Arden Feeder:
I have a piggie who is lactose intolerant and who has pretty bad heartburn, any suggestions on what I could fix him that is high calorie/will help him gain weight?
You can swap out most milk based foods with milk alternatives like soy, almond, or rice milk.
As for heart burn, he may want to stay away from greasy foods. Still, high fat foods like salmon, nuts, and avocado should be fine.