Serious weight loss questions?

You're probably a healthy weight now, I'm guessing? And you just want to get down to a more fashionably thin weight? In such a case, it's a lot harder to lose weight than if you were trying to go from 200 pounds to 150 pounds. Eating too little in such a case is likely to cause your body to slow down its metabolism because it's in starvation mode. You probably have to eat MORE to lose more weight, not less. That is, 1000 calories/day is too little. You should go up to 1500 calories/day, and then exercise more. This will keep your metabolism up while causing you to burn lots of calories and lose weight. Also, people don't lose 5 pounds in a week. That's totally unrealistic. Only on like the TV show The Biggest Loser do people lose that much. One pound equals 3500 calories. So for every 3500 calories you burn above and beyond your baseline calories, you'll lose one pound.