WFP is calling for a billion global citizens who have enough food to eat to take action to help feed the billion people on the planet who go to bed hungry each night.

For the first time in history one out of every six people doesn’t know how to fill a humble cup with food each day. This is essentially destabilising,” said WFP Executive Director Josette Sheeran as world leaders discussed the next steps in the fight against hunger at the World Food Summit in Rome.

“We’re appealing to a billion people, a billion citizens who have enough to eat, to help us fill this cup. Let’s take citizen’s action and end hunger now,” she said, noting that if a billion people gave one euro or a pound a week, we could feed all the hungry people in the world

' Billion for a Billion ' is built around online participation. And it's not just about individuals. The private business sector, with its potential to reach thousands of clients and employees, also has an important role.

As well as donating, supporters can also help fight hunger by spreading the word, using the multiple tools available to web users today.

It could be as simple as posting the ' Billion for a Billion ' video on your Facebook page or tweeting to a friend the fact that a child dies every 6 seconds of hunger-related causes.