Why children in some countries are taller than in others: diet and environment bigger factors than genetics, study finds

A recent study published in medical journal The Lancet suggests that, while genetics play a part in the height of a person, nutrition and the environment can play a bigger role. Within a few generations, the height of migrant descendants typically catches up to the height of non-migrant children in their new country.

The study, which came out this month, analyses the physical growth of children in different countries by pooling height and body mass index data from 193 countries.