A high ratio of quinolinic acid to the tryptophan metabolite, 5-hydroxyindoleacetic acid, indicates excessive inflammation due to recurrent infections, excessive tryptophan intake, immune overstimulation, excessive adrenal production of cortisol, or excessive exposure to phthalates.
Higher ratios indicate excessive inflammation due to:
- recurrent infections
- excessive tryptophan intake
- immune overstimulation
- excessive cortisol
- or excessive phthalate exposure.
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