Atkins is not a fad diet. Not entirely sure why it's being brought up here, but it isn't, and it is highly unlikely to "nearly kill" anyone. Plus, having read a lot around the subject, I'm pretty convinced that Atkins, or something very like it, is "healthy eating", and all this bilge about healthy grains and piles of fruit every day is misguided and harmful, and will be proven so in the end.
Sorry to hijack your thread, Miley, but I just wanted to say that. As for the bars, they can be very useful on occasion but do watch to see if they stall you or upset your tummy.