Sorry, but I have not tried the lemon-almond biscotti recipe yet. I made the chocolate-hazelnut recipe, which has no icing. I'll try to find the recipe for you all and post it. It may have some fat in it, I can't remember, but not a lot considering it makes a big batch and I usually only have one biscotti with my coffee. No eggs either, so no cholesterol. As for sugar, well, it is a sweet that should be eaten in moderation.