Soy protein isolate is a naturally vegetal protein with a high biological value. Soy protein isolate is extracted from soy beans. A typical soy protein isolate is 100% vegetal and consists for 85%-90% out of protein. Mainly athletes, vegetarians, vegans and people who are on a diet use soy protein isolate as addition to their normal diet.
People who quickly get pimples and impure skin from whey proteins often switch to soy protein.
We use soy protein isolate in our Shake2Day Light and Regular breakfast shakes.