Surely you know with in reason what is a healthy size just by looking in the mirror if you have loads of excess fat or can see bones sticking out all over then you are probably at the extreme. Talking about it in the media makes it more of an issue imo and causes people to become obsessive.
Every article is either the nation is getting more obese and becoming a burden on the NHS or loads of people are calorie counting and have anorexia. Its the articles that make people neurotic and not playing with Barbie as a kid.
I have been told in the past I must be starving myself, and then when they see me eat that I must be making myself sick. I never ever thought about my weight when I was younger but I do things like never go to the toilet in a restaurant (so no one thinks I am making myself sick), if I eat something healthy ever people usually comment on have a real meal so I refuse to eat fruit or anything healthy in public. Its annoying! Some people dont want every time they eat to have it analysed by random people as its embarassing! You dont want to come across as either boasting or justifying yourself to look like your lying. I would never dream of going up to a much larger woman and saying your not a 'real' woman why you eating that burger? I wouldnt do it because its rude.
I think if people just didnt read the articles then maybe the media would stop publishing them but they keep doing it as they sell papers/magazines. I refuse to buy trashy mags that all they focus on is who is too skinny and who is too fat. As there seems to be such a little window on which is acceptable its ridiculous.