Today, obesity is one of the most important health problems of developed and developing countries; generally in this situation fat mass in body increases excessively relatively to fat-free mass. Obesity is a serious and chronic social problem. It is a common disorder that effects people's health-related quality of life in many ways. It often leads to depression and other psychiatric disorders.After Obesity in addition to trying to gain right dietary habits , we can prevent a permanent life in obesity by adopting an active life.There are important points that should be considered in the post-obesity diet; these are ; regular and adequate nutrition as well as the right food choices.