LC Foods Marshmallow Fluff Mix LC Foods Marshmallow Fluff is diabetic friendly, low carb, sugar free, high fiber and gluten free. LC-Marshmallow Fluff Mix;#174 is the fluff you have been waiting for...remember the fluffernutter? Here is your chance to relive your childhood memories without the sugar or carbs. Enjoy Marshmallow Fluff in your favorite low carb hot cocoa, spread some on your favorite low carb breads, rolls or crackers with preserves. Easy to make and ready to eat. You will need eggs and vanilla. Makes 2 cups of Marshmallow Fluff.