Cabbage has improbably become this year’s most fashionable vegetable. But is this a genuine nutritional redemption story or simply another cycle of food hype, asks Hannah Twiggs Sign up to IndyEat's free newsletter for weekly recipes, foodie features and cookbook releases Get our food and drink newsletter for free Get our food and drink newsletter for free Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice I t seems that