Receive FREE BFree Gluten Free White Sourdough Bread. A soft, wholesome white sourdough loaf. The ideal snack or sandwich bread, at only 91 calories a slice. If you want to get this freebie, click on the “Get FREE” button, enter your contact information, purchase a loaf of BFree Gluten Free White Sourdough Bread at your local Walmart, and they’ll reimburse you for the cost of one loaf via Venmo or Paypal.