What the evidence says. Early or small human trials; promising but not yet conclusive.
Nutrition per serving 1/2 cup pulp (120 g)
Water37.7 g31%
Sugars46.6 g39%
Fibre6.1 g5%
Other carbs22.3 g19%
Protein3.4 g3%
Fat0.7 g1%
Other3.2 g3%
What's in one serving, by weight — average composition (USDA).One serving as % of the adult daily requirement (FDA Daily Values). The bold outer ring = 100% of a day's needs.
Tamarind (Tamarindus indica) is a fruit used for may modestly lower triglycerides and blood pressure (small, short, underpowered rcts in dyslipidemic/hiv adults). NutriDex grades the human evidence as Preliminary. Human evidence for tamarind is preliminary and dominated by small, short, often single-site trials. A 2025 4-week dose-response exploratory RCT in adults with HIV and high triglycerides (n=50) found that 30% tamarind-pulp juice (600 mL/day) cut triglycerides by about 17% (-39.8 mg/dL), while a 10% dose lowered systolic blood pressure by ~7 mmHg; neither dose changed cholesterol, and the trial was explicitly underpowered/exploratory. A separate 2006 clinical study of dried pulp (~15 mg/kg) reported reduced total and LDL cholesterol and diastolic pressure. The most reproducible findings are non-dietary: diet-controlled studies show tamarind ingestion increases urinary fluoride excretion (potentially aiding fluorosis), and several randomized studies show tamarind seed polysaccharide eye drops match hyaluronic acid or HP-Guar for dry eye. Antioxidant, anti-inflammatory, antidiabetic and hepatoprotective effects are reported mainly in cell and animal models, not confirmed in humans. Overall the cardiometabolic signals are promising but not established; larger, well-powered trials are needed before health claims are warranted.
Purported Benefits
✓May modestly lower triglycerides and blood pressure (small, short, underpowered RCTs in dyslipidemic/HIV adults)
✓May reduce total and LDL cholesterol (one early human trial of dried pulp)
✓Increases urinary fluoride excretion, potentially helping mobilize fluoride in endemic-fluorosis areas (diet-controlled human studies)
✓Seed polysaccharide (TSP) eye drops relieve dry-eye symptoms comparably to hyaluronic acid or HP-Guar
✓Antioxidant and anti-inflammatory activity from polyphenols (largely preclinical)
Culinary: about 10-30 g of pulp per day (paste, juice, or chutney). Cardiometabolic trials used 600 mL/day of 10-30% tamarind-pulp juice or ~15 mg/kg dried pulp; dry-eye and joint benefits used non-dietary extracts (TSP eye drops, TamaFlex capsules), which are not interchangeable with culinary fruit.
Active Compounds
Organic acids: tartaric acid (dominant), malic and citric acidFlavonoids: catechin, epicatechin, procyanidins, taxifolinPhenolic acids: caffeic, ferulic, p-coumaric acidsTannins and proanthocyanidinsSeed polysaccharide (xyloglucan, mucomimetic 'TSP')Soluble dietary fiber and pectinMinerals: magnesium, potassium, iron, phosphorusB-vitamins: thiamin, niacin, riboflavinSaponins and alkaloids (minor)
Safety & Cautions
⚠
Generally recognized as safe as a food. The high tartaric/malic acid content makes the pulp very acidic and potentially erosive to tooth enamel and irritating in reflux. Tamarind has documented drug-interaction potential: it increased the bioavailability of aspirin and ibuprofen and may raise exposure to other drugs. It can enhance fluoride mobilization, usually beneficial but relevant in those with heavy fluoride exposure. Tamarind is high in sugar (about 47 g per 120 g) and calorically dense, so portions matter for diabetes and weight goals. Seed/pulp allergy is rare but possible; concentrated extracts and herbal-blend products (eye drops, TamaFlex, suppositories) are clinically distinct from culinary fruit. Educational only — always check with your doctor or pharmacist before combining Tamarind with any medicine.
Tamarind is most often taken for May modestly lower triglycerides and blood pressure (small, short, underpowered RCTs in dyslipidemic/HIV adults), May reduce total and LDL cholesterol (one early human trial of dried pulp), Increases urinary fluoride excretion, potentially helping mobilize fluoride in endemic-fluorosis areas (diet-controlled human studies), Seed polysaccharide (TSP) eye drops relieve dry-eye symptoms comparably to hyaluronic acid or HP-Guar. Tangy pod pulp rich in polyphenols and tartaric acid
Does Tamarind work — what does the evidence say?
Preliminary evidence. Early or small human trials; promising but not yet conclusive. Human evidence for tamarind is preliminary and dominated by small, short, often single-site trials. A 2025 4-week dose-response exploratory RCT in adults with HIV and high triglycerides (n=50) found that 30% tamarind-pulp juice (600 mL/day) cut triglycerides by about 17% (-39.8 mg/dL), while a 10% dose lowered systolic blood pressure by ~7 mmHg; neither dose changed cholesterol, and the trial was explicitly underpowered/exploratory. A separate 2006 clinical study of dried pulp (~15 mg/kg) reported reduced total and LDL cholesterol and diastolic pressure. The most reproducible findings are non-dietary: diet-controlled studies show tamarind ingestion increases urinary fluoride excretion (potentially aiding fluorosis), and several randomized studies show tamarind seed polysaccharide eye drops match hyaluronic acid or HP-Guar for dry eye. Antioxidant, anti-inflammatory, antidiabetic and hepatoprotective effects are reported mainly in cell and animal models, not confirmed in humans. Overall the cardiometabolic signals are promising but not established; larger, well-powered trials are needed before health claims are warranted.
What is the typical dose of Tamarind?
Culinary: about 10-30 g of pulp per day (paste, juice, or chutney). Cardiometabolic trials used 600 mL/day of 10-30% tamarind-pulp juice or ~15 mg/kg dried pulp; dry-eye and joint benefits used non-dietary extracts (TSP eye drops, TamaFlex capsules), which are not interchangeable with culinary fruit.
Is Tamarind safe? Any cautions or side effects?
Generally recognized as safe as a food. The high tartaric/malic acid content makes the pulp very acidic and potentially erosive to tooth enamel and irritating in reflux. Tamarind has documented drug-interaction potential: it increased the bioavailability of aspirin and ibuprofen and may raise exposure to other drugs. It can enhance fluoride mobilization, usually beneficial but relevant in those with heavy fluoride exposure. Tamarind is high in sugar (about 47 g per 120 g) and calorically dense, so portions matter for diabetes and weight goals. Seed/pulp allergy is rare but possible; concentrated extracts and herbal-blend products (eye drops, TamaFlex, suppositories) are clinically distinct from culinary fruit.
How many studies support Tamarind?
NutriDex cites 12 sources for Tamarind, graded "Preliminary".
Cite this page
APA
Peh, D. (2026). Tamarind (Tamarindus indica): Benefits, Dosage, Side Effects & Evidence. NutriDex — The Supplement Research Compendium. Retrieved 16 Sept 2026, from https://nutridex.info/s/tamarind
BibTeX
@misc{nutridex_tamarind,
author = {Peh, Daryl},
title = {Tamarind (Tamarindus indica): Benefits, Dosage, Side Effects \& Evidence},
year = {2026},
howpublished = {NutriDex --- The Supplement Research Compendium},
url = {https://nutridex.info/s/tamarind},
note = {Reviewed by Dr Daryl Peh, MBBS Singapore, MMed FM. Accessed 2026-09-16}
}
For medical claims, citing the underlying primary studies linked above is preferred. NutriDex is an educational reference, not medical advice.