Soy protein isolate is the soy protein with the highest content of protein. It is made from defatted soy meal by removing most of the fats and carbohydrates, yielding a product with 90 percent protein. Therefore, soy protein isolate has a very neutral flavour compared to other soy products. Because most of the carbohydrates are removed, the intake of soy protein isolate does not cause flatulence. Pure soy protein isolate is difficult to find in stores and is mainly used by the food industry and less by consumers. Maybe you can find it in health stores or in the pharmacy section of the supermarket. It is mainly found combined with other food ingredients; for example, soy protein shake powder is a mixture of soy protein isolate with flavours, minerals and vitamins.
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