Serine, an amino acid, is a micronutrient with which many people are unfamiliar. This may be a reason why its role in mental health remains largely underappreciated. Serine’s major role is in the production of neurotransmitters. Specifically, it increases the “feel-good” hormones dopamine and serotonin, but it does so without the corresponding hyperactivity or compulsive behavior that often occurs with drug therapies that stimulate a single neurotransmitter. It also buffers the adrenal response to physical, mental and emotional stress. In doing so, it protects the body and mind against cellular damage from chronically high cortisol. Serine deficiency has been linked to the severity of depression; in one study, the administration of serine reduced combat-related anxiety in a clinical trial on 22 post-traumatic stress disorder (PTSD) patients.
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