Some people use Quest Bars, which can be ordered on-line, our GNC sells them by piece so you can try the many flavors. Ingredients are somewhat "more natural" less chemicals, but still processed. Also consider taking nuts, small individual waxed cheeses or string cheese, natural beef jerkies, etc.

Dr Atkins would likely think the bars just fine, since the company he founded produced them while he was alive. The 2002 edition of his book, includes ad/coupon for Advantage Bars, Endulge candy, Atkins Bake mix used in recipes, etc. Though I would like to think he might have changed his mind about the artificial sweeteners and wheat, and reformulate the products by now, maybe embracing some of the Paleo ideas.