In 1985 I was a marine stationed at Quantico Va. I drank NutraSweet.
I was an analyst and I had to use my brain power to make it thru the day. I noticed that when I drank NutraSweet I would have trouble remembering. It took a while to figure it out. I was lucky. I quit drinking diet soda and my memory power returned. I told few people about this. Some did not believe me. I did so I never drank the stuff again. Now 12 years later you have explained to me what that was all about. I was lucky.