D.C. D.D. Obesity is excessive accumulation of body fat. The study of fat and of obesity, is known as bariatrics. Fat is a pathological accumulation of unwanted tissue in the body.
Obesity is a state of disease.
Surgery for weight-loss is dangerous. The surgeon goes in and removes part of one of the abdominal organs. The idea is that you put all the food that you wish into one orifice and it will come out the other orifice at the back. You have no assimilation. You can eat all you want and you won't accumulate fat.