In rations for horses there should be at least 1.5 kg forage dry matter per 100 kg body weight. This is important for the normal functioning of the intestinal system and for the horse to get enough chewing-time to feel satiated and happy. For horses that tend to get fat, we must select forage with lower energy content so they can eat enough without growing fat. For horses in training it is the opposite. They should get enough roughage in the ration but it should also have a higher energy content. This means that we can reduce the overall amount of concentrate in the ration which in turn can have a positive effect on health and well-being and, in many cases, lead to better performance.