Atkins launched a new line of Iced Coffee Protein shakes in Vanilla Latte and Café Au Lait flavors, offering 15 grams of protein and one gram of sugar per 16.9 oz. bottle, available at Walmart at Target. The brand also rolled out a Walmart-exclusive Energy Protein Shake line in Creamy Caramel and Creamy Chocolate flavors, containing 30 grams of protein and B vitamins. Both lines contain as much caffeine as an 8 oz. cup of coffee.