If this won't make you think before you use artificial sweeteners, I don't know what will!
Aspartame breaks down into aspartic acid (natural), phenylalanine (natrual), and methanol (TOXIC wood alcohol). Methanol is used for windshield washer fluid. Methanol, according to my Organic Chemistry Professor wayyy back when, makes you BLIND. He told me of his early grad school days when he'd put methanol in his windshield washer tank and used it... The paint melted off of his car!!!