We always fed once a day, at night, but then our old rottie (he's 10, we adopted him about 6 months ago though, from the same SPCA where we got Tia) got really really sick with pancreatitis. He had an adverse ataxic reaction to an anti-nausea med on top of the pancreatitis, and was an absolute mess. He spend 5 days in the vet clinic, home for 4 days, then back to the vet clinic for 2 more days. He was not eating, and hadn't eaten in about 2 weeks. When he started feeling a bit better, we were offering him wet gastro food about 5 times a day. As he progressed and we moved to kibble, we decided to feed him twice a day to try and help regulate his blood sugar (he is acting very diabetic, this is all very recent). When we did that, we decided to start feeding all 3 dogs twice a day to make it easier, since they are all on different foods. My husband can't keep track of who gets how much of what, so he feeds them each 1 cup at night, I make up the difference in the morning.