Pure Soy Protein Isolate is the perfect option for Vegetarians, Vegans and those that suffer from lactose intolerances. Its a great low fat, high protein source with a moderate rate of digestion so is a great option to use at any time of the day as your protein supplement. Do not fall for the myth that Soy Protein affects the production of estrogen, several studies have been completed surrounding this belief, with no defining results to state there is a difference in estrogen levels between those who do and do not use Soy Protein. Soy Protein Isolate is derived from soy beans, the final product is low in fat and high in protein, along the same levels of protein as a whey or milk protein. Soy beans boast the closest resemblance to meat protein strains, with a reported excellent amino acid profile. Soy Protein Isolate s free of Lactose and Gluten so the perfect alternative for those who do suffer from these allergens. At Bodybuilding Warehouse we pride ourselves on quality. Our Soy Protein Isolate has been produced in-house in our own custom built factory, using ingredients from approved, audited suppliers who meet our strict quality assurance standards, and work within our principles.