Very Low Calorie Liquid Diet for Pre op Patients

Despite the relative consensus on the benefits of pre-surgical weight loss, i.e., the reduction of comorbidities associated with surgical act, such as decreased visceral fat, liver volume, hemorrhage perioperative and surgical time, the characteristics of the diet to be employed in this period need to be defined more clearly. As there is no description of comparative studies on diet of normal consistency, using solids and liquids, there are doubts as to the real need for consistency liquid diet in preoperative bariatric surgery. The lack of robust evidence has made nutrition professionals adopt different procedures. There is still a belief that these patients are unable to lose weight in the preoperative period, the ongoing history of previous attempts without success.

Liquid and normal consistency diet with a very low calorie diet will be given to patients pre-operatively in bariatric surgery

The patients were weighed at the start and after following a liquid diet for tow weeks they were weighed again.

Total body, visceral and liver fat loss, resting metabolic rate and changes in blood and urinary parameters

At the start, bioimpedance and indirect calorimetry exams, abdominal ultrasound scans, blood tests and urinary exams were made of the patients and after following a set diet for 2 weeks these measurements were taken again.

Inclusion Criteria: To be clinically severe obese; To be in preoperative phase of bariatric surgery. Exclusion Criteria: Pregnancy and minors under 18 and adults over 60 years of age.