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Southern Weight loss & Laparoscopy

Who are we?

Southern Weight Loss is the surgical practice of Mark Grant, a specialist in bariatric and metabolic surgery with over ten years’ experience.

We provide care across Dunedin, Otago, South Canterbury and Southland, with clinics in Dunedin, Oamaru, Invercargill and Wanaka.

We understand that choosing weight loss surgery is not a simple decision. Most patients have already tried multiple approaches to lose weight, often with limited long-term success.

Obesity is a complex, chronic condition— and effective treatment requires more than a single intervention.

That’s why our approach is built around a close-knit multidisciplinary team.
Your clinician, dietitian and psychologist work together—meeting regularly, sharing insights, and aligning your care at every stage.

This means:

  • Consistent advice
  • Coordinated care
  • A clear, long-term plan

We focus not just on weight loss, but on helping you achieve sustainable health outcomes with ongoing support.

OUR GOAL

Is to improve the understanding and acceptance of the role that bariatric surgery plays in the management of obesity. While at the same time helping our patients achieve their goal of a healthier and fuller life.

OUR sERVICES

We offer the full complement of weight loss procedures.

Weight Loss Surgery

Bariatric surgery has been shown to be the most effective treatment for obesity in suitable patients

General Surgery

Gallbladder surgery
Anti-reflux surgery
Hernia repair

Resources

Understanding Obesity
FAQs
Weight Loss Blog

REQUEST AN APPOINTMENT

OUR Team
Mark Grant
Mark Grant
Surgeon

Mark is an Upper Gastrointestinal surgeon who has a particular interest in the management of obesity and cancers of the stomach and oesophagus.

Helen Gibbs - Our Dietician
Helen Gibbs
NZ Registered Dietitian

Helen is a NZ Registered Dietitian, who has a specialist interest in weight management and Type 2 diabetes.

making a healthier life a reality

To find out more call us on
03 464 0970

FAQs

Who is a good candidate for weight loss surgery?

Weight loss surgery, also called bariatric surgery, is typically considered for people with severe obesity. Generally, this means having a body mass index (BMI) of 35 or more, or a BMI of 30 or more with serious weight-related health conditions like diabetes or sleep apnea. However, qualifications can vary, so consulting a doctor is crucial.

How does weight loss surgery work?

There are different types of weight loss surgery, but they generally work by restricting the amount of food you can eat or bypassing some of your intestines, reducing nutrient absorption.

How much weight can I expect to lose?

With proper diet and exercise, weight loss surgery can help you lose a significant amount of weight. However, the exact amount varies depending on the individual and the type of surgery.

Is weight loss surgery safe?

Some risks come with weight loss surgery, like getting an illness, bleeding, or leaks. But improvements in laparoscopic methods have made the treatment safer in the last few years. It’s important to talk about the risks and benefits with a skilled surgeon.

What are the long-term considerations after surgery?

After weight loss surgery, it’s important to stick to healthy food and regular exercise for the rest of your life. It may also be necessary to take extra vitamins and minerals over time to make sure the body absorbs the nutrients properly. Follow-up visits with your doctor are very important for keeping an eye on your progress and any problems that might come up.