But people jump into weight-loss programmes without understanding these underlying reasons... and when they do lose weight they get in touch with what they've been trying to avoid all along. And the weight comes back. What you have to do is eliminate the original reason for overeating." Go Slow The best way to approach a major dietary change is slow and easy, says Terry leptitox nutrition , a registered nurse who has been teaching natural foods cookery in Philadelphia for more than two decades. "People have an 'all-or-nothing' attitude toward diet. They have this vision of how their diet should be, and they impose all this pressure on themselves to change completely," she told us. "But I try to inspire them to make the switch at their own pace. It should be pleasurable, because after all, eating is a celebration of life, and if you don't enjoy it, something's wrong.".