Book a Phone Consultation
Weight loss surgery

Roux-en-Y Gastric Bypass

RYGB works with a more profound metabolic and restrictive component than the Sleeve Gastrectomy. Most of the stomach and part of the small intestine is completely bypassed in this procedure. Similar to the sleeve, hunger hormones are reduced and satiety hormones increased. Patients are less hungry and satiated (full) with small amounts of food.

Weight loss is significant for most patients and plateaus over twelve to eighteen months. The average weight loss is 75% of excess weight and weight loss is generally considered more durable than in Sleeve Gastrectomies.

  • Considered the gold standard of weight loss surgery
  • Considered reversible
  • Significant weight loss
  • Maintain good quality of eating
  • Risk of small bowel obstruction
  • Risk of stomach ulcer
  • Risk of micronutrient deficiencies
  • Risk of dumping syndrome
Request an appointment for more information.

Dr Benedict Mackay’s approach is designed not only to perform your surgery but equip you with the tools and information to achieve sustained, long term weight loss.

One of Australia’s most highly trained and qualified bariatric surgeons, Dr Benedict Mackay combines impressive experience with a deep knowledge of modern surgical techniques and a commitment to achieving the very best outcome for patients.

Dr Benedict Mackay
BSc, MBChB, MRCS (England), FRACS
General, Upper GI and Bariatric Surgeon

Professional Associations

Benefits of weight loss surgery.

Weight loss surgery works by increasing your sense of fullness after eating. Reference: 1,2

Expected weight loss in one year is about 20 – 33% of your overall body weight.Reference: 3

People having keyhole surgery have a shorter time in hospital, fewer complications and less time to make a full recovery.Reference: 4,5

An overall Improvement to your quality of life.

Bariatric surgery has been linked to improvements in type 2 diabetes, reduced blood sugar, reduced use of medications, and even resolution of the condition.


Supporting you on your weight loss journey.

If you have any questions, please get in touch.