The National Center for Biotechnology Information published a paper reviewing Urinary Neurotransmitter Testing. Key scientific claims promoting the validity of the urinary neurotransmitter testing (UNT) model applications are discussed.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3818889/
"Urinary serotonin and urinary dopamine assays are not assays of serotonin and dopamine that have been in the central nervous system. Serotonin and dopamine do not cross the blood-brain barrier."
In other words, having gasoline in your lawnmower's gas can is of no use in starting your automobile.
You can read the conclusion of this paper for yourself, but I can summarize: The data is meaningless for diagnosing
neurological illness.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3818889/
"Urinary serotonin and urinary dopamine assays are not assays of serotonin and dopamine that have been in the central nervous system. Serotonin and dopamine do not cross the blood-brain barrier."
In other words, having gasoline in your lawnmower's gas can is of no use in starting your automobile.
You can read the conclusion of this paper for yourself, but I can summarize: The data is meaningless for diagnosing
neurological illness.
