Originally Posted by notabook

While I would be the first person to agree that too much of anything is a bad thing, there are pretty substantial scientific studies to back up Aspartame being safe for human consumption. The only verified cases of people getting sick from aspartame are people who have phenylketonuria (PKU). They cannot consume ANY product that contains aspartame because it contains phenylalanine. People who have PKU cannot metabolize phenylalanine, which is an amino acid. If they continually intake aspartame or any other product that contains phenylalanine, they will eventually turn their brains into swiss cheese. For the mass majority of people, aspartame has been shown to be completely safe, even in fairly large doses.