My guess is that those health-conscious people either just drink normal soda in smaller amounts, or don't drink it at all. The people who are drinking lots of d

My guess is that those health-conscious people either just drink normal soda in smaller amounts, or don't drink it at all. The people who are drinking lots of diet soda aren't exactly health-conscious; we're people who have a bad sweet tooth and have found a "cheat" to satisfy it without getting fat (or fatter than we already are). Everyone I know who drinks diet soda drinks a ton of it, and it's not that we're very stupid health nuts who just don't realize that diet soda is still not as healthy as water. We're unhealthy nuts just making small compromises to limit the fallout from our bad diet decisions. :)