Mental Health, and Eating Disorders in Patients After Roux-en-Y Gastric Bypass Surgery (RYGB).

<b>Introduction:</b> Obesity, as one of the main health problems worldwide, is associated with an increased risk of developing mental and eating disorders and negative eating habits. Bariatric surgery allows for rapid weight loss and alleviates the symptoms of concomitant diseases in obese patients.<b>Aim:</b> Pre- and postoperative estimation of mental disorders and eating behaviors in patients after Roux-en-Y Gastric Bypass (RYGB).<b>Material and methods:</b> Analysis of data from up to 5 years of follow-up including clinical examination and questionnaires.<b>Results:</b> Following parameters decreased after RYGB: anxiety and hyperactivity from 32.81% to 21.88%, mood disorders - 31.25% to 20.31%, substance abuse - 40.63% to 28.13%, emotional eating - 76.56% to 29.69%, binge eating - 50% to 6.25%, night eating - 87.5% to 20.31%. Postoperative rates of: negative eating habits, daily intake of calories and sweetened beverages, flatulence, constipation, and abdominal pain decreased, while the rate of food intolerance and emesis increased.<b>Conclusions:</b> In our patients, the occurrence of: mental and eating disorders, negative eating habits, daily calories, sweetened beverages, coffee intake decreased after weight loss (as a result of RYGB), but water, vegetables and fruit consumption increased. Lower rate of flatulence, constipation, and abdominal pain, but higher of food intolerance and emesis were also confirmed after RYGB.