Disgusted? Most people don't realize how easy it is to gain weight from drinking sugary sodas, juice drinks, sport drinks and sweetened tea and coffee drinks. Just one 20-ounce bottle of soda can pack 250 calories and more than 16 teaspoons of sugar. Is the lemon-flavored iced tea any better? Not by much with 210 calories and 14½ teaspoons of sugar. Sugar-sweetened beverages add hundreds of calories to your diet each day. Don't drink yourself fat. Try water. It's good.