Dear kids,
I'm not sure if this niche of the web is hip enough to be frequented by you regularly, but if you do, please read on carefully -- you might be able to learn something today:
Back when I was in your age (no, I'm not that old; basically it happened 6-8 years ago), I was absurdly anal on Coke products of all flavours: Coca-Cola, Sprite, Diet Coke and everything else. People (primarily my parents) kept on warning me that drinking liters of sugared water every day would kill my teeth, but I happily kept ignoring them. Puberty, baby!
But half a dozen years later, it looks like my parents were right: The impact of coke products has not only been penetrating me with recurring toothaches for the last two months, but it also cost me something like 90 EUR for dental fillings. I don't have a real problem with the money, but toothaches are literally a pain in the ass.
Conclusion: Listen to uncle Martin and keep your hands off sugared water, kids!