Does a horse need all the 14 vitamins daily to achieve maximum results ? We believe that every active horse should be supplied with appropriate daily allowances of all fourteen vitamins. The "Normal" diet of hay and oats may contain sufficient energy and protein but the contents of the essential vitamins are often very poor and unbalanced. It is not only the total amount of each vitamin which is important but the balance between them. If even one vitamin is supplied in inadequate quantities a horse cannot achieve its maximum performance potential.