None in Wave 1, but in Wave 2 you can use a small amount of honey, enjoy the natural sugars that appear in foods such as fruit, and 3 times a week you can have a piece of real dark chocolate
However, I don't see anything showing how much to limit honey. The only reference I've found just says it will be useful to sweeten some of the Wave 2 recipes.
The reference to sugar says to avoid sugar, particularly if it is in the first 5 ingredients on the list. So by that, I would assume that if a food does have sugar and it's way down on the list, and has very few sugar grams, then it would probably be ok, but you'd need to pay close attention so we don't fall back into old habits.