I have an event I would like to attend in 2 weeks. So I want to do one of those 10-14 days crazy diets. However, I have been watching my calories and exercising for the past 5 months so I don't want all of my hard work to go to waste. I was thinking if I do this crash diet for 2 weeks, then I go back to my 1500 calorie diet. Let's say I lose a few pounds, will I keep those pounds off after I go back to my 1500 calorie diet or will I gain it all back. And more improtantly, will the weight come off from the few pounds of muscle i've worked so hard to put on?? Thanks in advance for taking the time to read this.