We feed our 3 kitties Natural Balance dry food, and a tsp. of Wellness wet once a day. They love it!
Definitely try a higher quality food as we have a foster cat who is eating Whiskas, and her hair falls out in clumps. Her coat is also very dull and greesy!
We would feed her our cats food, but we spend enough with 3 cats eating it, that we can't afford to feed the foster this, although we do give her the Wellness wet food too.