According to Dr. Edward Eaton Mason - the father of bariatric surgery - the common misunderstanding of gastric bypass surgery is that "the pouch" causes weight loss because it is so small and therefore the patient eats less. Although that principal holds true for the first six months following surgery, Dr. Mason asserts that it is not why the pouch actually works to assist the patient in weight loss long term.
Let's first understand that "the pouch" is formed as part of the stomach is used...


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