Dymatize Nutrition's ISO-100 derives its name from its protein source, 100% Whey Protein Isolate. Unless you are in the medical profession, you have probably never seen protein like this before. Most companies "claim" they use Whey Protein Isolate, but after one serving of Dymatize ISO-100 you can instantly see, taste & even feel the difference! Dymatize Nutrition's Whey Protein Isolate has been processed to the zenith of perfection, 100% hydrolyzed & instantized & taken through no less than 5 quality controlled steps. Both lactose & fat have been removed from ISO-100, leaving you with nothing but the most easily digested, assimilated & most bio-available source of protein on the market. Dymatize Nutrition know that maximum protein utilization is essential to aiding muscle recovery & maintaining a positive nitrogen balance, which is critical during periods of intense training. There is no higher standard of protein than ISO-100, so feel confident that you will be feeding your muscles to their fullest potential! Check the stats: each serving has an astonishing 24 grams of protein, with "0" Carb & "0" Fat. Look closer. You will see that all this is in a serving size of about 28 grams, making ISO-100 86% protein by weight! Nothing out there matches this formula, nothing even comes close.