Can long term use of Coca cola negatively effect your health?

Answer 1

Quite likely yes. Soda is essentially carbonated water and high fructose corn syrup- empty calories. By consuming these empty calories, you either eat less "real food" and consume fewer fruits, vegetables and whole grains, or you end up eating just as much solid food and start taking in excessive calories- either way a bad choice for your body. Soda has been implicated in obesity, Diabetes, and metabolic syndrome, among other conditions. Whether these correlations are also causational (it's possible that heavy soda drinkers just tend to live less healthy lifestyles in general) requires some more evidence, but in the meanwhile, there's still no evidence that soda contains anything useful for your body.