A new study says that the world has grown more obese people than underweight ones from 1975 to 2014. The number of obese adults across the globe has surpassed the underweight ones during the past four decades, a new study says. The study, which was carried out by a team led by researchers from Imperial College London, compared body mass index (BMI) from 1975 to 2014 across over 19.2 million adult participants...