Karen, was it you that had a horse that had insulin resistance, but was not overweight?
My neighbour has a troublesome horse that she can't keep weight on and his front feet are 'ouchy'. I immediately thought of insulin resistance, but that was when she wondered whether he shouldn't be overweight. I've known a few humans that discovered they had diabetes but they were thin as rails... Wanda -- Save the earth, it's the only place to get chocolate.