More than one in three Welsh teenagers are overweight or obese, a new study has found.
Research found that 38% of 14 year olds in Wales are overweight or obese.
This compares to 40% of 14 year olds in Northern Ireland and 35% in both England and Scotland.
Leading children's doctors said the study was further evidence of the "childhood obesity crisis" gripping Britain.
The researchers from University College London examined data from more than 10,000 teenagers who were taking part in the Millennium Cohort Study - a study tracking the lives of thousands of young people born at the turn of the century.