What are percentages of complications of bariatric surgeries?

 About 20 percent of people who opt for weight loss surgery require further procedures for complications (Klein, 2013)  30 percent deal with complications relating to malnutrition, like anemia or osteoporosis since the intestinse are absorbing fewer nutrients (Klein, 2013)  As many as 20 percent of people will gain a significant amount of weight back (Klein, 2013) Honeymoon period : 2 to 3 years  Weight regain might be related to :  Alcohol abuse  Liquid calories intake  Technical failures of the surgery