions
Best served chilled; shake well before opening.
Final Thoughts
Costco makes it easy to stock up on high-protein essentials, whether you’re looking for shakes, powders, or snack bars. With options ranging from clean-label RXBars to indulgent FitCrunch Bars and versatile whey protein powders, there’s something for every lifestyle and dietary preference. Many of these items are cheaper per serving than at regular grocery stores, making Costco a smart choice for fueling your health and fitness goals. Whether you’re meal prepping, managing blood sugar, or just need a quick protein boost, these 14 picks prove that Costco is a protein lover’s paradise.
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