Your Plant-Based Seltzer Upgrade. Take your seltzer game to the next level by drinking the benefits of pure maple sap. Unlike most seltzers, which are made from demineralized water, contain artificial flavors, and are highly acidic, SAP! Seltzer gives you a nutritional boost that will keep you feeling good all day long.  The difference between our Maple Sap! Seltzer and Maple Sap! Soda is the natural sweetness and nutrient level of the maple sap. The Sap! Soda is slightly concentrated to elevate its taste profile and to increase its nutrient content. 100% pure maple sap straight from the tree Low-Glycemic 46 Naturally Occurring Nutrients Electrolytes: from Magnesium, Calcium, Potassium, and Phosphorus  Prebiotics (Good for Gut Health): from Inulin  Antioxidants: from Polyphenols