The UK prime minister, David Cameron, is hosting a high level summit on global nutrition and food security on 12 August, the last day of the London Olympic Games, in a bid to create a lasting international legacy.

A new report by Save the Children indicates that the number of hungry children worldwide has risen for the first time in a decade.1 It warns that a “significant rise in acutely malnourished children threatens impressive progress in cutting child mortality and getting more children into school.”

The findings come amid a “backdrop of rising food and fuel prices, which is making it much harder for families to afford to …