No male population on Earth grew taller last century than Iranian men, who gained 16.5 centimetres between the 1896 and 1996 birth cohorts, while the same study found places where people ended up shorter than those born decades earlier

What the report says

A century of better nutrition and healthcare transformed Iranian bodies more dramatically than anywhere else on Earth, while some populations actually shrank. The post No male population on Earth grew taller last century than Iranian men, who gained 16.5 cent…