Hi, i have seen in some of the recipes that there is toffee muller light as an ingredient. I had the impression I could only eat fat free natural or greek yoghurt and sweeten to taste? However, I realise that muller lights are fat free but when I look at the sugar it blew me away. . . does this not defeat the object of Dukan. But then I have seen it as one of the tolerateds....?1 Confused.com ?? Any advice would help. Thanks