50# IMPACT PROFESSIONAL MARE & FOAL - Help your horses live up to their fullest potential with Purina Impact Professional Mare & Foal Feed. It delivers premium nutrition optimized for your breeding and growing horses, to meet the demands of the equine professional. Impact is formulated with only high-quality ingredients that have been proven through years of feedings to support overall horse health and performance. This controlled starch and sugar formula has high-quality protein with added amino acids to support breeding mares and growing foals. With over 100 years of expertise, extensive research in equine nutrition, and a dedicated team of Ph.D. Equine Nutritionists, nobody knows more about horse nutrition than Purina. See the difference Impact Professional can make for your horses.