Laparoscopic Sleeve Gastrectomy is a restrictive procedure. In this type of surgery, the outer margin of the stomach, of the size of a banana, is removed to reduce the food intake ultimately leaving the sleeve of the stomach and muscle named pylorus whose function is to empty the food from the stomach into the intestine. This surgery helps in making the size of the stomach smaller so that the patient consumes less food and still feel full. The hormone which makes a person feel hungry is also removed. 

This type of surgery is simpler than a gastric bypass surgery as it doesn’t involve reconnecting of the intestines. 

Some advantages of this type of surgery are:

• No use of implantable band device
• Lesser surgical risk than gastric bypass surgery
• Less food intolerance than gastric bypass surgery
• Faster weight loss