Relationship to Bariatric Surgery and their Gastrointestinal Hormones: how we Weight Loss?

Obesity is a disease related to severe metabolic comorbidities due to the high accumulation of body fat. In the context of this pandemic, bariatric surgery is the most effective treatment for the long-term resolution of the disease, having both structural and anatomic and hormonal effects on the gastrointestinal tract. The hormones analyzed in this review are cholecystokinin, secrete, gastrin, glucagon-like peptide 1 (GLP-1), peptide YY, pancreatic polypeptide, leptin, adiponectin, ghrelin, glucose, cholesterol, gastric inhibitory peptide, insulin, and glucagon. After bariatric procedures, changes in vitamins and micronutrients are also observed, which can lead to anemia, changes in coagulation, bone metabolism, neurological, and immunological deficiencies.