I have food out for my guys 24/7, and I've done that since their first step in the door. Actually, I keep two kinds, Beneful, which they eat in the mornings, and Welness, which they eat in the evening. Both are available to them full time.
There are days when they won't eat over 1 (combined) cup between them, and other days where they almost empty both bowls. Each bowl holds about 2.5 cups.
I never push them, they never argue about who eats what, and are given treats as well, with the cheese type being their favorites. They both are quite healthy and in very good shape.
This practice of letting them decide such things, has been really easy on me, and I think them, as well.
