Do 1200 calorie diets work for weight loss?

Sort of. You don't even have to do all that though. I'm almost 5'5" and I weigh about 165. The highest in weight I'm allowed to go is 145, yet, that doesn't urge me to do it. I let my body do what it wants. I once weight over 200 lbs. Neither stress nor working harder will let you lose weight. WORK SMARTER!!!!!