Ice-cream made from potatoes, pasta that lived in the sea, microscopic fungi - what will we be eating next? Half of us are cutting down on meat, but suppose we all gave it up: what would the world be like? And what about fats that don't have any calories - a dream come true or something of a nightmare? Live from a medieval castle, Sarah Greene and Simon Mayo are joined by chefs and dinner guests for a foray into food. With Nikki Spencer , Sankha Guha and Judith Burns. Producer Katharine Everett Series editor David Paterson
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