This is a super food, which can provide cholesterol-lowering protein and soluble fiber, and its iron content is twice that of other beans. In addition, the contents of vitamin B and folic acid in lentils are also high, and folic acid is very important for women, because folic acid can reduce the rate of fetal malformation. Researchers from the U.S. Department of Agriculture have found that the pigment in this kind of black lentil has antioxidant function, which can prevent heart disease and cancer and resist aging.