Healthy weight loss needs to do the following: 1, to maintain the appropriate rate of weight loss, usually 0.25-0.5 kg per week, that is, 2-4 pounds per month to reduce the rate of health, if the weight loss rate is too fast will cause intense biochemical metabolism in the body, which in turn may endanger health. 2, do not over dieting, if dieting is too strict will cause the most basic energy intake is insufficient, as well as numerous The lack of nutrients, which in turn may cause anorexia nervosa, malnutrition, high risk of immune deficiency.