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A study has shown that for the first time in history, more people are dying from too much unhealthy food than from too little healthy food.

Shu Wen Ng is an Associate Professor in the Department of Nutrition at the Gillings School of Global Public Health, and told ÃÛÑ¿´«Ã½ Radio 5 live why this is such an important study and what governments across the world can do to combat the obesity problem.

This clip is originally from Up All Night on Tuesday 13 June 2017.