29+ Natural Sources Of Vitamin E For Horses US. Green grass is a great source of the natural form of vitamin e is in an rrr form. Vitamin e is a collective name for a group of eight naturally occurring compounds that all have distinctive antioxidant activity.
Your horse does not make vitamin e.
Most horse owners and trainers nowadays give vitamins and minerals to horses as part of their daily programme, writes herbalist robert mcdowell. A vitamin is an organic (contains carbon atoms) compound that's essential for normal growth and metabolism where it comes from: Let us consider some of the natural sources of vitamins and minerals one at a time. The horse sources natural vitamin e from pasture and green feed.