Over half of all adults will be overweight or obese by 2050, study shows

Without a serious change, the researchers estimate that 3.8 billion adults will be overweight or obese in 15 years - or around 60 percent of the global adult population in 2050. AP - JoNel Aleccia

Nearly 60 percent of all adults and a third of all children in the world will be overweight or obese by 2050 unless governments take action, a large new study said Tuesday.

The research published in the Lancet medical journal used data from 204 countries to paint a grim picture of what it described as one of the great health challenges of the century.