A bulging problem

Obesity can have a severe impact on health, increasing the threat of developing Type 2 diabetes, some cancers and heart and liver diseases. And in recent years, governments all over the world have been concerned with heading off an obesity pandemic.

"It's time to have global attention focus on the fight against obesity - which is becoming a global issue as more developing countries suffer the obesity pandemic," says Jamie Oliver, British chef and food activist known for his culinary television shows and cookbooks.

Oliver has been working to improve unhealthy diets, especially in schools, in the United States, United Kingdom and Australia.