Here's the thing:  I'm a recovered anorexic.  I'm still friendly with some people I went through recovery with.  When a person goes through recovery, they learn how to fix the "relationship" with food, meaning they don't eat too little, but also don't eat too much (less it turn into binge eating disorder).  The therapists kept stressing that the body needs the nutrition in food, so to eat a variety of healthy foods 80% of the time.  No one I know who I went through recovery with is fat.  Not because they're still sick, but they're well.