How is there not a slam dunk answer to whether this 50+ year old incredibly popular ingredient is ok for us or not?
For others (like me) aspartame is not OK in some cases. I can either drink aspartame and ingest no sugar. Or I can drink sugary drinks. Both are fine.
But if I have both a diet coke AND sugary sweets -> my intestines produce gases that are considered a war crime even by Putin.
No idea why, but it just happens.