Does gastrectomy have any effect on the body? How exactly does a gastrectomy for weight loss work? Although many people can guess from the literal meaning of the word, but what exactly is a surgery, people are still confused. Not to mention whether it will have any effect on the body. Here’s how to find out. The procedure is called “laparoscopic gastric sleeve resection”, and in April 2008, it was included in the regular weight loss surgery by the U.S. Food and Drug Administration, and now more than 200,000 people around the world have undergone the procedure. “Our stomach, in fact, is very much like a large wine bag-shaped pouch, small on the left and large on the right, with the esophagus attached to the top and the small intestine attached to the bottom. The vertical line you see on the schematic is the path we take to cut the stomach. The right side of the protruding stomach is cut off according to the thickness of the esophagus, so that the stomach is left with 1/3 of its volume, almost becoming a tube like the esophagus. The stomach wall area is reduced, so we have less room to digest food, and the entire volume of the stomach is only 1/3. Every time I eat a little bit of food, I get full, and I eat fewer calories every day, so I naturally lose weight. Does gastrectomy have any effect on the body? “From clinical studies in the United States, the proportion of patients who have undergone gastric resection for weight loss surgery with late malnutrition is very small. On the one hand, these obese patients were previously over-nourished. Patients just after the surgery to absorb less nutrients, the original body a large amount of surplus nutrients just to make up. For adolescents who are still in the growth and development stage, it is recommended to also take some additional vitamins and trace elements as appropriate, such as taking some 21 gold vitamins and goodness grains tablets.” Although the procedure is very safe, there are certain things to keep in mind. First of all, the patient’s eating habits may change significantly after surgery, and if he eats too much or too fast, it may cause nausea and vomiting. Some patients may need a longer period of time to change their eating habits. The diet should be mainly liquid for 2 weeks after surgery, then soft meals for 2 to 4 weeks and then solid foods can be added gradually. Sometimes it may take 3-6 months to get used to it.