It's really hard to determine a healthy weight for someone without actually seeing htem because sure you can say 5'3"..... 120lbs is a good healthy weight for you... but what people don't take into account is bone SIZE... a lot of women have very small bones... I'm seriously built like a child.. so for someone like me although I don't like 120 is fat at all.... 120lbs on my very small frame would look ridiculous.