Saada governorate, the most heavily bombed region in Yemen, has the world’s highest stunting rates among children, affecting eight out of 10 in some areas, it said.
Stunting – where a child is short for their age – is another sign of chronic malnourishment and has irreversible consequences for both physical health and cognitive function.
Other governorates – Hodeida, Taiz, Hajjah and Lahej – were also badly affected after 20 months of war, UNICEF said.