Some horses are born nervous, while others may suffer from nutritional deficiencies that may induce stress. Symptoms of deficiencies include nervousness, excitability, muscle tremors or cramping, lusterless coat, elevated blood lactate and pyruvate levels, and intolerance to work or exercise. These symptoms are more likely to occur in horses on a high-grain/high-carbohydrate diet. Formula 707 LifeCare Calming Supplement is scientifically formulated to promote relaxation and mental alertness without drowsiness so your horse can be more relaxed and focused.