The rising tide of low-carb loyalists earn themselves a convenient and creative way to stay in the Zone while dining downtown.. In Short Whether you're an Atkin's devotee, Zone follower or just trying to cut carbs, you'll find easy ways to stick to your diet at this Convention Center cafe. Offerings are fresh, fruit-based smoothies, augmented by protein supplements or herbal "boosters." The quick-turn counter cases also feature hearty salads, bread-free sandwiches (everything from flank steak to vegan tofu) and moderately sweetened desserts. Delivery is available to select areas of downtown with a minimum order.