GainIT! is a premium concentrated, high fat supplement for horses. Aspergillus oryzae has been added to support a healthy digestive function. GainIT! is formulated to provide extra calories needed for weight gain, support of normal physical and mental performance, and Omega 3 and Omega 6 fatty acids for healthy skin and coat. Contains a source of live (viable) naturally occurring microorganisms and Aspergillus oryzae to improve fiber digestion while helping to maintain proper gut pH. Your horse will love the fresh apple flavor. Powder.