Whoops! YIKES! Did not know that! I suggest you read these links.
http://www.sweetpoison.com/aspartame-information.html
http://www.mercola.com/article/aspartame/hidden_dangers.htm
http://www.holisticmed.com/aspartame/adverse.txt
http://nccn.net/~wwithin/aspartame.htm
http://www.aspartamesafety.com/
http://aspartametruth.com/aspartamedotorg/