I quit drinking soda ~10 years ago, when I started having acid reflux problems and my stomach acid was literally eating my esophagus away All I used to drink was soda, NO water. I quit cold-turkey one day, from soda only to water only. I was a smaller then, only weighing ~160, and I lost 10 pounds in 2 weeks!!! I now take Nexium daily and have no problems, although I do have a soda on occasion...