Twelve days of raw food will, the Raw Fairies assure me, change my life. Delivered every morning in brown paper bags, an array of fruit, veg, and sprouted items I never knew existed arrive blended, mashed, and liquefied for my pleasure, along with a cacophony of purifying pills. As a fan of the three Cs (Chocolate, Cheese, Carbs) I'm sceptical. And scared.