Rice bran contains 20 percent fat and naturally high levels of Vitamin E and iron. Feed one to two pounds per day for optimum weight gain and the side benefit of improved coat condition. Thin horses often do not get enough good fiber in their diets. Pasture and hay quality, and sometimes quantity, is something the boarder has little control over. One way to improve the feeding situation is through fiber supplements.
Overweight horses can be as much of a concern as underweight ones.
Grain rations are limited in vitamin and mineral fortification. Five to eight pounds of a ration are required to balance the vitamin and mineral requirements. For overweight horses, feeding that much grain is not practical. Feed a supplement that provides the additional requirements in one package, or a specialty diet feed such as Triple Crown Lite. Be careful in mixing supplements that provide only a portion of what you need.