
If you enjoy simple ways to boost your protein intake while also having a delicious meal or treat throughout the day, then you need to start grabbing protein powder. Costco is the best place to go to if you want bulk-size, affordable options. But what are the best protein powders at Costco? While the warehouse has several options, these are by far the best choices.
7. Further Food Grass-Fed Protein

Further Foods protein is non-GMO, kosher, grass-fed, keto, and paleo-friendly. Along with that, it features collagen to boost your skin, hair, nails, and gut health. Made with collagen peptide, cocoa powder, and reishi mushrooms, this is one protein powder that will make you feel amazing after each serving. Plus, each serving has 19 grams of protein, a great boost to reach your protein goals.
6. Isopure Whey Protein

Another one of the best protein powders at Costco is Isopure whey protein. The vanilla flavor is a delicious treat to add to your baked goods, milkshakes, or morning coffee, and offers a whopping 25 grams of protein in just one scoop. Along with the protein, you receive 22 essential vitamins and minerals, plus it supports skin and nail health.
5. Ascent Protein Powder

Available in both chocolate and vanilla flavors, Ascent is a big name at Costco when it comes to protein powders. This 100% whey powder offers 25 grams of fast-digesting protein with zero artificial ingredients. The gluten-free protein powder is a favorite amongst shoppers and athletes, and tastes amazing in protein bowls, milkshakes, coffees, or baked goods.
4. Vital Proteins Collagen Peptides

Vital Proteins offers an unflavored option, which is great if you want to sneak it into more recipes, or a chocolate flavor, perfect for coffees or milkshakes. This powder has 20 grams of protein along with collagen peptides to support skin, nail, hair, and joint health. It’s even made dairy, gluten, and soy-free to fit more dietary needs.
3. Kirkland Signature Whey Protein

But of course, one of the best protein powders at Costco goes to their store-named brand, Kirkland Signature. Not only is this a high-quality, affordable bag, with it being over 5 pounds and only costing $54.99, it also offers a whopping 25 grams of protein. While it only comes in a creamy chocolate flavor, it’s the perfect option for those starting on their health journey and want to try out protein powders.
2. Orgain Organic Protein

If you want to ensure you’re getting the cleanest protein powder available at Costco, then grab Orgain’s organic protein. With 21 grams of protein in each serving, this powder also offers amazing probiotics to add 8 grams of fiber, which supports gut health. This is perfect to add to your daily juice or green smoothie, or even yogurt bowls.
1. Optimum Nutrition Gold Standard

By far the best protein powders at Costco go to Optimum Nutrition. Their Gold Standard protein powder is 100% whey and comes in either Extreme Chocolate or Vanilla Ice Cream. With 24 grams of protein and only 2 grams of sugar, this protein powder is the perfect option for clean, healthy protein. It’s also gluten-free to meet dietary restrictions.
