One fifth of the world's population is obese by 2025

london - A fifth of all adults in the world are seriously overweight in 2025. In a country like Britain or even a third obese, according to a study which published the medical journal The Lancet.

,, We have changed in the past forty years of a world where underweight more than twice as many people than obesity, a world in which more people extremely overweight than underweight, '' said researcher Majid Ezzati from Imperial College London Friday by The Guardian.