Why are the Dutch the tallest people in the world?

The average Dutch man is 181.2 cm and the average Dutch woman 167.9 cm — first among 200 countries for both sexes, about 12 cm (men) and 11 cm (women) above the world average. Among 19-year-olds in 2019 the figures were 183.8 cm and 170.4 cm.

It wasn't always so. In the mid-1800s the Dutch were among Europe's shorter populations — conscripts averaged around 165 cm. Heights rose almost continuously through the 20th century, and in a study of cohorts born 1896–1996 the tallest people of the century were Dutch men born in its last quarter. [1] Genes don't change that fast — conditions do.

What we know: childhood nutrition (dairy is a big part of the Dutch diet), health and hygiene (fewer childhood infections), relatively equal incomes (average height is sensitive to how the poorest children grow), and possibly natural selection: in a study of about 94,000 people in the northern Netherlands, taller men born 1935–1967 had more children on average. The study involved no genetic testing, and its authors see selection as a factor alongside good living conditions. [2] Height is highly heritable within a population — about 80% in twin studies [3] — but that figure says nothing about why countries differ.

The challengers. Among 19-year-old men: Netherlands 183.8, Montenegro 183.3, Estonia 182.8, Bosnia and Herzegovina 182.5, Iceland 182.1 cm. Young Montenegrin men are 4 cm taller than all Montenegrin men; in the Netherlands the gap is 2.5 cm — the Balkans are catching up.

👉 Where would you rank in the Netherlands? heightscore.com/en

Method: country means from NCD-RisC age-19 height series by birth cohort, weighted with UN WPP 2024 age structure, with mild shrinkage after 40. See heightscore.com/en/methodology.

Sources

  1. NCD Risk Factor Collaboration (2016). A century of trends in adult human height. eLife 5:e13410. Mid-1800s: Dutch conscript records 1830–1913, University of Groningen study.
  2. Stulp G., Barrett L., Tropf F. C., Mills M. (2015). Does natural selection favour taller stature among the tallest people on earth? Proceedings of the Royal Society B 282: 20150211.
  3. Silventoinen K. et al. (2003). Heritability of adult body height: a comparative study of twin cohorts in eight countries. Twin Research 6(5).

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