If the fiber is making a greater contribution to the horse’s requirements, then less concentrates should be required, which is ideal for any horses that are prone to digestive upsets or over-excitable behaviour. Research suggests that adding live yeast to the feed, when starch was fed, helped to counteract some of the negative effects that usually occur in the hind gut, in response to starchy meals. It does support the inclusion of yeast in performance-horse rations. When given to lactating mares, the resulting improvement in fiber digestion is reflected in changes to milk quality, to the benefit of suckling foals, which show improved growth compared to foals suckling mares given feed without supplementation. Moreover, yeasts are a rich source of water-soluble vitamins and phosphorus. Feeding instructions: Feed 1 scoop (40 grams) once daily. 60 cc scoop enclosed.