Hehe this type of topic makes me laugh.
You've chosen a diet/way of life to pursue, which essentially tells you to cut out processed foods, hi-sugar foods etc.
The entire diet/way of life is based on getting back to more natural food, stopping snacking, cutting out junk food etc.
So what happens when you are craving or want a snack? You go out and try these LC bars, snack bars etc which are essentially crutches to hold up your flaky intolerance to no sugar
Its probably just me but haven't you just tried snacking on natural products? Apples, strawberrys that type of thing? They are all sweet but natural. Reading between the lines in the Atkins WOL it seems the entire ethos is moving the human body away from the Western pre-processed mush we are served to something alot more wholesome/natural.
Fruit is the answer to your snack prayers
Just an observation , I just find it ironic that we're trying to kick the snack bars, sweets, soda routine and yet we're not kicking that at all as we're finding alternatives. Its almost like cutting down smoking Marboro by buying Silk Cut
[note: I do indulge in Diet Coke every now and again, not regularly, but I haven't experienced any negative side effects]