ABBOT PARK, ILL. — Zone Perfect is adding Dark Chocolate All-National Nutrition Bars to its line of products. The nutrition bars combine dark chocolate, antioxidants in vitamins C and E and selenium, and 12 grams of protein into one bar.

The new bars come in three flavors — double dark chocolate, dark chocolate almond and dark chocolate strawberry — and are sold individually and in multi-packs of 5 and 12 bars.

The bars may be found nationwide in grocery stores, mass merchandisers and natural food and drug stores.