Oh man, its been almost 9 yrs since Max was a pup, I was 11, hmmm I know we let him eat as much as he wanted when we first got him, then it went to 2 feedings/day & its been 1 feeding from there on. Max is about 70-80 pounds & he eats about 3 cups/day. We feed him Nutro & that food produces little waste, so he poops once aday & pees about 2-3 times aday. With Max we don't have to deal with him wanting to go outside every 5 mins for a pee or a poo, like the 2 annoying dogs here do.