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Program Overview

Program Phases

Osteoarthritis Background

Measuring Waist

KicStart™ VLCD

Portion Control


BMI Calculator

Height cm ft in metric/imperial
Weight kg st lb metric/imperial

Your BMI is



BMI is a calculation that is very well suited to assessing the levels of overweight and obesity in large populations. It adjusts for weight and height which allows people of very different body weights and heights to be grouped together into BMI ranges.

It is calculated by: BMI = weight(kg) ⁄ height(m)2

BMI calculations should be used with caution when looking at the health risk of an individual person because BMI calculations will:

  • Overestimate the amount of body fat for people with proportionally high muscle mass e.g.athletes and people of certain ethnicity


  • Often underestimate the amount of body fat for the elderly & people with a physical disability who may have muscle wasting.

Classification of weight by BMI

Classification BMI (kg/m2) Risk of co-morbidities and related disease
Underweight <18.5 Low (but possibly increased risk of other clinical problems)
Normal Range 18.5 – 24.9 Average
Overweight >25.0  
Pre-obese 25.0 – 29.9 Increased
Obese I 30.0 – 34.9 Moderate
Obese II 35.0 – 39.9 Severe
Obese III >40.0 Very severe

Additional Help, Information, Support

Please contact the Osteoarthritis Healthy Weight For Life team on:

Phone: 1800 226 180 (free call)
Email: oa@hwfl.com.au
Web: http://oa.hwfl.com.au

Complaints or Concerns

The Osteoarthritis Healthy Weight for Life program is run by Prima Health Solutions Pty Ltd (Prima) for and on behalf of participating health insurance funds.

If you have a complaint or concern about any aspect of the Program please don't hesitate to contact Luke Lawler, Prima CEO and Scientific Director directly, on

Phone: 1800 226 180 (free call)
Email: luke@primahealth.com.au

About Prima Health Solutions

PRIMA is a quality certified health care organisation (AS/NZS ISO 9001:2015) that is dedicated to the research, development and remote delivery of specialised obesity related chronic disease management and prevention products and programs.

The PRIMA products and services include KicStart™ VLCD, the Osteoarthritis Healthy Weight for Life program, the Type 2 Diabetes and Heart Healthy Weight for Life™ programs.