After our analysis, we came to the conclusion. Optimum Nutrition 100% Whey Gold Standard wins in this battle and earns 8.6 VSR. Its rival 21st Century Whey Protein receives 7.6 VSR. The rating was affected in the first place by the price, the cost of 25 grams of pure protein of Optimum Nutrition 100% Whey Gold Standard is $ 0.79 as against $ 0.94 of 21st Century Whey Protein. The serving of Optimum Nutrition 100% Whey Gold Standard contains 24 grams protein as against 20 grams in one 21st Century Whey Protein serving. At the same time, a serving of Optimum Nutrition 100% Whey Gold Standard costs $ 0.76, and a serving of 21st Century Whey Protein costs $ 0.75.
The Optimum Nutrition 100% Whey Gold Standard composition contains minerals in an amount of 1 as against 8 in 21st Century Whey Protein.
Optimum Nutrition 100% Whey Gold Standard is available in 23 flavors. 21st Century Whey Protein is produced in 3 flavors.
Optimum Nutrition makes available 7 different sizes of 100% Whey Gold Standard. 21st Century Whey Protein is available in 3 sizes.
We recommend buying Optimum Nutrition 100% Whey Gold Standard.