The 1200 limit is a guideline, but it's also a movable guideline depending on a lot of of factors, not the least which is size (bigger people tend to need more calories to keep things running), metabolism rate (some people's metabolism runs "faster" or "slower" and consequently need more or less than recommended calories), other health factors (there are times when it's more important to get the weight off quickly, and the risk of a low-cal diet is a smaller risk than what is posed by the additional weight), variability of diet (i.e. you're likely not going to starve or slow your metabolism down permanently by eating at 1150 or 1000 for a few days and more other days), mental factors (are you eating low-cal because you have an eating disorder, or because you're on a doctor-supervised very-low-cal-diet), and so on.
I understand that people want to help, and it's an easy ruler to pull out and measure against a person's diet, but I'm wondering if we do more harm than good by adhering to the "1200 calorie or starve" mentality as THE basis for a good diet. Perhaps if we concentrated more on "make sure you're getting all the vitamins, minerals, and macro-nutrients your body needs to keep running," the 1200 calorie advice would be moot, since it's quite likely that a person is going to be eating more than 1200 calories in order to make sure their nutritional requirements are met rather than just their energy requirements.
I may be the odd one out here, so if I am, please feel free to ignore this posting!





