Diet Coke Exposed: What Happens One Hour After Drinking Diet Coke

My point is such - there's not even one research that shows direct causation. In cases of artificially sweetened drinks there's a lot of useless material.

Research done on people that are obese or have diabetes will not show the same insulin response pattern. So it's really hard to tell why Coke is bad for you, except for the obvious problems.

Too much caffeine is bad. There's also the issue of higher acidity that can hurt your teeth. Beyond that it's really easy to point more hurtful foods: donuts, pies, french fries and so on.

I've really did some research on this topic and bottom line is really simple: have a coke if you want to, just limit yourself to one or two a day at most.