Just one ounce of Digest Aid can help poor keepers maintain peak condition and gain weight on less grain. Contains Bifidobacterium bifidum, a beneficial microflora that secretes enzymes that aid in the breakdown of fibrous cellulose into fatty acids. The fatty acids are then absorbed and used by the horse as a source of calories and energy. Digest Aid allows the horse to fully utilize the nutrients in its diet, increase weight gain and maintain peak condition on less grain.