More than  fifty million years ago, grasses spread over the world and created a major reorganization of the animal world. Those animals that could take advanthge of its nourishing qualities thrived. From the chlorophyll the grasses contained, they were able to build blood, flesh, and bones; they became the most powerful animals on Earth.In the present day, elephants, moose, horses, elk, oxen bulls, and others grow strong and sustain their huge bodies by eating grasses and other herbs. And although humans do not have the ability to break down and digest large quantities of grass fibers, manu medical researchers believe chlorophyll extracts to be an excellent natural treatment for a number of diverse ailments.