Till date, there are mainly four types of weight loss surgery. These weight loss surgery operates on the stomach to help in the loss of weight. Weight loss surgical treatment does not involve removal of fat tissue by suction or excision. Instead, during these weight loss surgeries, the size of the stomach is reduced with or without re-routing the intestines. Eating behavior thus improves dramatically because the person can no longer comfortably hold as much food. This weight loss surgery will help to reduce the amount of calorie intake and ensures that small amount of food is eaten slowly and chewed properly. This weight loss surgery actually helps to modify the eating behavior.
Generally the doctor will only recommend this form of weight loss treatment if one is at least 100 pounds overweight or have a BMI greater that 40. This weight loss surgery is considered a last resort as treatment for obesity and should only b done after other programs have been seriously tried without success.
One of the weight loss surgery call vertical banded gastroplasty is a gastric restrictive operation that involves the creation of a small stomach within the normal stomach. A normal stomach will usually be able to hold 4 to 6 cups of food. Eating tiny bites and chewing thoroughly is a difficult habit to acquire and this is the aim of this type of weight loss surgery. When food in the small stomach empties into the larger stomach, gastric juices mix with the food and digestion continues, with normal passage into the small intestine. After the operation, patients will feel tightness in their upper chest when they overeat. It is the feeling of fullness and the subsequent slower emptying of the small stomach that lead to weight loss.
Gastric bypass is a procedure in which a small gastric pouch is made in the small part of the upper stomach. This weight loss surgery has this name because the food that is eaten bypasses the major portion of the stomach and a generous length of the small intestine. Food is not absorbed until it mixes with gastric juices farther down in an artificially created juncture in the intestines. Some of the food that is eaten is not digested but is passed through the system. This food does not supply nutrients and hence the accumulation of fat.
The doctor who is familiar with all types of weight loss surgery would most likely be the best person to help with the decisions about which procedure to have. Research and explore the many kinds of weight loss surgeries available to have a better knowledge base.