Reduced caloric intake following small bowel bypass surgery: a systematic study of possible causes.
Food intake, appetite and a variety of feelings were measured pre- and post-operatively in obese patients undergoing jejuno-ileal bypass surgery. Decreased food intake correlated closely with the amount of weight loss at both 4 and 30 months after surgery. Malabsorption correlated with weight loss at 4 months but not 30 months post-operatively. The cause of the decreased food intake is unknown and cannot be completely explained by either depression, nausea, malabsorption, liver disease, an attempt to avert diarrhoea, or decreased appetite.
D000328:Adult; D001066:Appetite; D001835:Body Weight; D004032:Diet; D002149:Energy Intake; D005260:Female; D006801:Humans; D007422:Intestines / Q000601:surgery*; D008107:Liver Diseases; D008286:Malabsorption Syndromes; D008297:Male; D009765:Obesity / Q000523:psychology / Q000628:therapy*; D011183:Postoperative Complications; D011184:Postoperative Period