Soy proteins have come a long way in terms of taste appeal. If you've tried soy proteins in the past you know that many of them don't taste so hot. Although soy is one of the best vegetarian proteins, and the only one with an FDA-approved heart health claim, it's characteristic taste has always posed a challenge to formulators.Optimum Nutrition's formulators are some of the best in the industry when it comes to taste and flavor. Optimum's 100% Whey Gold Standard is the #1 selling whey protein in the industry largely because it comes in an unbelievable 22 different flavors, all of which are awesome and give users some desperately-needed variety. Optimum's done a great job on all the flavors of their 100% Soy Protein Supplement, too. Sugar-free, fat-free and non-GMO, is the one to get if you like the idea of Soy Protein, but just haven't found one that tastes good.