SADI-S Surgery
in Toronto
Advanced Bariatric Surgery for Weight Loss and Metabolic Health
Single-Anastomosis Duodeno-Ileal Bypass with Sleeve Gastrectomy
SADI-S surgery may be considered for patients who need more support than sleeve gastrectomy alone can provide. This advanced bariatric procedure combines stomach restriction with intestinal rerouting to help support significant weight loss, improved fullness, and better metabolic health. At 360 Sleeve, patients receive careful assessment, expert surgical care, and long-term follow-up focused on safety, nutrition, and lasting progress.
What is SADI‑S?
Why some patients consider SADI-S:
- Greater weight-loss potential than gastric sleeve alone
- Strong support for type 2 diabetes and metabolic improvement
- One intestinal connection, compared with two in a traditional duodenal switch
Who Is a Candidate for SADI-S?
SADI-S may be appropriate for patients who:
Have a BMI of 40+
Have a BMI of 35+ with metabolic conditions (such as type 2 diabetes)
Need greater weight loss than sleeve surgery alone may provide
Have struggled with long-term weight maintenance
Are seeking stronger metabolic improvement
Eligibility is determined after a full medical evaluation with our bariatric team.
Expected Weight Loss with SADI-S
SADI-S is designed for patients who require greater metabolic support and more substantial long-term weight loss than sleeve surgery alone.
Because it combines stomach reduction with intestinal rerouting, it delivers both restrictive and metabolic effects — supporting powerful and durable results.
What Patients Can Expect
While results vary based on starting BMI, adherence, and overall health, many patients experience:
Greater total weight loss compared to sleeve surgery
Significant reduction in excess weight : ~70–85% excess weight loss
Strong long-term weight maintenance
Continued metabolic support years after surgery
Patients with higher BMIs often benefit most from the added metabolic impact of SADI-S.
SADI-S Health & Metabolic Benefits
Beyond weight loss, SADI-S can significantly improve obesity-related conditions by altering gut hormones and improving insulin signaling.
Potential Benefits Include:
Improvement or remission of type 2 diabetes
Better blood sugar control
Reduced insulin resistance
Improvement in high blood pressure
Improved cholesterol levels
Reduced sleep apnea symptoms
Improvement in fatty liver disease
The combination of stomach reduction and shortened intestinal absorption creates a powerful hormonal and metabolic shift that supports both weight loss and overall health improvement.
Weight Regain: Sleeve vs SADI-S
Gastric Sleeve
~50–70% excess weight loss
Some patients may regain 10–20% over time
Strong results with proper aftercare
SADI-S
~70–85% excess weight loss
Enhanced metabolic support
Weight regain rate is less common than sleeve
- When regain occurs, it is commonly in the range of ~5–10% of the weight initially lost
Long-term success depends on lifestyle habits, vitamin compliance, and structured follow-up care.
How Much Does a SADI-S Surgery Cost?
If you’re ready to transform your life with weight loss surgery, one of your first questions is likely: how much does it cost in Canada?
At 360 Sleeve, SADI-S is $23,000. While OHIP typically does not cover these procedures, that doesn’t mean they’re out of reach.
SADI-S Surgery includes a comprehensive surgical package along with 360 Complete Care — our exclusive 6-year aftercare program designed to support your long-term success.
Gastric Sleeve vs. SADI-S
While both gastric sleeve and SADI-S promote significant weight loss, SADI-S adds an enhanced metabolic component. Here’s how they compare.
Gastric Sleeve Surgery
VSG (Vertical Sleeve Gastrectomy)-
Main Approach: Creates a smaller stomach without bypassing the intestine
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Expected Weight Loss: Supports significant weight loss for many qualified patients
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Metabolic Impact: Strong, though generally less intensive than bypass-based procedures
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Often Considered For: First-time bariatric patients who qualify for an effective, less complex procedure
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Impact on Hunger Hormones: Helps lower hunger signals by removing much of the hunger-producing area of the stomach
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Diabetes Improvement: Can help improve blood sugar control in many patients
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Nutrient/Mineral Risk: Lower than bypass-based procedures, but vitamins and monitoring are still important
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Digestive Changes: Usually fewer intestinal-related changes than procedures involving bowel rerouting
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Procedure Complexity: Generally less complex than surgeries that include intestinal bypass
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Recovery: Recovery varies, but sleeve surgery often has a simpler early recovery pathway
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Best For: Patients seeking a strong first bariatric option with fewer absorption-related concerns
SADI-S
(Single Anastomosis Duodeno-Ileal Bypass)-
Main Approach: Combines sleeve gastrectomy with one intestinal bypass connection
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Expected Weight Loss: Designed to provide stronger weight-loss support than sleeve surgery alone
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Metabolic Impact: Stronger than sleeve alone because it affects both stomach size and nutrient absorption
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May Be Considered For: Patients with higher BMI, greater metabolic needs, or weight regain after sleeve surgery
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Impact on Hunger Hormones: Includes sleeve-related hunger reduction plus added metabolic change
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Diabetes Improvement: Often considered when stronger type 2 diabetes improvement is needed
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Nutrient/Mineral Risk: Higher, requiring stricter vitamins, lab monitoring, and long-term follow-up
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Digestive Changes: More intestinal rerouting, which may affect stool pattern and absorption
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Procedure Complexity: More complex than sleeve alone because it includes an intestinal connection
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Recovery: Early recovery varies, with more long-term follow-up required after surgery
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Best For: Patients who may need additional support after sleeve surgery or stronger help for weight loss and metabolic disease
Which Procedure is Right For Me?
Choosing between gastric sleeve surgery and SADI-S depends on your medical history, weight-loss needs, metabolic health, previous surgeries, reflux symptoms, and long-term goals. During your consultation, our bariatric surgeons review these factors carefully to recommend the option that best supports your safety and results.
Gastric Sleeve (VSG)
Gastric sleeve surgery may be suitable for patients looking for an effective bariatric procedure with a simpler surgical approach and fewer long-term nutritional requirements than more complex bypass procedures. It is often considered for first-time bariatric patients who meet the proper medical criteria.
SADI-S
SADI-S may be recommended for patients who need stronger weight-loss and metabolic support, including those with a higher BMI, type 2 diabetes, or other obesity-related health concerns. It may also be considered for some patients who previously had sleeve surgery but need additional support for weight loss or diabetes control.
Your final candidacy is determined through a full assessment by our bariatric surgical team.
Keep Reading
Learn more about gastric sleeve surgery
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