The Average American Drinks 45 Gallons of Soda a YearCasey Chan6/27/11 11:40am240EditPromoteGo to permalinkWe're doomed. Banished to obesity. According to Beverage Marketing Corporation, the average American drinks 44.7 gallons of soda every year. That's about 487 cans or 286 bottles or 85 2-liters of that carbonated syrup every year. How are we alive?