[Devilboy]

Aspartame is perfectly safe physically. It does affect how you perceive taste of course. Your brain links the sweetness of the aspartame with the caffeine high. But remember caffeine alone is addictive anyway so I don't think this is anything to worry about.

[Zenst]

Oh I totaly agree the level of risk from unknown factors later on is less impacting than the effects of worrying about it. Suppose in some ways artificial sweetners are like methadone.