ABSTRACT
Morbid obesity is associated with several comorbidities and increase risk of mortality. To avoid risk multifactorial intervention must be implemented. Morbid obese subjects who failed dietary and medical treatment should be considered as candidates for bariatric surgery. Although bariatric surgery is the most effective and sustainable treatment for morbidly obese patients, several nutritional deficiencies and metabolic complications can occur. Therefore, the perioperative assessment of nutritional status and education in all undergoing bariatric surgery, and encouragement of adherence to supplementation are important aspects of long term result. The patient had bariatric surgery also should understand postoperative dietary habit and component. The postoperative bariatric diet is based on modification of food texture and consistency, volume of food and liquid, frequency, and duration of meal, food intolerance and nutrients requirement for the patients. In addition, the bariatric patients need to adhere to dietary guideline to optimize long-term weight loss. Therefore structured nutrition counseling and education by qualified dietitians is essential part in the lifetime management of the patients.