I think when someone is not at a healthy weight (and I'm not talking a couple pounds below, I am talking FORCING YOUR BODY to look emaciated), it is pretty obvious. There are some individuals who maintain a very skinny look without going to extremes with their diets, and I think Giuliana is one of them. She always looks vibrant. She looks skinny but not in a "bony skeleton" sort of way. It's hard to explain, but this woman, IMO, is at a healthy weight.