Gluttony: According to the Baltimore Catechism, gluttony involves more than just eating too much. It also involves being overly concerned with our food--complaining because it's not what we want or what we think is "healthy". Obesity falls under this category of course but so does anorexia. Worrying about how many hormones are in our milk or how many pesticides are on our potatoes, in my opinion, is really treading closely here.
We should be more concerned with our souls getting to heaven than with our bodies living on this earth. Of course, I don't mean we should neglect our bodies. On the contrary, that too would be sinful. We are only asked to do the best we can and be responsible. God requires us to make reasonable choices.
I'd just like to know where you're getting this from. I tried to look it up myself, but I couldn't find it. Please provide your source so I can look at it myself. Thanks!
Baltimore Catechism No. 4. Q. 59
Specific quote: ""Gluttony" is the sin of eating or drinking too much. With regard to eating, it is committed by eating too often; by being too particular about what we eat, by being too extravagant in always looking for the most costly things, that we think others cannot have. With regard to drinking, it is generally committed by taking too much of intoxicating liquors. The drunkard is a glutton and commits the sin of gluttony every time he becomes intoxicated. Gluttony, especially in drink, comes in a manner under the First Commandment, because by depriving ourselves of our reason we cannot give God the honor and respect which is His due."
As for the comment regarding anorexia being a form of gluttony: I recently had this conversation with my priest. My mother is obsessed with food. She won't eat what I cook, even though it is good for her. Instead, she is obsessed with how her body looks. When she's starving after 3 days of not eating, she binges on Cheese Nips--will eat a whole box in about an hour. This obsession is what the sin of gluttony is all about.
Many people look at sin very narrow-mindedly. They say "gluttony" and automatically think "obese." But many things fall under this category. Drinking too much alcohol is also considered gluttony.