I do feed a mixture. It can be anything – kibble, dehydrated cooked, freeze dried raw, canned food and frozen raw. I don’t have to watch calcium and phosphorus though. You can try adding some fat calories such as some type of fish oil or coconut oil. There’s also a granular food made by Abady that has rice and it has around 800 calories a cup. Raw food, especially the fattier meats added to his kibble might help keep him satisfied a little longer. There are also canned foods that are high in fat and calories. Have you looked at Core canned foods?
