Laparoscopic sleeve gastrectomy (LSG) was initially introduced for super-obese patients in a two-step concept in order to reduce the perioperative risk. Many years before a very similar technique - the Magenstrasse and Mill (M & M) operation - was developed by Johnston in Leeds / UK as a "more physiological" bariatric procedure with acceptable weight loss, while preserving gastric emptying mechanisms and thus minimising possible side-effects such as vomiting, dumping and diarrhoea, which are common complications of gastric bypass procedures. The following manuscript analyses the current literature and our own preliminary results and parallels publications of the M & M procedure. Until now numerous modifications (e. g., bougie size and residual volume, stapler technique, use of buttress mate-rial) have been reported. However, reported -morbidity and mortality rates were equal to those of gastric banding and gastric bypass (RYGB). In conclusion, laparoscopic sleeve gastrectomy (LSG) has now proven to be as effective as the RYGB for weight loss over a three-year period. Control of hunger and feeling of fullness are -reported to be superior compared to gastric band-ing. Laparoscopic sleeve gastrectomy is no longer an experimental procedure. It should be accepted as one of the effective standard procedures for surgical treatment of morbid obesity.