⚡ Single Anastomosis · Strongest Simple Procedure

SADI-S Surgery in Mexico — From $6,900, ~75–80% Excess Weight Loss

Single Anastomosis Duodeno-Ileal Switch — the modern, simpler version of the duodenal switch. One connection instead of two, comparable weight-loss outcomes, easier to revise. Performed by Dr. Alejandro López's team at Accredited hospitals.

From $6,900 Single Anastomosis ~85–90% Type 2 Diabetes Resolution Best for BMI 40+

Schedule Free Consultation See How It Works

~75–80%

Excess weight loss in 12–24 months

~85–90%

Type 2 diabetes resolution

20,000+

Procedures by Dr. López's team

From $6,900

All-inclusive (flights excluded)

The Procedure

What Is SADI-S Surgery?

SADI-S — Single Anastomosis Duodeno-Ileal Switch — is the modern simplified version of the traditional duodenal switch. It combines a gastric sleeve with a single intestinal bypass loop (one connection instead of the two used in classic DS).

Result: a faster, simpler surgery with comparable long-term weight loss and metabolic outcomes. Easier to perform, easier to revise, and recovery is similar to a primary sleeve. Performed laparoscopically through 4–5 small incisions in ~2 hours.

Only one connection — fewer technical risks than classic DS
Comparable weight loss to traditional duodenal switch (~75–80%)
Strong diabetes resolution (~85–90%)
Best for BMI 40+ patients seeking maximum results with less complexity

How It Works

Three Mechanisms — One Surgery

Restriction, malabsorption, and hormonal change — combined into a single anastomosis surgery.

Sleeve Restriction

The stomach is reduced ~70% (just like a gastric sleeve). You feel full quickly and eat smaller portions automatically.

Single-Loop Bypass

A loop of small intestine is bypassed with one connection — simpler than classic DS but still strongly malabsorptive.

Hormonal Reset

Gut hormones shift dramatically — hunger drops, blood sugar improves, and type 2 diabetes resolves in ~85–90% of patients.

SADI-S vs DS vs Bypass

How SADI-S Compares

SADI-S offers DS-level outcomes with bypass-level simplicity. The best of both worlds for many high-BMI patients.

Factor	Roux-en-Y Bypass	SADI-S	Duodenal Switch
Excess weight loss (1–2 yr)	~70%	~75–80%	~80%
Type 2 diabetes resolution	~80%	~85–90%	~95%
Connections (anastomoses)	2	1 (simpler)	2
Surgery time	~90 min	~2 hr	~2.5 hr
Best for BMI	35–50	40–55	50+
Easier to revise	Yes	Yes (easiest)	Harder
Vitamin requirements	Moderate	Higher	Highest
Starting price (Mexico)	From $5,900	From $6,900	From $7,200

Candidacy

Is SADI-S Right For You?

SADI-S is the strongest "simple" bariatric procedure — ideal for patients who want maximum weight loss with manageable surgical complexity.

✅Ideal Candidates

BMI of 40–55 (or 35+ with severe metabolic disease)
Type 2 diabetes — strong resolution rate
Want stronger weight loss than bypass with less complexity than DS
Plateau or regain after sleeve — sleeve-to-SADI revision
Committed to lifelong vitamin supplementation and follow-up
Adults 21–65 in generally stable health

⚠️Sleeve, Bypass, or DS May Be Better If

BMI under 35 — gastric sleeve likely sufficient
BMI 60+ — traditional duodenal switch may be stronger
Severe pre-existing GERD — Roux-en-Y typically better
Cannot commit to strict lifelong vitamin protocol
Pregnancy, or planning pregnancy in the next 18 months

All-Inclusive Pricing

SADI-S Pricing in Mexico

Prices include hospital, surgeon, anesthesia, hotel, and ground transport. Flights excluded.

Procedure	From (USD)
SADI-S — Tijuana	$6,900
SADI-S — Guadalajara	$7,300
SADI-S — Puerto Vallarta	$7,300
Sleeve → SADI-S Revision	From $7,700
Duodenal Switch (traditional)	From $7,200

* Prices may vary based on individual evaluation. Financing available.

All-Inclusive Package

What's Included When You Book

🏥Hospital stay (2 nights) & private room

👨‍⚕️Surgeon, anesthesia & medical team

🩺Pre-op labs & EKG

💊Post-op medications

🏨Hotel stay near hospital

🚗All ground transport (airport ↔ hotel ↔ hospital)

📋Lifelong nutrition & vitamin schedule

📞30-day follow-up & lifetime support

Your Journey

Step-by-Step — From Consultation to Recovery

Step 1

Free Online Consultation

Talk with a patient coordinator, share your medical history, review whether SADI-S is the right option.

Step 2

Medical Approval & Date Booking

Complete a thorough medical questionnaire and lab review. Approved patients pick a surgery date and location.

Step 3

Travel & Arrival

Fly into your chosen city. Driver pickup at airport, transfer to hotel near the hospital. Bilingual support throughout.

Step 4

Pre-Op Day

Lab work, EKG, and one-on-one consultation with Dr. López. Final surgical plan confirmed.

Step 5

Surgery Day

Laparoscopic SADI-S at an accredited hospital. ~2-hour procedure under general anesthesia.

Step 6

2-Day Hospital Recovery

Inpatient monitoring with ICU-level nursing. Walking same day. Liquid diet starts the day after surgery.

Step 7

Hotel Recovery + Flight Home

1–2 days at the hotel under continued team supervision. Most patients fly home day 5–7.

Step 8

Lifelong Nutritional Follow-Up

Phone check-ins, detailed vitamin schedule, lab monitoring plan. SADI-S patients require strict long-term follow-up.

Recovery

What Recovery Looks Like

Recovery is similar to gastric sleeve in the short term, with a strict lifelong vitamin protocol.

Week 1

Liquid Diet

Clear liquids, then full liquids. Sip slowly. Walk daily. No heavy lifting. Driver returns you to the airport.

Week 2–3

Pureed Foods

Pureed proteins, soft eggs, yogurt. Most patients return to desk-job work. Light activity.

Week 4–6

Soft Foods

Soft proteins, vegetables, soft fruits. Resume most activities. Begin gentle strength training.

Week 6+

Solid Foods & Lifelong Vitamins

Full diet of solid foods (small portions). Daily multivitamin, A, D, E, K, calcium, iron, B12 for life.

Three Locations

Where Dr. López Performs SADI-S

Same surgeon, same standard of care at all three locations.

Tijuana, Mexico

Fly to San Diego, 30-minute drive across the border. Lowest pricing — most popular for US patients.

Tijuana details

Guadalajara, Mexico

Mayo Clinic Network-affiliated hospital. Direct flights from Chicago, Texas, LA. Mexico's medical capital.

Guadalajara details

Puerto Vallarta, Mexico

Pacific coast resort recovery. Direct flights from Canada and major US cities.

Vallarta details

Your Surgeon

Dr. Alejandro López — Medical Director

20 Years · 20,000+ Bariatric Procedures

Dr. López is one of a small group of Mexico surgeons routinely performing SADI-S. Trained at the University of Guadalajara with bariatric fellowship at Cook County Hospital in Chicago, he personally performs every SADI-S case using staple-line suturing for added safety.

“Seeing my patients happy with the results of my work — it will always be the goal of my life.”

Learn More About Dr. López

Real Results

SADI-S Patients — Before & After

Patients with severe obesity (BMI 40+) achieve duodenal-switch-level results with simpler surgery and easier recovery.

“Started at BMI 48 with type 2 diabetes. Down 110 lb at 14 months — diabetes gone, off all meds, finally able to keep up with my kids. The recovery was easier than I expected.”

— Carlos M., San Diego, CA (Verified Patient)

View All Patient Stories

5-Star Reviews

SADI-S Patient Reviews

★★★★★

“BMI 49 with diabetes. SADI-S in Tijuana with Dr. López. Down 100 lb at one year, A1C from 9.2 to 5.4. Best decision of my life.”

— Robert K., Phoenix, AZ

★★★★★

“Sleeve regain after 6 years. Converted to SADI-S in Guadalajara. Down 80 lb at 11 months — way more effective than my original sleeve.”

— Jennifer L., Dallas, TX

★★★★★

“Doctor recommended SADI-S over DS because the recovery is easier. He was right — felt 90% normal at 3 weeks. Down 95 lb.”

— Karen B., Chicago, IL

★★★★★

“Vallarta location for my SADI-S. Hospital was excellent, recovered at the beach. Diabetes gone in days. Down 85 lb at 9 months.”

— Lisa S., Calgary, AB

SADI-S FAQ

Frequently Asked Questions

Is SADI-S safe? +

Yes. SADI-S has been performed worldwide for ~15 years with strong safety data. Because it has only one anastomosis (versus two in classic DS), complication rates are typically lower. Dr. López performs it laparoscopically at Accredited- and COFEPRIS-accredited hospitals with 2-day inpatient monitoring and staple-line suturing.

How is SADI-S different from duodenal switch? +

SADI-S uses a single anastomosis (one connection), while traditional DS uses two. SADI-S is simpler, faster, and easier to revise. Weight-loss outcomes are very similar (~75–80% vs ~80%), though DS has slightly stronger metabolic effects in the long term.

How is SADI-S different from gastric bypass? +

Bypass creates a small pouch and reroutes intestine. SADI-S keeps a sleeve-shaped stomach and does a single intestinal bypass loop — producing stronger weight loss (~75–80% vs ~70%) and stronger diabetes resolution. SADI-S requires more vitamin supplementation than bypass.

How much weight will I lose? +

Most patients lose ~75–80% of their excess weight at 12–24 months — comparable to traditional duodenal switch and significantly more than bypass. Long-term studies show patients maintain 60% excess weight loss at 5+ years.

Will I need lifelong vitamins? +

Yes. Because SADI-S bypasses a section of intestine, fat-soluble vitamins (A, D, E, K) and minerals (calcium, iron, B12, zinc) are absorbed less efficiently. Daily multivitamin supplementation + annual labs are non-negotiable for SADI-S patients.

Can I have SADI-S if I had a sleeve already? +

Yes — sleeve-to-SADI conversion is one of the most common revisions for high-BMI patients with regain after sleeve. The existing sleeve serves as the restrictive component; we add the intestinal bypass loop. Pricing starts at $7,700.

Is SADI-S reversible? +

Easier to reverse or revise than traditional DS because there's only one connection. The sleeve component cannot be undone, but the bypass loop can be reconnected if medically necessary.

How long is recovery? +

Same total trip duration as a primary procedure (5–7 days in Mexico). Most patients return to desk work in 2 weeks and full activity in 4–6 weeks. Recovery feels similar to gastric sleeve in the short term.