Head-to-head comparison updated for 2026. See which protein product comes out on top.
| Attribute | ||
|---|---|---|
| Brand | MyProtein | NOW Sports |
| Protein / serving | 21g | 25gBest |
| Calories / serving | 103Best | 110 |
| Fat / serving | 1.9g | 0.5gBest |
| Carbs / serving | 1gBest | 1g |
| Sugar / serving | 1g | 0gBest |
| Price / serving | $0.45Best | $0.83 |
| Price / gram protein | $0.0214Best | $0.0333 |
| Overall score | 78/100 | 88/100Best |
| Value score | 95/100Best | 85/100 |
| Purity score | 78/100 | 98/100Best |
| Protein source | Whey Concentrate | Whey Isolate |
| Sweetener | sucralose | none |
| Certifications | None | Informed Sport, GMP Certified, Non-GMO |
| Dietary tags | Gluten-Free | Gluten-Free, Soy-Free |
| Third-party tested | No | Yes |
| Buy on Amazon | Buy on Amazon |
MyProtein Impact Whey Protein is the go-to choice for anyone seeking maximum protein value without breaking the bank. With 100 servings per 5.5 lb bag at just $0.45 per serving, it delivers the lowest cost per gram of protein among major brands. Each 25g scoop provides 21g of protein with only 103 calories, giving it an impressive 84% protein-by-weight ratio for a concentrate.
NOW Sports Whey Protein Isolate combines two things that rarely go together: Informed Sport certification and budget-friendly pricing. At $64.99 for 78 servings, it delivers 25g of protein per scoop at just $0.033 per gram of protein — an exceptional value for a sport-certified product. NOW Foods has been a trusted supplement manufacturer since 1968, bringing over five decades of quality assurance to every batch.
NOW Sports Whey Protein Isolate takes the lead with an overall score of 88 vs 78. For value, MyProtein Impact Whey Protein wins with a 95/100 value score.
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Last updated: March 2026
