It frequently used as garnish in all things Asian, from soups to salads, poke bowls to curry. The mineral content of shallots is known to be typically higher than that of onions, possibly including iron, copper and potassium. Iron and copper can help boost the circulation in body by stimulating the production of red blood cell. Maintain blood sugar level, 2 of the photochemical compound found in shallots, allium and allyl disulfide, may have anti diabetic properties.