Protein powder is great for post-workout recovery or just reaching your daily protein requirements. Include it in a shake, smoothie, or even mix it into pancake batter. Whether you’re trying to build muscle, lose weight, or just focus on your overall health, protein powder can help you achieve those goals. 

From whey protein — derived from cows’ milk — to plant-based protein, Costco has a great selection to choose from. These are the best Costco protein powders that you can grab in-store or online. 

Related: 10 Best Protein Bars at Costco

8. MyProtein Clear Whey Isolate

best costco protein powder: my protein whey
Credit: Amazon

One of the best Costco protein powders comes from MyProtein. The whey isolate has 35 servings with 20 grams of protein in each. The sugar-free, 80-calorie protein powder is made with essential amino acids for your recovery. 

This clear whey variety gives it a fruity, lighter taste similar to juice, which is perfect for those who don’t always want creamy protein shakes. With this lemonade flavor, you can enjoy as is, or spruce it up with strawberries, mint leaves, or even brewed tea. 

7. Further Food Grass-Fed Protein Powder

Further Food Protein Powders, Costco
Credit: Costco

Full of chocolatey goodness, Further Food Grass-Fed protein powder is the way to go. It has a premium blend of collagen peptides, mood-boosting reishi mushrooms, and dark chocolate for a decadent flavor. 

Not only is it packed with protein, but it helps support healthy skin, hair, and nails along with bone, joint, and gut health. It works with dairy-free, keto, paleo, and kosher diets. Costco supplies 56 servings of this sugar-free protein powder available online, which offers amazing value. Plus, in each serving, you’ll get 8 grams of protein at only 40 calories. 

Check out: Here’s the Healthiest Food at Costco That Even Dietitians Love

6. Isopure Whey Protein Powder

Isopure Protein Powder, Costco
Credit: Costco

Isopure Whey Protein can be found in-store or online and is a Costco customer favorite thanks to the creamy vanilla flavoring. A Costco container contains around 50 servings and one scoop has 100 calories and a whopping 25 grams of protein. 

This product has zero carbs, fat, and sugar — plus, it’s gluten and lactose-free. Add the powder to pancakes for a hearty breakfast or use it in a smoothie. 

5. Vital Proteins Collagen Peptides 

Vital Proteins, Costco
Credit: Costco

Another fan favorite is Vital Proteins’ Collagen Peptides powder, specifically the unflavored formula, which can be found in-store or online. Enjoy this bovine-hide collagen in coffees, teas, or even oatmeal.

It gives you a boost to support healthy hair, skin, nails, and joints, and is made without gluten or dairy. With these bulk Costco containers, you’ll get 34 scoops at 70 calories and 18 grams of protein. 

Read more: 9 Best Costco Bakery Items in 2024

4. Ascent Whey Protein Blend

Ascent Protein Powder, Costco
Credit: Costco

Ascent is one of the best Costco protein powders among shoppers. Flavor options include vanilla bean, strawberry, and chocolate peanut butter. Ascent is perfect for creamy shakes or smoothies.

One package has around 55 servings, which is larger than regular supplement shops or grocery stores. One scoop offers 130 calories, 1 gram of fiber, and 25 grams of protein. 

3. Orgain Plant-Based Protein Powder

Orgain Protein, Costco
Credit: Costco

The best Costco protein powder goes to Orgain Plant-Based powder. It’s a staple at the wholesaler with several flavors — some being seasonal like the pumpkin spice latte blend, for example. Normally, you have options like vanilla bean, chocolate fudge, peppermint hot cocoa, cafe latte, and even peanut butter cup. 

One container holds 24 servings and a serving size consists of 170 calories, 2 grams of fiber, and 21 grams of protein. Customers love that it’s plant-based with high-quality ingredients and flavoring that is unmatched. It’s perfect to mix with desserts or add to a smoothie. 

2. Optimum Nutrition Gold Standard

Optimum Nutrition Protein Powder, Costco
Credit: Costco

Optimum Nutrition is a familiar name in the protein powder industry and is also one of the best protein powders you can pick up at Costco. Customers highly recommend this product thanks to its quality, flavor, and bulk packaging. 

The Gold Standard whey protein comes in chocolate or vanilla and can be found in-store or online. Each package gets you 80 servings and one scoop provides 24 grams of protein. You can actually add this to your morning coffee, or mix it into your usual shakes or smoothies.

Related: What’s the Best Costco Salad?

1. Kirkland Signature Whey Protein

Kirkland Signature Protein Powder, Costco
Credit: Costco

Tired of your current protein powder? Need something fresh? Then you’re in luck because everyone’s favorite Costco brand has released their very own protein powder! That’s right — for only $47.99, customers can grab a 5.4-pound bag of the Chocolate Whey Protein by Kirkland Signature. Each package comes with 70 servings full of 25 grams of protein.

Kirkland Signature released its protein powder only a few months ago, but customers are already raving about the flavor and quality. One Costco shopper posted on Reddit saying this product tastes like chocolate milk and mixes into water without clumps (a true feat). Even TikTok can’t get enough. TikToker @biettetimmons can’t live without this Costco protein powder masquerading as a dessert. If you need a new protein powder, pick up Kirkland Signature next!

Bonus: Fairlife Protein Shakes

Fairlife Protein Shakes, Costco
Credit: Costco

If protein powder isn’t your thing, but you’d still like to incorporate more protein into your diet, try Fairlife protein drinks, a great grab-and-go option. Made from fresh, Kosher dairy, these drinks pack 30 grams of protein and are super popular among Costco shoppers. In fact, Costcos around the country have trouble keeping them in stock. You can pick up an 18-pack from Costco in-store or online. Flavors include chocolate or vanilla, although chocolate is more common to see in-store.

Read More: Ranking the Best Costco Coffee In-Store and Online

Do you have a favorite protein powder? Do you like these flavor options? Let us know in the comments your thoughts and recommendations! 

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