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Poor diet may be
there is an
gap of 20cm between the world's tallest and shortest
. Researchers analysed the Body
Index (BMI) of
of children and teenagers
. They looked at their height and
. The world's tallest
were 183cm and lived in the Netherlands; the
were 160cm and lived in East Timor. European children were the tallest. The shortest lived in Asia,
America and East Africa.