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  • Gastric Balloons

    Clinically-proven weight loss - without surgery.

    • Our innovative gastric balloon programs provide the benefits of clinically-proven, effective weight loss without the need for surgery.
    • A gastric balloon is a completely reversible procedure which takes about 20 minutes under sedation. When combined with our 12 month program our patients lose 10-30kg
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    Non Surgical
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    20 min Procedure
  • Australia's Leading Clinic

    We are Australia's leading practice in non-surgical weight loss

    • Established in 2005, we are Australia's longest running practice specialising in endoscopic (non-surgical) weight loss procedures. Our doctors are amongst the most experienced in the world and are regularly called upon to train and educate other doctors as well as leading research into new devices and techniques.
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    • 12+ Years Experience
    • 1500+ Patients
    • Cutting-edge Research
  • The BMI Experience

    We're with you – every step of the way.

    • Our patients achieve maximum weight loss through a coordinated program of regular consultations with our in-house specialists and dietitians.
    • Beginning with a bulk-billed initial consultation, every step of your journey is tailored to enable you to achieve your weight loss goals. Regular and ongoing one-on-one consultations with our specialists and dietitians help keep you on track and feeling healthy.
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    Bulk-billed initial consutation
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    Tailored diet advice from Accredited Practising Dietitians
    Proactive management of your weight loss journey with BMI Active
  • Industry Leading Technology

    BMI Active – The latest technology to help your journey

    • BMI uses the latest web-enabled scales and Fitbit devices to proactively monitor your weight loss between consultations.
    • All of our programs include a free Fitbit Aria web-enabled scale so that we can proactively manage your weight loss. Our specialists and dietitians will monitor your weight loss in real time, giving us the flexibility to provide tailored advice at every step.
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  • Achieving Weight Loss Goals

    Clinically-proven weight loss - without surgery.

    • We’ve helped thousands of people lose more than 18,000 kg utilising clinically-proven weight loss techniques, the latest devices and technology, and our team approach to weight loss.
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Formerly known as Gastric Balloon Australia, The BMI Clinic team specialise in non-surgical and surgical weight loss techniques. Our Sydney clinic, established in 2005, is the largest specialist practice of its kind in Australia. Our specialist doctors are world leaders in endoscopic management of weight loss and are regularly called upon to train other medical specialists in the use of intragastric balloon systems, along with newer techniques such as the endoscopic sleeve gastroplasty (ESG). The BMI team recognises that there is no one-size-fits-all approach in weight loss and as such we regularly utilise a number of different techniques, including:

  • Intragastric Balloon (Orbera® & Spatz3®)
  • Endoscopic Sleeve Gastroplasty (ESG)
  • Laparoscopic Gastric Bypass
  • Laparoscopic Gastric Sleeve
  • Aspire Assist®

To maximise your weight loss, all of our programs include a personalised lifestyle retraining program, supervised by your doctor and a team of clinical experts including nurses, dietitian and, psychologists who work together with you to help achieve your weight loss goals.

Gastric Balloon In Stomach
Endoscopic Sleeve Gastroplasty
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12 Month Gastric Balloon Program starting from

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The Intra Gastric Balloon is a non-surgical procedure available for weight loss. A soft, expandable, silicone balloon is placed inside the stomach via a camera that enters through the mouth. Once inserted into the stomach, the empty balloon is filled with sterile saline (salt water), occupying a large part of the stomach, creating a feeling of fullness.

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With programs starting from $6,950, a gastric balloon is an affordable weight loss option for most patients.



Over the past 12 years we have assisted thousands of people lose an average of 10-30kg with a gastric balloon.



Placement (and removal) of the intragastric balloon takes approximately 20 minutes in a day clinic and does not involve surgery - it is considered to be a minimally invasive procedure.



The Intra Gastric Balloon remains in the stomach for a period of up to 12 months and is then removed in the same way it was placed.

Media Stories

  • Daily Telegraph Logo

    Gastric balloons: The new non-surgical weapon to help lose weight

    HIS brother is the king of makeup, but when it came to his own weight there was no way for Emmanuel Perdis to disguise the fact he had ballooned to 134kg. The co-founder of Napoleon Perdis, who would regularly spoil himself by overeating, knew drastic action was needed but didn’t want to follow the lead of his brother by having a gastric band surgically implanted. Instead, the 42-year-old tur ...

  • Daily Telegraph Logo

    Stomach balloon helps lift off weight

    The latest weapon in the war against obesity is a balloon which is inserted into the stomach and filled with saline solution and dye. It stays there for six months and, combined with a sensible diet and exercise, promises to help you shed between 10kg and 17kg. Gastroenterologist Dr George Marinos, who works at Prince of Wales Hospital and runs the Gastric Balloon Clinic in Bondi, is pioneering ...

  • Herald Sun Logo

    Balloon helps lift weight off

    Six months ago Michelle Aliste could not fit into clothes sold in standard dress shops but after she had a gastric balloon inserted by a gastroenterologist she's dropped four dress sizes from size 18 to size 12 and entered a fun run. "It's just amazing, my whole wardrobe has changed," said Ms Aliste, who lost 18kg after the $6000 operation. Gastroenterologist Dr George Marinos, who works at Syd ...

  • Daily Telegraph Logo

    How Emanuel Perdis’ fight with food changed his life

    I’VE spent most of my life detesting what I see when I look in the mirror. I struggled with my weight as a kid, so my father took me to a paediatrician.
    As soon as he found out I was being raised by my Greek grandmother, it was like, “Forget it; game over!” My grandmother adored us and she showed it by feeding us. She would serve me four eggs for breakfast. She’d cook lamb cutlets ...

  • PRNewswire Logo

    BAROnova® Announces the Results of ENDObesity® I Clinical Trial

    BAROnova, Inc., recently presented data from their ENDObesity I clinical trial at the annual Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) meeting. During the study, which was conducted in Sydney, Australia, obese subjects with a BMI ranging from 30-50 kg/m2 were treated with BAROnova's weight-loss device, the TransPyloric Shuttle® (TPS®). After six months, patients a ...