1 in 5 people will be obese by 2025, study says

(CNN)The obesity epidemic has gone global, and it may be worse than most thought.

A new study in The Lancet says that if current trends continue, 18% of men and 21% of women will be obese by 2025.
In four decades, global obesity has more than tripled among men and doubled among women, the study says.
      The paper compared body mass index trends from 1975 to 2014 in 200 countries.
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