(Reuters) – Obesity is imposing an increasingly heavy burden on the world’s population in rich and poor nations alike, with almost 30 percent of people globally now either obese or overweight – a staggering 2.1 billion in all, researchers have said. The researchers conducted what they called the most comprehensive assessment to date of one of the pressing public health dilemmas of our time, using data covering 188 nations from 1980 to 2013. Nations in […]