Sometimes Diet and exercise is not much effective for people with extreme and excessive obesity. Bariatric surgery helps such individuals to reduce their weight. Bariatric procedures cause weight loss by restricting the amount of food the stomach can hold, causing malabsorption of nutrients, or by a combination of both gastric restriction and malabsorption. After bariatric surgery eating patterns of patient changes. Initially after surgery the main goal is to meet fluid and protein needs from a liquid protein diet. As the diet progresses to variety of foods which are low in sugar and fat, it will meet the nutrition needs better for long term health. It is vital to follow diet progression to maximize healing and minimize risk for complications. This review recapitulates the present protocol for nutrition care in bariatric patients to escalate safe practice in preoperative and long-term postoperative periods

Keywords: Obesity; Bariatric Surgery; Nutrition; Eating Pattern; Diet Progression.