Pure Keto Cleanse nly performed on patients who are suffering from stomach ulcer or cancer. During those times, doctors observed that most of their patients lose after their respective operation. Soon after, the procedure is adapted for obese people to help them lose . surgery is a type of surgery that restricts the person's stomach to hold food. When this happens, the whole process of food digestion is drastically slowed down. The person can eat as much as he or she used to, but the processing of food and .