Purina Equine Senior horse feed, the trusted original senior horse feed, has been helping senior horses live healthy, long lives since its national launch in 1993. Today’s horses are staying active longer than ever, and new findings suggest that healthy aging horses may benefit from a higher-calorie diet designed with controlled starch and sugar and balanced nutrients. So Purina introduced Equine Senior Active Healthy Edge (now Equine Senior Active) horse feed, precisely formulated to meet the unique nutritional needs of moderately active senior horses. But Purina’s Ph.D. Equine Nutritionists and Veterinarians never stop researching new ways to address the specific needs of aging horses. Amplify high-fat nugget and ActivAge prebiotic are just two of the senior horse nutrition breakthroughs included in Equine Senior Active horse feed.