European countries dominate height in both genders, as the the top four tallest countries for men are the Netherlands, Belgium, Estonia and Latvia, while for women they are Latvia, the Netherlands, Estonia and the Czech Republic.
The smallest country for men born in 2014 was East Timor (160cm), while for women it was Guatemala (149cm).
The UK rose from 57th to 38th in the world over the course of the 100 years.
Lead researcher professor Majid Ezzati from the school of public fealth at Imperial College London said:
This study gives us a picture of the health of nations over the past century, and reveals the average height of some nations may even be shrinking while others continue to grow taller. This confirms we urgently need to address children and adolescents' environment and nutrition on a global scale, and ensure we're giving the world's children the best possible start in life.
Our study also shows the English-speaking world, especially the USA, is falling behind other high-income nations in Europe and Asia Pacific. Together with the poor performance of these countries in terms of obesity, this emphasises the need for more effective policies towards healthy nutrition throughout life.