As the Olympics draw to a close, there is no doubt that the champions of London 2012 will leave a legacy of achievements that inspires large numbers of young people to fulfil their personal potential.
But for 200 million children in the world, a very different legacy is in prospect. These children are severely malnourished. Their height-for-age is substantially lower than that of the reference point for their national population. In some sub-Saharan African countries the proportion of children who are stunted in this way is as high as 50%. We need a new legacy for these children - one that is a global game-changer.
This Sunday, on the same day as the Olympics closing ceremonies, the UK Prime Minister and the Vice President of Brazil will host a very different type of high-level event, bringing experts together to take action on combatting child stunting and malnutrition around the world.
A disastrous burden
Malnutrition is socially and economically disastrous for children and their societies. Malnourished children are more at risk of contracting illnesses. Stunting, and related conditions, is responsible for over 3.5 million deaths of under-fives a year.
And for those not moved by these statistics alone, malnutrition can impair cognitive function leading to lower educational performance and economic productivity. Where childhood malnutrition is at the most alarming levels, the loss to GDP can be as severe as 2% to 3%.