New research looking at the link between national income, inequality and body size reveals a higher rate of adolescent girls are obese in wealthier countries.
The University of Auckland study, led by Associate Professor Rinki Murphy, looked at 200,000 children in 36 countries including New Zealand, Australia and the UK.
It analysed height and weight data from over 77,000 children aged 6-7 and over 205,000 adolescents aged 13 or 14, from 19 and 36 different countries, respectively.
It discovered obesity rates differed by either the gross national index or the Gini index.
Young people from countries with a higher gross national index had a higher median BMI compared to children from less wealthy countries.