Most of us feed our horses what we believe is the best of the food possible such as grass – alfalfa mix, pure alfalfa, maybe some type of grains or just plain pasture grass. What may be missing are some of the foundational ingredients called amino acids. Amino acids are the building blocks that make up proteins. When certain proteins, or amino acids, are not present or in correct balance, deficiencies in the animal’s health may occur resulting in under performance, sickness, hoof aliments, lack of appetite etc.