losing a pound is the same for everyone 3500 calories equals one pound 500 calories a day for seven days equals one pound. it doesen't matter how much you weigh. THE ONLY QUESTION is how fast and safe do you need to be. Losing weight is serious. The best way is to go to a dietition and have her make you a diet. I lost 120 pounds. No one ever told me weight loss causes yo galdblader to go bad. I had to have it taken out.