主播大秀

Food prices are falling substantially for the first time in years, but what is driving them lower and what does it mean for the long-term sustainability of food supplies? On World Food Day, Ed Butler speaks to the former chairman of Northern Foods Lord Haskins, food retail consultant Marc de Speville and food strategist at Rabobank Justin Sherrard.

Also in the programme, an appropriately tasty treat - is there money to be made out of milkshakes made from the fruit of the Baobab tree? Ed travels to Malawi to find out.