Chebulinic acid

PhytochemicalTanninBest before bedBest taken away from food

What is it

Chebulinic acid is a hydrolyzable tannin (ellagitannin) found principally in Terminalia chebula (haritaki) and Terminalia species fruits. It is one of the main bioactive polyphenols studied in these botanicals.

Evidence for 2 uses

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Antioxidant / anti-inflammatory

Mixed Evidence

Preclinical evidence; no human trials on isolated chebulinic acid.

Antiviral (preclinical)

Mixed Evidence

In vitro activity shown; no clinical evidence.

How it works

Chebulinic acid is a polyphenolic ester of gallic acid units. In preclinical studies it shows antioxidant, anti-inflammatory, antimicrobial, and antiviral activity, including reported inhibition of HIV reverse transcriptase and SARS-CoV-2 main protease in vitro. Mechanisms include radical scavenging, modulation of inflammatory cytokine production, and inhibition of viral enzymes. After ingestion, ellagitannins are hydrolyzed to ellagic acid by gut microbiota, then metabolized to urolithins, which are likely the systemic active species. Human clinical data on isolated chebulinic acid is limited.

Dosage

No established dose. Chebulinic acid is consumed through Triphala or haritaki, not as an isolated supplement at well-defined doses.

When and how to take it

Triphala is traditionally taken between meals at bedtime.

2 commercial forms

Compare the main delivery options and what they’re best suited for.

Terminalia chebula (haritaki) extract

Standard form of intake via Ayurvedic preparations.

Source plant for chebulinic acid.

Triphala

Traditional Ayurvedic formula.

Triple combination with amla and bibhitaki.

Safety

Generally well tolerated as part of haritaki/Triphala. High doses may cause loose stools or stomach upset due to tannin and astringent effects.

Who should be cautious

Avoid in pregnancy and breastfeeding due to limited data on isolated compound. Caution with iron supplements.

Interactions

Tannins may reduce iron absorption. Theoretical interactions with antiviral and antidiabetic medications.

Food sources

Haritaki fruit (T. chebula)

Amount
varies
%DV
—

Frequently asked questions

Is chebulinic acid the same as Triphala?⌄

No. Chebulinic acid is one polyphenol found in Triphala's haritaki component.

Should I supplement with isolated chebulinic acid?⌄

It is rarely sold pure. Whole-herb Triphala is the more common form.

References

Chebulinic acid on Wikidata — Wikidata link

Chebulinic acid (ChEBI:3584) — ChEBI link

Chebulinic acid (PubChem CID 452240) — PubChem link

Chebulinic acid on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Chebulinic acid (PubMed search) — PubMed link

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.