If you’ve been researching advanced weight loss surgeries, you’ve probably come across the SADI-S procedure — short for Single Anastomosis Duodenal–Ileal Bypass with Sleeve Gastrectomy. It’s one of the newest and most effective bariatric surgeries available, combining the advantages of both the gastric sleeve and the gastric bypass in a single operation. At VIVE Bariatrics, we offer SADI-S for patients seeking powerful, long-term weight loss results with a safe and proven approach.
Let’s explore how this innovative surgery works and why it’s becoming a top choice for many patients.
What Is the SADI-S Procedure?
SADI-S is a hybrid bariatric surgery that combines two techniques: a sleeve gastrectomy (which reduces stomach size) and a modified intestinal bypass (which shortens the digestive tract).
Here’s how it works:
- The surgeon removes about 75–80% of the stomach, leaving behind a narrow “sleeve.”
- The first part of the small intestine (the duodenum) is then connected to a lower section (the ileum), allowing food to bypass a portion of the intestines.
This combination limits food intake and reduces calorie absorption, making it one of the most effective procedures for both weight loss and metabolic improvement.
How SADI-S Combines Sleeve and Bypass Benefits
SADI-S takes the best features of both surgeries while minimizing their drawbacks:
- From the Gastric Sleeve:
- Smaller stomach for reduced appetite
- Strong hormonal changes that lower hunger and improve insulin sensitivity
- Simpler stomach anatomy with natural digestion
- From the Gastric Bypass:
- Reduced calorie and fat absorption
- Greater and longer-lasting weight loss results
- Major improvement in obesity-related conditions like type 2 diabetes, sleep apnea, and hypertension
This dual approach helps patients lose up to 80–90% of excess weight within the first 18–24 months, while maintaining balanced nutrition and long-term results.
The Science Behind SADI-S
SADI-S not only restricts how much you can eat but also changes the way your body processes food and hormones. By bypassing a portion of the intestine, it reduces the absorption of calories and fats. Meanwhile, removing part of the stomach affects hormones like ghrelin (which triggers hunger) and GLP-1, which helps regulate blood sugar and fullness.
This combination leads to faster metabolism, improved insulin sensitivity, and powerful results for patients with obesity-related diseases. Many experience remission of type 2 diabetes even before major weight loss occurs.
Who Is a Good Candidate for SADI-S?
SADI-S is best suited for individuals who:
- Have a Body Mass Index (BMI) of 45 or higher
- Have obesity-related health issues such as diabetes, sleep apnea, or heart disease
- Have not achieved lasting results with diet, exercise, or previous surgeries
- Are committed to long-term follow-up care and vitamin supplementation
Because SADI-S alters nutrient absorption, ongoing monitoring and supplements are essential for maintaining healthy vitamin and mineral levels. At VIVE Bariatrics, our team provides long-term care to ensure your success and safety.
Benefits of SADI-S Surgery
The SADI-S procedure offers several advantages over traditional bariatric surgeries:
- Superior weight loss results compared to gastric sleeve alone
- Simpler and safer than older duodenal switch techniques
- Improved diabetes control and better metabolic health
- Lower risk of complications thanks to only one intestinal connection
- Sustained results with minimal long-term weight regain
Patients often describe feeling more energetic, confident, and free from food cravings after surgery — a reflection of both physical and hormonal balance.
Recovery and Life After SADI-S
Recovery from SADI-S is typically smooth and manageable. Most patients stay in the hospital for one to two days and return to light activities within a week. You’ll follow a gradual diet progression — from liquids to pureed foods, then soft meals — as your body adjusts.
Long-term success depends on maintaining good nutrition, hydration, and regular follow-up appointments. With proper care and support, patients enjoy lasting results and improved overall health for years to come.
Why Choose VIVE Bariatrics
At VIVE Bariatrics, we’re committed to providing the safest, most effective bariatric procedures available. Our board-certified surgeons specialize in advanced operations like SADI-S, combining surgical precision with compassionate, personalized care. From your first consultation to your long-term follow-up, we guide you every step of the way toward sustainable health and confidence.
The Bottom Line
The SADI-S procedure truly combines the best of sleeve and bypass — giving patients the appetite control of a gastric sleeve with the powerful metabolic effects of a bypass. It’s an innovative, life-changing option for those seeking maximum weight loss and improved health. At VIVE Bariatrics, our expert team ensures your journey is safe, supportive, and successful from start to finish.
