Orthorexia, or "clean eating" is as much a belief system as it is a dietary prescription. Believers eschew "normal" eating, thinking that only their particular restrictive versions of proper diets will provide optimal health. But the restrictions that such diets adhere to could be unhealthful, to say the least.
Orthorexia — "straight eating" — is the latest entry on the list of eating disorders that can afflict us. But so far it hasn't been acknowledged as a separate entity by the psychiatric professionals. Is it really something new, or an offshoot of an older type?