I don't have the metabolic breakdown path for Aspartame, but I do know
that it is a dipeptide of aspartic acid and phenylalanine, two rather
common amino acids.
Breakdown to formaldihyde? Sounds like what happens to ethanol in the
liver. Alcoholics tend to have less capacity to make a key enzyme in
this pathway...
Let mw know when you get your data online fia ftp or www. Its
interesting.
Doug