Soy Protein Isolated

Soy protein isolate is a highly purified form of soy protein, with most of the fat and carbohydrates removed. It is made from soybeans, which are first dehulled and then processed to extract the protein. The resulting protein concentrate is then further processed to isolate the protein, typically using water or alcohol extraction.

Manufacturers add soy protein isolate primarily as a source of protein and to improve texture in foods. It can help bind ingredients, create a smoother mouthfeel, and increase the protein content of products. It is commonly found in protein bars, shakes, meat alternatives, baked goods, and some dairy products.

Soy protein isolate is generally recognized as safe (GRAS) by the FDA when used as a food ingredient. It is a complete protein, meaning it contains all nine essential amino acids. Regulatory bodies like JECFA and EFSA have evaluated soy protein and its components. While soy is a common allergen, isolated soy protein is widely consumed and considered safe for most people when eaten in typical amounts found in food.