The Australian and New Zealand Obesity Society (formally known as the Australasian Society for the Study of Obesity or ASSO) was established in 1991.

ANZOS is a scientific organisation of medical practitioners, dietitians, scientists and other health care professionals interested in obesity research, treatment or public health initiatives directed at the prevention of obesity.

The Society has over 250 members throughout Australia, New Zealand and the Pacific Region.

Obesity as a Disease - This statement from ANZOS outlines the Society's position on the status of obesity as a disease. This statement and the background information that explain the considerations that were taken into account in the formulation of this view are endorsed by Obesity Australia.

On November 24, 2017 Ministers across the nation had an opportunity to discuss and support a recommendation that, where sugars are added as a separate ingredient to a food product, information must be provided on the label of the product to identify added sugars.  This is the letter we sent to all Ministers attending the meeting. 

BMI calculator

BMI Calculator

Body Mass Index, or BMI, is a simple index of weight-for-height that is commonly used to classify underweight, overweight and obesity in adults. It is defined as the weight in kilograms divided by the square of the height in metres (kg/m squared).

Exhibition Centre dusk

ANZOS - MDO 2018 joint meeting

The ANZOS - MDO 2018 Annual Scientific Meeting will be held in conjunction with the Breakthrough Discoveries in Metabolism, Diabetes and Obesity Program at the Melbourne Exhibition & Convention Centre from the 16th – 18th October 2018, Victoria.

dietary intake

Dietary Intake Assessment

The Australasian Child & Adolescent Obesity Research Network (ACAORN) is interested in identifying tools for assessing dietary intake in children and adolescents in Australia and New Zealand.


ANZOS Membership

Any medical graduate, scientist or health professional with interests in the field of overweight and obesity, is eligible for nomination to become a member of ANZOS.

Physical Activity Assessment v3

Physical Activity Asessment

The Australasian Child & Adolescent Obesity Research Network (ACAORN) is interested in guiding Australian and international researchers in the process of selecting appropriate measurement tools.


Australian Obesity Management Algorithm

Obesity is a complex and multi-factorial chronic disease with genetic, environmental, physiological and behavioural determinants that requires long-term care.