Indoles
Indoles are gut-derived organic compounds with a fused benzene-pyrrole structure, acting as systemic signals that regulate health and metabolism. Produced by your microbiome from dietary precursors, they can be beneficial metabolites or biomarkers for disease.
Indoles are a class of organic compounds, structurally defined by a fused benzene-pyrrole ring, widely produced by the intestinal microbiota from dietary precursors like tryptophan. They function as systemic signaling molecules regulating gut health, immune responses, and metabolism, with some serving as essential metabolites and others as potential biomarkers for disease.
What this means in real life
Tryptophan, an amino acid in foods like turkey and cheese, is converted by your body into serotonin, a mood-regulating chemical. This conversion pathway involves indole chemistry, which is why tryptophan-rich foods are sometimes linked to feelings of calm.
What it isn’t
Indoles are not drugs or medications themselves, though some drugs contain indole structures. They are also not exclusively plant compounds—they're produced by bacteria in your gut and are present in animal tissues too.
Commonly misused online
Social media often conflates indoles with 'indole-3-carbinol' (a specific compound in cruciferous vegetables) and makes exaggerated health claims about 'detoxing' or 'hormone balancing' without scientific support.