Barqs Zero Sugar Root Beer has bite! Do you know why? Well, its unique Barqs Zero Sugar spice is what makes this root beer soda truly original and truly tasty. Root beer is a bold choice for bold people who know what they want. Barqs Zero Sugar is all that and zero calories, making it a delicious zero sugar root beer option. Barq's Zero Sugar Root Beer has always had bite. 120 years of it to be exact. Inspired by its southern roots, Barq's Zero Sugar Root Beer aims to bottle the essence of colorful, bold and creative people for enjoyment in every sip. So, grab a 20oz bottle and put it to the taste test.