Soy Protein Powder
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What it is
Soy protein powder is made from soybeans, a legume native to East Asia. Soybeans are processed to remove most of the fat and carbohydrates, leaving behind a concentrated source of protein. This powder can be made from whole soybeans, soy flour, or soy protein isolates.
Why it's used
Manufacturers add soy protein powder to foods to boost protein content. It can also act as an emulsifier, helping to blend ingredients like oil and water. It is commonly found in protein bars, shakes, baked goods, and meat alternatives.
Health notes
Soy protein is Generally Recognized As Safe (GRAS) by the FDA for use in food. It is a complete protein, meaning it contains all nine essential amino acids. Some studies suggest soy protein may have a neutral to beneficial effect on heart health, but research is ongoing and evidence is mixed. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated soy protein.
Allergen info
Soy is one of the 9 FDA major allergens. Soy protein powder is derived from soy.