SIOS - Sydney's Largest Weight Loss Practice

Start Your Weight Loss Journey

At the Sydney Institute for Obesity Surgery (SIOS) we value our patients and are committed to working with them to achieve their long term weight loss success.

To start Book Your Free Consultation

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How Can we Help ?

What are Your Options ?

Do You Need Weight Loss Surgery ?

Depending on your individual weight and health, you may be a candidate for weight loss surgery. Calculate your "body mass index" in order to determine whether you are a candidate for weight loss surgery.

Start Your Weight Loss Story

Patient Journey

Initial Consultation Free

  • Listen
  • History
  • Options
  • Advice

Pre & Post Operative Program

  • Dietician and Nutrition
  • Psychologist
  • Meet Your Team
  • Preoperative Planning


  • Procedure
  • Recovery
  • Post Op Care

After Care Programe

  • Dietician / Nutrition
  • Exercise Physiologists
  • Counselling & Life Coaching Support
  • Comprehensive Support

Will Weight Loss Surgery Work For Me?

There are a number of widely accepted criteria which make a patient suitable for Bariatric or Weight Loss Surgery.

  • International Federation for the Surgery of Obesity and Metabolic Disorders
  • The American Society for Gastrointestinal Endoscopy
  • American Society for Metabolic and Bariatric Surgery
  • Obesity surgery society of australia and newzealand
  • Society for surgery of the alimentary