Calorie Intake

So I’ve been worried about why once I pass the 200 mark my weight loss slows to a crawl. One of the things I love about the South Beach Diet is that you don’t count calories ( I hate it and I usually eat more when I do), but since I haven’t been losing I’m going to count every once and awhile just to make sure I stayed on track. I found a formula for what your calorie intake should be to maintain your weight and then you subtrake 500 cal to lose 1 pound a week. http://weightloss.about.com/od/ea