Amaranth leaves are storehouse for many phytonutrients, antioxidants, minerals and vitamins. Fresh amaranth leaves are one of the richest sources of vitamin-C.  Amaranth greens perhaps have the highest concentrations of vitamin-K of all the edible green-leafy vegetables. its leaves carry more potassium than that of in the spinach. Potassium is an important component of the cell and body fluids that helps regulate heart rate and blood pressure.