By Matthew Fort
It had to happen. It is diet time, detox month, to pay for all those Christmas potatoes roasted in Nigella's goose fat. A period of healing through eating ... chips. Chips? Chips!? Sadly, not those fried in vegetable oil or even extra virgin olive oil or (best of all) beef dripping. No, those oven-ready bits of what appear to be extruded polystyrene are the latest vegetable to be given the nod from the health police.