My older boy just turned a year. I got him about 3 months ago and I've battled with his weight. He eats, he's very active, but I can count his ribs. I tried all raw, raw and kibble, all kibble, mixing in eggs....I am running out of ideas. I know GSD pups are usually pretty lean but he's too lean. How do I get some weight on him? Or what is something that is sooo good he won't refuse it? He will only eat at night.....and doesn't eat as much as he should. Took him to the vet, perfectly healthy, "needs to put on a little weight", no worms (and on Interceptor). I'm really stumped...usually I have opposite problem and have to limit how much my dogs eat, but this boy just doesn't eat well and isn't putting on weight He is still growing. Any suggestions?