AUSTRALIA has the most rapidly growing obesity rate among developed nations, according to an international report.
The Organisation for Economic Co-operation and Development report found obesity rates in Australia had been increasing faster than any other advanced nation for the past 20 years.
The report, which analysed 33 countries, found one in two people were overweight in Australia and the proportion was expected to rise a further 15 per cent in the next 10 years.
Australian experts called on the Government to tackle the problem.
The World Health Organistaion (WHO) collaborating centre for obesity prevention director Prof Boyd Swinburn said the Government needed to ban junk food advertising and label food with traffic lights: green for those low in fat, salt and sugar, and red for those that were high.
Obesity Policy Coalition adviser Jane Martin called for taxes on junk food and subsidies on healthy foods to make healthy choices easy.