Head-to-head comparison updated for 2026. See which protein product comes out on top.
| Attribute | ||
|---|---|---|
| Brand | Optimum Nutrition | Orgain |
| Protein / serving | 24gBest | 21g |
| Calories / serving | 120Best | 150 |
| Fat / serving | 1.5gBest | 4g |
| Carbs / serving | 3gBest | 15g |
| Sugar / serving | 1g | 0gBest |
| Price / serving | $0.86Best | $1.11 |
| Price / gram protein | $0.0360Best | $0.0529 |
| Overall score | 76/100Best | 73/100 |
| Value score | 78/100Best | 68/100 |
| Purity score | 73/100 | 90/100Best |
| Protein source | Whey Blend | Plant Blend |
| Sweetener | sucralose | erythritol |
| Certifications | Informed Sport | USDA Organic, Non-GMO, GMP Certified |
| Dietary tags | Gluten-Free | Vegan, Gluten-Free, Dairy-Free, Soy-Free |
| Third-party tested | Yes | No |
| Buy on Amazon | Buy on Amazon |
Optimum Nutrition Gold Standard 100% Whey is the best-selling whey protein powder in the world, and for good reason. With 24g of protein per scoop from a tri-blend of whey isolate, concentrate, and peptides, it delivers a well-rounded amino acid profile including 5.5g of BCAAs and 11g of EAAs per serving. The Double Rich Chocolate flavor is consistently praised as one of the best-tasting protein powders on the market.
Orgain Organic Plant-Based Protein was created by Dr. Andrew Abraham, a physician and cancer survivor who wanted clean, accessible nutrition for everyone. The USDA Organic formula combines pea protein, brown rice protein, and chia seed to deliver 21g of complete plant protein per serving. At $29.99 for 27 servings, it is one of the most affordable organic plant proteins on the market.
Optimum Nutrition Gold Standard 100% Whey edges ahead with an overall score of 76 vs 73. For value, Optimum Nutrition Gold Standard 100% Whey wins with a 78/100 value score.
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Last updated: March 2026
