Hilary Blue wrote: > It was once told to me, but i cant remember by whom , and so cant vouch for its > authenticity or accuracy - that the aspartame which sweetens most diet drinks is > a very large molecule, like propteins, and therefore, in much the same way would > intefere with the absorption of the sinemet. Now, I last > studied biochemistry 30 years ago (gosh , did biochemistry exist then?) so > this explanation makes a sort of sense to me, but i have no way of knowing if > it is really so! NO! It ain't so! Actually Aspartame is a dipeptide that hydrolyses (breaks up) into two simple amino acids. These are the ones that compete with L-dopa (levo dopamine), another amino acid. Amino acids are relatively small, much smaller than a bread basket(?). Michel