Slow and steady weight loss is better (and safer) than riding the dieting roller coaster. If you’re looking for long-lasting weight loss results, aim to lose an average of about two pounds each week. In order to lose weight you’ve got to consume fewer calories than you burn. As a bonus, when you combine dieting with exercise, you’ll be reducing your caloric intake and increasing your caloric burn rate at the same time.

-Secrets of A Healthly Lifestyle