How safe is aspartame? from Nigerian Newspaper

H.J. Roberts, MD enumerates the side effects of taking aspartame, citing  aspartame products as the cause of about 80 per cent of complaints filed to the FDA about food additives, including abdominal pain, dizziness, vomiting or nausea, change in mood, headache, memory loss, diarrhea, change in vision, and fatigue; rhis sugar substitute is linked to other health conditions such as certain cancers, fibromyalgia symptoms, unexplained depression, multiple sclerosis, systemic lupus, psychological problems, and joint pain. 

PKU is a rare genetic disorder wherein the body is not capable of metabolising amino acid, phenylalanine. Since aspartame contains phenylalanine, it is restricted for people with PKU. Aspartame can pose serious risks in people with this rare metabolic disorder.