I thought I posed this earlier, but, here goes again:
I presume the references to "no sugar" mean "cane" or "refined" sugar and not "natural sugars" as might be found in honey, rice syrup, etc?
All the commercial "treats" such as cookies, contain one or both.
Sugar is not good as they can't metabolize it like humans can, it just accumulates. I don't use any sugar, nor do I eat anything that has sugar in it . I do use monkfruit if I am baking & need a sweetener. I don't eat anything with any type of chemicals or processed food, not do my birds, occasional cookies with no sugar and choc with no sugar, nothing artificial..yes they do once in a while