I'm very much in love with this community, so you can imagine my excitement when I found this article and couldn't find anything similar in the memories/history.
Do tell me if it has been discussed already and I have missed it (i'll apologise in advance!)
As an [recovering?] anoretic, I know the diagnostic criteria for anorexia nervosa, but have often questioned when restriction of calories crosses the line and becomes an "eating disorder", diagnosable or otherwise.
An article discussing the differences between anorexia and restriction