A few doctors are starting to use the term orthorexia to describe the obsession some people have with "eating right".

http://en.wikipedia.org/wiki/Orthorexia_nervosa

These questions unfortunately remind me of a few people I know:

* Does their diet make it difficult for them to eat anywhere but at home, distancing them from family and friends?

* Has the quality of their life decreased as the quality of their diet increased?