Aspartame is made up of three chemicals: aspartic acid, phenylalanine, and methanol. The book Prescription for Nutritional Healing, by James and Phyllis Balch lists aspartame under the category of "chemical poison." That's exactly what it is.
Some side effects of consuming aspartame to much is:
Loss of taste
As you can see, aspartame is serious business.
Please go to http://articles.mercola.com/sites/articles/archive/2011/11/06/aspartame-most-dangerous-substance-added-to-food.aspx to learn more about this dangerous chemical.