The World Health Organization descibes obesity as a global epidemic - with hundreds of millions of people suffering from it worldwide.

In New York, one of many US states where fatty and conveniently cheap fast food restaurant chains are a major cause for the country's giant obesity rates - organisations are using various ways to make healthy meals more accessible to the public.

Experts say the government must subsidise healthy foods like fruits and vegetables, instead of popular fast food companies, to better combat the problem.

Al Jazeera's Scott Heidler reports from New York.