I think Cygnus was heading us on the right path. Obesity perhaps could be just one symptom of gluttony. Gluttony is more to do with the idea of wasting food, for example you "ate all the pies" because... (a) Pies turn you on [Addiction] (b) You just like eating pies [Overindulgence] (c) You didn't want to give them to the starving homeless person sat outside BK [You're a tight a*se].
It's also more subjective that it first appears... perhaps someone in the developed world may eat breakfast, lunch, dinner and supper - plus the odd snack! That of course doesn't make you a glutton. If that person was picked up, placed in the middle of a starving country and didn't change their eating habits, perhaps you'd have grounds to call them a glutton.
Despite this, I kind of understand why these things seem a little odd and IMHO I think social change almost upon us - certainly in a bigger sense than the JW issue. To get things in perspective, the vast majority of obesity is caused by poor eating habits coupled with a lack of exercise, I don't mean to be provocative but, most overweight people could with the correct motivation and support achieve their ideal weight.
Why is obesity socially acceptable? Smoking at a dinner table is now about as socially acceptable as picking your nose. If you see an obese person ordering 'another cream cake' at the dinner table would you dare say a word???
PS. I do not mean to offend in anyway.