In 1997 obesity was first recognised as a global problem when the World Health Organisation first agreed to discuss the issue. Researchers had discovered startling information about an increase in the number of overweight people in the developing world. The consultation was led by a group calling itself the International Obesity Task Force which was led by Professor Philip James. He's been telling Claire Bowes how he had to persuade the WHO that areas of the world struggling with malnutrition were now also suffering from obesity.PHOTO: BBC Copyright.