Ugh. believe me from experience, Soda, whether drunk in large quanties and short term, is NOT GOOD! Believe me! I gained 5lbs just drinking soda for 3 days straight a couple of years back. Plus my breath STANK!
Iv drank more soda then that and never gained a pound from it. N i brush my teeth after so i dont have a problem with that either. You sure you didnt have pizza or supersized meals to go with your soda??