These findings confirm our very worst fears - that poor nutrition is capable of seriously damaging a child's life chances before he or she even sets foot in a classroom.
We have made huge progress in tackling child deaths, but having a quarter of the world's children at risk of under-performing at school will have grave consequences for the fight to end global poverty.
World leaders must take the opportunity to change this in London on June 8th and commit to tackle the scourge of malnutrition for good.
We want to see funding for countries suffering the highest burden so that millions of children's lives can be transformed.
– Save the Children Chief Executive Justin Forsyth