Our High Endurance Formula Is High In Protein And Fat To Promote Sustained Energy Release, Strong Lean Muscles As Well As Healthy Joints And Coats. Lamb And Beef Are Rich In Zinc And Vitamin B12 Which Promotecardiovascular Health, Aid Metabolism And Boost Vitality. A Balanced Carbohydrate Blend Including Rice And Oats Help Provide The Energy Needed For Those Sudden And Responsive Bursts Of Speed, All Day.Suitable For Very Active Adult Dogs.