As an aside, what makes you call Coke Zero "poisonous"? I've never read anything that convinces me aspartame has significant negative health effects, in fact, "the most recent medical review on the subject concluded that 'the weight of existing scientific evidence indicates that aspartame is safe at current levels of consumption as a non-nutritive sweetener.'"
<a href="http://en.wikipedia.org/wiki/Aspartame" rel="nofollow">http://en.wikipedia.org/wiki/Aspartame</a>