A classical Ayurvedic formula of three dried fruits in equal parts — amalaki (Emblica officinalis), bibhitaki (Terminalia bellirica) and haritaki (Terminalia chebula). It is a blend by definition, not a single-herb extract.
Triphala is used in Ayurveda mainly for bowel regularity, and it does contain anthraquinone-type compounds with laxative activity. Human trials are few, small and mostly Indian, and because the ratios of the three fruits differ between manufacturers, two products called triphala are not necessarily the same preparation. Imported Ayurvedic products also carry a well-documented heavy-metal contamination problem.
Traditionally equal parts of the three fruits; commercial ratios vary and are rarely disclosed — a product without this marker may not resemble what was studied.
Also known as
Triphala churna, Three fruits
Regulation: Sold in the US as a dietary supplement with no pre-market review. Ayurvedic imports have been the subject of repeated public health advisories over lead, mercury and arsenic content.
What the research used
The amounts, forms and durations published trials of Triphala actually administered.
These are the amounts published trials administered — not a recommendation, and not a dose to copy. Trial participants were screened, supervised and given a characterised preparation. What is in a retail bottle is frequently not what was studied, and the amount that suits one person is not general advice.
Studied for Bowel regularity and digestive symptoms
500–2000 mg
Not enough
Powder or tablet, usually at night · 2–12 weeks
Trials are small and use different fruit ratios, and traditional practice uses several grams of powder rather than capsules. The laxative effect is dose-dependent and product-dependent.
Studied for Dental plaque and gingivitis, as a mouthwash
6 %
Limited
Aqueous triphala mouth rinse · 2–12 weeks
Small dental trials, several without adequate blinding. This is a rinse concentration rather than a swallowed dose.
This is general information about food, not medical advice. It cannot diagnose, treat or replace guidance from a clinician who knows your history.
When it was taken
Each window says whether a trial compared it against an alternative, or whether it is convention and pharmacology. Most timing advice is the second kind.
None of the timings below were directly compared in a trial. They reflect how the research happened to dose, or what the pharmacology implies — which is not the same as a timing being better.
🌙Evening
Not enough
Traditionally taken at night so the laxative effect arrives in the morning. That is practice-derived reasoning, not a tested comparison.
Timing was not directly compared. This reflects convention or how the compound behaves in the body, not a trial showing this window works better.
The evidence in depth
Best supported: Not enough
What each association actually rests on, and the papers behind it. A rating describes the state of the research, not how promising the supplement sounds. How we rate evidence.
There is not enough human research to say triphala changes blood lipids. Reported effects come from small Indian trials without independent replication.
Not enough evidence. Not enough human research to say anything useful yet.
Evidence is limited for triphala and constipation. The laxative activity of its components is plausible and well described chemically, but the controlled human trials are few, small and use inconsistent preparations.
What may be going on: Terminalia species contain anthraquinone glycosides with stimulant laxative activity, alongside tannins.
Not enough evidence. Not enough human research to say anything useful yet.
No source is attached to this association yet, so it is rated not enough evidenceby default. It is listed because people commonly ask about it — not because there is evidence for it.
Things to know
Interactions, contraindications and dose limits, most serious first. Concentrated extracts interact with medication in ways the whole plant does not, so this section carries more weight here than it does on a food page.
Worth knowing
Heavy metals in Ayurvedic imports
Testing of imported Ayurvedic products, including formulas sold as triphala, has repeatedly found lead, mercury and arsenic, sometimes at levels that caused clinical poisoning. In rasa shastra preparations metals are added deliberately. Third-party testing is the only practical safeguard.
Avoid
Pregnancy and breastfeeding
Stimulant laxative activity and traditional cautions make triphala inappropriate in pregnancy, and safety while breastfeeding is unknown.
Worth knowing
Laxative effect and dependence
Diarrhoea, cramping and dehydration occur at higher doses, and prolonged use of stimulant laxatives is a recognised route to dependence and electrolyte disturbance.
Interaction
Absorption of other medicines and glucose lowering
Faster transit and high tannin content can reduce absorption of medicines taken at the same time, and triphala components have been reported to lower blood glucose.