Paragraph 1
Poor diet may be behind an
height gap of 20cm between the world's tallest and shortest children. Researchers from a London
conducted an
of the Body Mass Index (BMI) of schoolchildren and teenagers around the
. This involved looking at the
and weight of
of youngsters. The world's tallest
were 183.8cm and lived in the Netherlands; the shortest, at 160.1cm, lived in East Timor. Teenagers in
were the tallest. On
the shortest children lived in Asia,
America and East Africa.