ZRT Laboratory

ZRT has determined that it’s crucial to look at downstream metabolites of peripheral neurotransmitters to get a more accurate systemic pattern.

Genetics, environment, chemicals, medications, gut dysbiosis and nutritional deficiencies are some of the factors that can impact neurotransmitter production. When things are out of balance, the nervous system begins to compensate, neurotransmitter imbalances start to develop and this can then lead to neurological or psychological symptoms. Testing can help clarify what is going on.

Common neurotransmitter-related causes of health issue often involve scenarios such as these:

Anxiety & Depression

Peripheral neurotransmitter imbalances can give us some clues around  anxiety and depression, specifically glutamate (can cause panic attacks), PEA, histamine, serotonin, epinephrine and norepinephrine.

Chronic Fatigue

Chronic fatigue is often due to an imbalance between excitatory and inhibitory neurotransmitter activity.


These issues often involve dysregulated GABA, dopamine and serotonin.


Insomnia is often linked with imbalances in glutamate, histamine, dopamine, serotonin and GABA.


These issues are often linked with imbalances in dopamine, norepinephrine, GABA and serotonin.

This test can be ordered with or without a hormone add-on.

Sample Report

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