Redefine Weight Loss Programs

A powerful online learning platform using up-to-date medical research to guide you to weight loss success.

Choose a Program

The Redefine online weight loss programs were created to help people who have battled weight gain, the inability to lose weight or keep it off all their lives. It was created  by Dr Marlene Tham, a doctor, who after many years of weight loss consulting, understands weight loss and what people need to have weight loss success. These weight loss programs aim to provide solution focused and evidence based strategies which cover all aspects of weight management: mind, diet, exercise and medicine. Find out more.

Our Team

Dr Marlene Tham

Dr Marlene Tham

Weight Loss Doctor & Obesity Researcher

Dr Terence Chong

Dr Erica Pong

Erica Pong



Telstra Business Awards City of Melbourne

Nutrition & Exercise

Mental Health

online CBT

Participants give our online CBT Program the thumbs up!

Our 10 week online Redefine Cognitive Behaviour Therapy (CBT) weight loss program has been approved by participants in a study over 26 weeks, as being acceptable, time-saving, effective and convenient. This study has been...

Your Health


Coronavirus (COVID-19) and being overweight

Obesity related conditions such as diabetes, heart disease and cancers have been identified as risk factors likely to worsen Coronavirus (COVID-19) infections. This has been reported by the Centers for Disease Control and Prevention...

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