Nutro Inc.  has launched reformulated Nutro  Ultra  food for dogs, according to a news  report .

According to the company, the Ultrassential Superfood Blend has proteins, antioxidant-rich fruits and vegetables, whole grains and healthy oils, which are good for a dog's heart and joint health, eyesight and brain function. The recipe has no artificial flavors or colors, Nutro says.

The Nutro dog food is available at US pet specialty stores. The line also has Puppy, Adult, Weight Management and Senior varieties in dry and wet formulas as well as biscuits.