Soy 80 Protein is a highquality source of protein whose high biological value is comparable with animal protein. And this means is it an excellent source of protein for vegans too The benefits of an isolate in comparison to a concentrate are that the protein content is higher over 90 as dry mass & therefore also contains less fat & fewer carbohydrates. This makes it particularly well suited to preventing the degeneration of muscle mass during a diet & optimising fat burning.