as soon as food enters your mouth your body starts absorbing the nutrients out of it, alot of the time when you are bulimic the most you end up doing is maintaining your weight. Bulimia messes up your body as well. You can rupture your espohagus, or cause scarring, you can have a heartattack any one time you purge you just never know because your electrolytes and everything are out of whack. It can cause long term damage to your health .
Alot of bulimics know all this but its not about the food all the time, its about having control. If they can keep doing it then they are in control and its a release to binge and purge like an energy rush .

this may not be related to your question, but doctors recommend burning the calories instead of not eating. Its healthier and will keep you healthier and the weight off.

Pink is correct. As soon as you put food into your mouth, your saliva begins the process of digesting food. The longer the food stays in the body, the more calories you will absorb. Vomiting and the use of laxatives are both forms of bulimia, and their primary purpose is to shorten the time that food spends in your body, thus decreasing the amount of calories absorbed. However, neither of these methods are healthy and will most certainly lead to problems down the road.

its not always about control, that is a common misconception. eating disorders are complex illnesses and cannot be catagorised by saying that they're all about control.

The vast majority of time it IS about control.
TinkinPink is very knowledgable on these topics.

Anorexia and bulemia are pyschological disorders, disorders caused by physical problems have different manifestations and are treated differently.

Anorexia and bulemia are very alike to other psychological disorders such as obessive compulsive disorder - which again like anorexia and bulemia is about control.

However, very many anorexic and bulemics will deny that it is about control. - This is the denial period (and very normal), they have to first accept that they have one or both of these conditions before anything can be done to help.

im sure she is great.
but eating disorders are not primarily about control. control is the outside issue, but look inside... what is driving the force? is it a lack of trust in the people around them? if so, then essentially it is the trust which is the problem, and the control is just a way to ensure they do not have to face their issues with trust. just an example. its not all about control.

I never said its ALL about control either. Ive had an eating disorder for 5 yrs and was in therapy for it for a year. But i never quite finished therapy so i never really got to the root of why and the reasoning behind it