Give us a question that hasn't been answered by someone yet, or ignored to the level you've ignored lots of posters requests that you shed some wisdom on other 'self-inflicted' conditions or injuries.
Re the 64% - for one, the BBC is not peer-reviewed. And I am not a medical professional and can't possibly make a judgement call as I have absolutely no idea of which medical conditions can cause weight gain (I've just this moment learnt that hyperthyroidism causes it, for one).
However I do believe it is a gross oversimplification to assume that people who are overweight simply "gorge" themselves on food. They may have an healthy diet because of the cost implications. They may be spending most of their monthly food budget on healthy food for their children and are left themselves snacking on cheap foods like toast, biscuits and breakfast cereals. They may have a sedentary job. They may not be able to find the time between work and childcare to do more than some walking, so not the real targeted weight-busting exercise that people like MarieNE are advocating. They may very easily not be able to afford any money at all to do exercise, and even lovely free walking isn't always possible if you don't have a proper lunch break and then can't leave the house in the evenings because of childcare.
But no, none of that matters, it is far easier to say "you're fat and you're unhealthy because you are lazy and you eat too much".
Has anyone on this thread advocating improved diets actually looked around a supermarket at what you could buy if you were on a deathly tight budget? The cheapest fruit is in a tin - in syrup. I'm not saying you can't eat cheaply and well with lots of stews and lentils and the like, but you need to learn how to cook, which takes a bit of time and could really benefit from some extensive support.