NOW Foods Soy Protein Isolate is a non-GMO vegetable source of high quality complete protein that is very low in fat and carbohydrates, and features an excellent amino acid profile. Soy products, including Soy Protein, are a natural source of phytoestrogens, which may positively support healthy natural estrogen levels in women. Soy Protein also delivers beneficial proteins such as Genistein and Daidzein, which have been shown to support good health through various biochemical processes.