Fusion Ultra Athlete Formula brings to life what research knows: raw meat improves the digestibility of kibble. Nowhere is this more evident than in extreme athlete canines, where every calorie of every morsel must be absorbed to allow for maximum endurance. Highly digestible raw chicken is the first ingredient, and, as nature intended, animal proteins provide 87% of the protein in this formula. Antioxidant rich salmon oil is included to provide high levels of essential Omega 3 fatty acids EPA and DHA, and brewer's yeast (rich in B vitamins) is helpful for high stress situations. Our own vitamin blend, OVN (Optimal Vitamin Nutrition) – with added biotin and zinc – offers the essential nutrients to maintain the normal structure and function of skin, coat and paw pad health under high performance conditions. Our unique fiber mixture encourages a healthy gastrointestinal tract which is the start of your dog's immune system. Fusion – melding the metabolic needs of your sporting dog with the dietary science to make that possible even during the most rigorous work. Fusion is intended for all but large breed puppies. Fusion Ultra Athlete Formula Dog Food has been formulated through the combined efforts of a Ph.D. canine nutritionist and a practicing small animal veterinarian experienced in competitive dog sports.