In the last few years, the management, the feeding and the careful of the horses has made sure that their average life is extended by several years and we often find ourselves in the situation where we have to manage old horses. Age, experience and temperament make them the best subjects for beginners who approach to ride horse and in every equestrian school there is at least one old horse. Furthermore, old horses are often mares and breeding stallions after a sport career. Age is not a limit for sport, but at some point in their career, horses have difficult in maintaining bodyweight and are prone to slimming, especially in winter and sometimes it happens very quickly, despite having plenty of food and preserved appetite. Let’s see together how to approach the old horse from the nutritional point of view.