The pet food products from Nutro Ultra use high-quality ingredients that have a higher nutrition value when they are compared with the pet food products from Nutro. The Nutro Ultra contains a higher number of nutrients such as proteins, vitamins, minerals, carbohydrates, and essential fatty acids. These nutrients can help your pet by promoting the complete development and maintenance of his or her body. The percentage of Omega 6 fatty acids and Omega 3 fatty acids present in these two pet food products also differs from each other. This is because the composition of Nutro Ultra has a higher level of Omega 6 and a little bit lower level of Omega 3 when compared with Nutro.