Serotonin details
What Serotonin shows
Serotonin is best known as a neurotransmitter involved in mood regulation, but the vast majority of your body's serotonin is actually produced and used in the gut, not the brain, and blood serotonin levels don't meaningfully reflect brain serotonin activity or mood. Clinically, blood serotonin testing is used mainly to help evaluate carcinoid tumors, a rare type of neuroendocrine tumor that can overproduce serotonin and cause a distinctive set of symptoms (flushing, diarrhea, wheezing) known as carcinoid syndrome — not as a test for depression, anxiety, or other mood conditions.
Tests that include Serotonin
Serotonin is a neurotransmitter involved in mood regulation, digestion, and sleep. It is primarily measured to evaluate for serotonin-producing tumors such as carcinoid tumors, or to investigate symptoms related to serotonin imbalance.
- Serotonin Measures serotonin, a neurotransmitter and hormone; blood levels are used mainly to help evaluate carcinoid tumors rather than mood.
Serotonin is a neurotransmitter involved in mood regulation, digestion, and sleep. It is primarily measured to evaluate for serotonin-producing tumors such as carcinoid tumors, or to investigate symptoms related to serotonin imbalance.
- Serotonin Measures serotonin, a neurotransmitter and hormone; blood levels are used mainly to help evaluate carcinoid tumors rather than mood.
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