The world is expanding, but unfortunately it's not the global economy whose waistline needs to go up a size.
The rate of worldwide obesity has been marching higher at an extraordinary rate for more than three decades now. According to the Organisation for Economic Co-operation and Development, known as the OECD, fewer than one in 10 people were considered obese in 1980. As of 2011, 19 of the 34 OECD countries have a majority of their population that's either overweight (defined as a body mass index above 25) or obese (a BMI of more than 30).
