My Maddie eats 1/4 cup Natural Balance kibble with a little grated Natural Balance food roll grated on top twice a day. She is 2 yrs old and 7 lbs. I put her food down at 7:30 in the a.m. and what she doesn't eat before I leave for work, I pick up and throw away. She eats her second meal at 5:30 or so. If she doesn't eat it all in the evening, I do leave that out until bedtime in case she wants a snack later. This has worked extremely well for us. Like clockwork, she poops first thing and the morning and right after she eats in the evening.