The average height of Vietnamese youths has shown remarkable improvements, reaching 168.1cm for 18-year-old males in 2020, up 3.7 cm from 2020, and 156.2cm for 18-year-old females, up from 154.8cm, according to the National General Nutrition Survey for 2019-2020, which was released by the Health Ministry’s National Institute of Nutrition (NIN) on April 15.