Horses can experience nervousness and tension before exercise or competition causing them to misbehave or wash-out. So Kalm contains a premium grade Magnesium with L-Tryptophan, an essential amino acid associated with the production of serotonin, to calm and focus the horse. Fed daily, this can aid concentration and willingness to work, without removing the edge required for competition. Young horses also have a tendency to be highly strung and distracted, leading to training problems in the future. Feed young horses or ponies in their first season Super So Kalm Powder to help them relax and to ensure that their new experiences are good ones.