A newly published study is destined to reignite the decades old controversy about aspartame's safety, or lack thereof. Aspartame converts to formaldehyde and formic acid, which are highly toxic to the body, but the nervous system in particular.
If you were told to ingest a biologically alien synthetic chemical whose presence on this planet did not predate 1976, and whose structure is only a few atoms away from the deadly pesticide DDT, and you knew that not only were there no long term human safety studies performed on it, but that it had been already proven in tests to have over a dozen serious adverse health effects, would you consume it?