There was a time when nutrient-rich grasses were a staple throughout the earth and horses thrived because of it. Today, nothing could be farther from the truth. Depleted soil conditions are the norm, and commercially produced hays are rich in anything but nutrients. Nutrient deficiencies have become your horse’ s worst enemy. There is help, and it comes from a time when there were no grasses. It is the simplest of all forms of life. (Aphanizomenon flos-aquae (blue-green algae)) Wild Grown Klamath Lake "E3Live™FOR HORSES".