Aspertame is safe BUT ONCE IT REACHES 100 degrees F it breaks down into formaldyhyde and other neuro toxins.

The FAA forbids commercial airline pilots to drink nutrasweet colas due to the vision problems, seizures and stupor that has been known to happen under the influence of injesting a nutraswee beverage that at one time was allowed to get too hot in the sun, refgridgerated and later consumed.

google nutrasweet neurotoxins.