Biliopancreatic Diversion (BPD) is a type of weight loss surgery that combines gastric restriction with a significant bypass of the small intestine to reduce calorie and nutrient absorption. This procedure is designed for patients with severe obesity who need a significant weight loss solution.

BPD involves removing a large portion of the stomach and rerouting the small intestine to limit food absorption. The procedure is often followed by a variant known as the duodenal switch, which provides additional benefits for patients with metabolic conditions like diabetes.

Postoperative care includes managing nutrient intake, taking vitamin and mineral supplements, and avoiding high-fat foods to prevent malabsorption and complications like diarrhea. Ongoing medical supervision is necessary to monitor for deficiencies.

Biliopancreatic diversion is effective for achieving significant weight loss and improving obesity-related comorbidities. However, it requires careful management to ensure long-term success and prevent nutritional complications.