It is intersting that the bible does not speak specificly about things like Smoking, Blood tranfusions, etc, which the Watchtower will expell its own members over.
Yet the bible does speak specificly about over eatingit even goes on to say that such people will not inherit the Kingdom. Yet from my experience in the organisation many Witnesses would over-eat(few pleasures left when you got your head in a book all the time) and many were clearly overweight and suffering for it!. This led to all sorts of health problems for them from back trouble to heart disease, Yet I never heard of any being dissfellowshiped on the grounds of gluttony/overeating!!
Have you?