The world's weight problem is growing in countries rich and poor, and in many of them obesity is increasing faster in children than adults.
The research found obesity has tripled in youth and young adults in countries like China, Brazil and Indonesia. That suggests future increases in diabetes and other health problems in much of the world.
The researchers estimated more than 107 million children and 603 million adults can be counted are obese. Together, that's about 10 percent of the world's population.
The New England Journal of Medicine published the report online Monday.
Journal information: New England Journal of Medicine
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