Soy milk produced by processing soybean is known as a low-calorie, low-cholesterol health food that is also rich in soybean-derived nutrients. There are also known processed soy milk foods (for example, soy milk fermentation products prepared by fermenting soy milk with แบคทีเรียกรดแลคติก). งานเขียนสิทธิบัตร 1 discloses yogurt prepared by mixing แบคทีเรียกรดแลคติก with soy milk.