Less than 10 calories per serve? Fewer calories than a slice of bread? Fat-free, low-carb, low GI, high-fibre AND gluten-free? Ticking all the boxes, it sounds too good to be true. When the people at Chang’s handed me a packet of their new Lo-Cal Wok-Ready noodles to try telling me how fast sales were growing, I realised this was a new trend. Then when I spotted a similar noodle called Slim Pasta at the supermarket, I knew I had to investigate.