This 30-Day Supply of Atkins Bars & Shakes drops from $80.14 to $74.01 at Walmart.com. Plus, shipping is free. It includes a total of 30 Atkins Advantage bars and 28 Atkins Advantage shakes in your choice of different flavors like Chocolate Chip Cookie Dough, Chocolate Peanut Butter, and French Vanilla. At regular price, it would cost you over $88 to buy these items individually even without the free shipping offer. Sales tax is charged in most states.