ok, i'm going to try and answer everything:

"Have you had any bloodwork done on the dog? If not I strongly reccomend doing so."

Yes, the vet did it, but told us she was fine, just too skinny. ( people started getting turned-off when you could see all the bones in her spine. Eww.

And I never feed her Alpo, that was what her previous owners feed her.

I got her the high-calorie purina 1 for active dogs. It has 16 % fat. And 26% protien.

"Which is available at any petco" We don't have a petco here. And I've never seen Natural Balance

I tried giving her some of the things in that recipie, I didn't have everything, so I sorta fooled around with it.

Yesterday, she gained 2 lbs ! Yay !

Thanks for your help !