Once I let my dogs taste human foods (Roasted chicken with rice), they got hook, and refused to eat their own. I have tried to switch to different types of dog food, but have not succeeded in finding one that they like. I wonder if they'd get enough nutrition from eating human food?, and how can I teach them to eat dog food again. (I tried to feed them dog food only, but they'd starved themselves rather than touching the bowl. At the end of two days, I gave in, and feed them human food again