Following is a quote from an article in US News & World Report
(University of Illinois at Chicago, 2011).

*edit due to copyright* The study was published
online February 4, 2011 in Brain.

This is additional evidence of the lack of phenylalanine, tyrosine and dopamine in MS. Adrenaline and noradrenaline are derived from dopamine.

So, just to recap;Protease (pancreatic enzymes) break down high protein foods and release essential amino acids. Phenylalanine and tyrosine are two essential amino acids derived from "high protein foods" that are found lacking in MS. Phenylalanine breaks down into tyrosine, tyrosine breaks down into dopamine and dopamine breaks down into adrenaline and noradrenaline.

We are not done with phenylalanine just yet. In the next post, I'll show how a lack of phenylalanine would explain two other conditions found in MS.