How would you like a natural alternative to root beer soda? Mix seltzer (also known as soda water, sparkling water or carbonated water), and SweetLeaf liquid stevia Sweet Drops Sweetener Root Beer and pour over ice. My favorite soda, in the past, was root beer. I’m happy that there is a natural alternative that is not harmful to your health. I buy my SweetLeaf online at Vitacost.com. They have many other flavors if root beer isn’t your thing! I encourage you to try it if you’re trying to kick the soda habit!