Something that just occurred to me when everyone was discussing if Justin really does/could eat 8,000 calories a day: we are assuming that these dullards even know or care what a calorie is. Part of what often makes someone super-morbidly obese is ignorance and denial. None of the people in this family (and I use the term loosely) seem to have an IQ that even broaches normal. It always baffles me that, with the availability of information out there, these folks don't know the difference between healthy and unhealthy food, what a decent portion size is, or, in this case, that smoking or being exposed to a smoker while pregnant is dangerous.
So I would venture to say that when Dr. Now references that she must be eating 7000 calories a day, Angie quickly (and, in her eyes, very cleverly) tosses out, "He eats more than I do!" And dimwitted Justin says, "yep, yep- I eat 8-10,000 calories a day." I am seriously doubtful that he would have the interest or the capability of counting his calories.
Angie mentioned a couple of times that she "supports" the family. My guess is that she is the only one who brings in any money, however she gets it. Therefore the rest of the lot is on the hook to her. And she relishes that sense of control.
The scene where she decides to throw the boyfriend out of the house and she and Desiree "discuss" it is very telling. Her daughter is suddenly thrown in a situation where she has to choose between mom and boyfriend. She cries. Angie's reaction? "Ohhh, here we go; I knew you would get emotional," or some such thing. Classic gaslighting: "it's not me; it's you"- just like when she told the boyfriend "Get a life," which is ok- but then says, "and then he had to OVERREACT, up to HERE," (as she raises her giant arms up in the air).