Most of the foods we carry have a line of food for dogs and cats. Cats have even a harder time processing grain based carbohydrates than dogs. Dogs can handle a small amount of plant based carbohydrates such as peas, apples, carrots, etc. Cats however, not so much. And never should you see grains like corn, wheat, or soy in dog or cat food!
Look for a cat food that has a high protein content such as Orijen, Acana, Wellness, etc.