Question: how many calories does a 200lb man need to lose weight?
Answer: You have to cut 3,500 calories to drop a pound, which is about 500 calories a day, seven days a week. You can safely aim to lose 1 percent of your body weight in a week. So a 200-pound person who wants to lose two pounds a week will calculate that they need to cut out 1,000 calories a day.