Beans useful because it is rich in copper and zinc, and protein from beans digested by the body very easily. This protein can receive necessary for life amino acids: lysine, tyrosine, tryptophan, arginine, methionine. By the way, arginine is similar to insulin, so the beans needed in diabetes – it reduces the amount of blood sugar. Beans are useful in rheumatism, nephrolithiasis, chronic pancreatitis, ulcers, eczema. The diuretic and antimicrobial action – it is also useful properties of beans.