Mignarda
Forums Enthusiast
I really don't think that calories of any sort are going to be "pooped out" unless the dog has a digestive issue. Smaller dogs generally have higher metabolisms, and if they're not gaining weight with the extra calories, they probably weren't getting enough to begin with. But if the weight is stable with what you're feeding, and the dog is healthy, I don't know why you'd want weight gain. If he simply has to gain weight, try giving him a hot dog once or twice a day. Not one of those "all meat" dogs, but perhaps a "chicken dog" that has high-carb fillers like corn syrup. I have experience with this kind of thing putting weight on a small dog ... mind you, it's experience I'm not proud of, but it will put on the weight!

