I have seen two big fat tubs of lard at the Kingdumb Hell I used to go to. (I am here defining a big fat tub of lard as someone that has trouble fitting in a standard chair and needs special seats while in the Kingdumb Hell, yet does not need a wheelchair). As for gluttony, I cannot tell if it was eating too much or not getting enough exercise that contributed to the problem.
Now, I know that eating too little can trigger obesity, strange as it may seem. You see, when you cut way back on calories, your metabolism slows down. Anyone who has ever lost weight on a diet only to quickly gain it back, and then some, on a regular diet, will attest to that fact. In fact, some people that are very thin actually eat more than fat people and stay thin because they eat so much that their metabolism is extremely high. Such people can correct the problem by going on any strict diet for a few days, losing weight, and then going back to normal. However, I warn anyone that tries it that it can be too effective, and if you gain back too much weight, it is quite difficult to re-lose it.
What I would need to see is a pattern where the person eats so much that it interferes with normal activity, not due to excessive metabolism (and I would not require such person to take medication to normalize their metabolism). Whether a person is very fat or not is not the issue, since many fat people have tried dieting and have ruined their livers and metabolisms trying to lose weight. But if the person is obviously and blatantly preoccupied with eating all the time, or is blatantly lazy for no good reason, then there is a gluttony or sloth offense (which to me is more stupid than wicked).
Additionally, I think the organization creates a lot of those tubs of lard. You see, they are urged to pioneer. And, this deprives them of adequate sleep (another factor in obesity: sleep deprivation can make healthy young people function like old diabetics). Add to this the Pioneer Diet of TV dinners for supper and Big Macs or Whoppers for lunch most days, you have the recipe for a weight disaster from toxicity and/or deficiencies in nutrients. And the exercise that most of those pioneers get is of poor quality (you need a steady hour of walking per day to keep a healthy weight, and most of those people get less walking and more door knocking). Throw in a little stress from the boasting sessions, and I think the organization itself is responsible for many people getting fat.
Which tells me that the Tower finds fault with people for "offenses" that are really none of their business. Hey, if they can ban me from field circus for being fat, I will simply stuff as many pillows underneath a Santa Claus suit and wear that along with some lead weights so I will come up at 500 or 600 pounds. Plus I will show up looking like a ragamuffin. Hopefully, that will be the last time I ever get sent or dragged out in field circus.