I know it's hard to believe, but science has found yet another reason why soda is even worse for you than we thought. The most common soda coloring is dangerous to your health. One kind of caramel coloring, which gives your soda that lovely golden-brown hue, contains 4-Mel, which can cause cancer. Consumer Reports found some sodas with levels of 4-Mel high enough to require a warning, and yet it was not listed in the ingredients. So that's super.
The good news is that you can have your brown soda and drink it, too. There are other kinds of caramel coloring that do not contain 4-Mel, and soda companies can and should change theirs. But it also makes me wonder -- why do we need our cola to be brown in the first place?