Multicentre observational studies performed in the clinical field showed the effectiveness of the dietary treatment in obese patients, even as a therapy during the preoperative period of bariatric surgery. It has proved effective with regard to:
- Rapid weight loss (8 – 10% of the starting weight)
- Reduction of hepatic steatosis
- Reduction in hepatic left lobe volume
- Reduction of periesophageal fat
- Reduction of visceral fat, in particular, omental and mesenteric fat
- Patient compliance attainment
- Reduction in neck circumference and OSAS number