Atkins Advantage® Chocolate Peanut Butter bar is one of the most popular bars with our customers as much for its nutritional content as for its familiar chocolate peanut-butter cup flavor. It uses high-quality protein sources like casein, whey isolate and soy. The combination of fast-absorbing whey and slow-absorbing casein is a good idea, since that makes the bar a satisfying between-meal snack that will keep hunger at bay and let you get on with work or play. In keeping with the Atkins tradition, the Atkins Chocolate Peanut Butter bar has a high protein content, 19 grams. That's more than you'd get by eating 3 whole eggs. Atkins balances the protein content with a lower amount of fat and almost no carbs or sugars (1g). This ratio of high protein, moderate fats and low or no carbs and sugars is key to the success people have had with the Atkins' approach to weight loss. And since no one gets enough fiber, everyone will appreciate the 7 grams of fiber in each bar, about what'd you'd get in a bowl of raisin bran cereal, and 25% of your daily requirement.