Roux-en-Y Duodenal Switch (BPD/DS) Explained: A Complete Patient Guide

The duodenal switch (BPD/DS) combines sleeve gastrectomy with a powerful intestinal bypass to deliver the greatest weight loss and strongest metabolic improvement of any bariatric procedure. Learn how it works, who it’s for, and long‑term expectations.

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Quick Answer

BPD/DS begins with a sleeve and adds a long biliopancreatic diversion with a duodeno‑ileal connection. It produces 40–50% total body weight loss, the highest diabetes remission, and unmatched long‑term durability — but requires strict lifelong supplementation.

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Published Date:

2026-09-12 21:33

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Obesity By The Numbers

Key statistics that highlight the growing impact of obesity.

BPD/DS dramatically increases GLP‑1, reduces insulin resistance, accelerates nutrient delivery to the ileum, and produces the strongest hormonal and metabolic effects in bariatric surgery.

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Nestor de la Cruz-Muñoz, MD, FACS, DABOM

About the Author

Nestor de la Cruz‑Muñoz, MD, FACS, DABOM

‍Dr. Nestor de la Cruz‑Muñoz is a nationally recognized bariatric, metabolic, and foregut surgeon with more than 20 years of experience treating complex obesity‑related and gastrointestinal conditions. He serves as the Medical Director of Bariatric and Metabolic Surgery at HCA Florida Mercy Hospital and has held academic appointments as a Professor of Surgery at a major university‑based medical center.

Dr. de la Cruz‑Muñoz specializes in advanced minimally invasive and robotic surgery, metabolic disease management, and comprehensive long‑term patient care. His work integrates clinical expertise, academic leadership, and a commitment to evidence‑based medicine. He has trained surgeons across the country, contributed to national guidelines, and is widely regarded for his outcomes, innovation, and patient‑centered approach.

Patients choose Dr. de la Cruz‑Muñoz for his combination of surgical excellence, metabolic expertise, and lifelong dedication to improving patient health through compassionate, high‑quality care.

Learn More About Dr. de la Cruz-Muñoz