I use shirataki noodles all the time and they cause me no problems. If you decide to use them make sure you get the ones that are 100% glucomannan not the tofu ones. It is the glucomannan noodles that are all fiber. They are not part of Dr Westman's diet and the amount of fiber in them will effect your total carb count but not your net carb count. So, if you are following Dr Westman's diet strictly (which is the only way to follow it) then as Janet says, the answer is "no".

Jean