Originally Posted by Harry and Lola
To fatten up dogs, we always use raw lamb mince (I think Americans call it ground?) Lamb has a high fat content and can be given alone or mixed in with kibble. Otherwise look for kibble that targets weight increase.
Also, keep an him, if he is not putting on weight despite increasing the volume of food, consider getting him tested for medical issues such as EPI, where they eat and eat and basically starve to death at the same time because they can't digest food.
I dont know much about EPI, I will have to get him tested if i dont see a change, his poops are nice and healthy looking..i will look into the lamb mince and food that increases weight gain,