Aspartame is an artificial sweetener which is found in numerous foods. It has been approved by the US Food and Drug Administration (FDA) in 1981. Many experts and scientists believe that it should never have been approved by the FDA as they believe that aspartame can be toxic and people suffer from aspartame allergy. The aspartame has therefore been surrounded by a great deal of controversy as its defenders believe that this aspartame allergy does not even exist.