fat free sugar free

  1. thenotsoskinnyminny

    SW- rules fat free or sugar free.. confused HELP!

    Hi all, on SW and doing g well, but I'm really struggling with the difference between sugar free and fat free on slimming world and calculating syn values (mainly with jelly and Yoghurt). I know as a rule of thumb, 20 calories is about 1 syn... but if something is fat free but still has...