Is yellow five considered harmful?

Is yellow five considered harmful? After reading through an older discussion on FunAdvice, I saw somebody mention it could lead to impotence over the long run (yikes!) though the research wasn't extensive...gosh, I hope that's only a bad pun. Is yellow...

5 bad for you then? I've already cut back on my energy drinks out of fear...perhaps I should quit drinking them?

Dear Steve,
I haven't heard that these drinks can cause impotence but taken with some medications may cause problems and in addition to caffeine and sugar, some brands of energy drinks and food bars can have ingredients whose safety or effectiveness hasn’t been tested — things like guarana (a source of caffeine) and taurine (an amino acid thought to enhance caffeine’s effect). Some contain herbal supplements that are not regulated by the Food and Drug Administration (FDA), such as ginseng.
These kinds of ingredients may cause problems for people who are taking certain medications or have a health condition. So play it safe. Always check the label carefully before you eat or drink any kind of energy supplement.
Sue...good luck