Black bean is the black seed of soybean, a leguminous plant. Black soybean protein content is 36%, easy to digest, which is of great significance to meet the human needs for protein; fat content is 16%, mainly containing unsaturated fatty acids, with absorption rate as high as 95%. In addition to meeting the human needs for fat, black soybean also has the effect of reducing blood cholesterol; black soybean contains rich vitamins, melanin and lecithin and other substances, B vitamins and vitamin E content is very high. High. Black soybean has the function of nutrition and health care.