*With Outlast® Gastric Support Supplement* When our equine companions reach their “senior years” it doesn’t necessarily mean they are ready to slow down. But their nutritional needs change over time, and they need a diet that addresses the unique needs of an aging body. Equine Senior® Active horse feed is designed to be fed with hay or pasture and is formulated with highly digestible energy sources and nutrition your senior horse needs to enjoy an active life for years to come.