How does Garcinia indica work in the body?

Garcinia indica exerts its effects primarily through hydroxycitric acid (HCA) and garcinol. HCA functions as a competitive inhibitor of the enzyme ATP-citrate lyase, which is involved in fatty acid synthesis. Additionally, garcinol offers potent antioxidant and anti-inflammatory properties by scavenging free radicals and modulating inflammatory pathways. The presence of anthocyanins further supports cellular protection, validating its traditional use for digestive health and cooling the body. (Evidence Level: C/Traditional)

Does kokum interact with prescription medications?

Currently, there are no established severe drug interactions specifically for Garcinia indica in clinical literature. However, because it contains hydroxycitric acid, there is a theoretical potential for interaction with antidiabetic medications or statins by influencing lipid or glucose metabolism. Patients taking blood thinners or diabetes medication should consult a healthcare provider before using concentrated kokum extracts to ensure safety. (Evidence Level: C)

What is the recommended dosage for Garcinia indica?

For general health support, Garcinia indica extract is typically dosed at 300 mg taken twice daily. In traditional culinary and medicinal use, the fruit is consumed as kokum sherbet or dried rind, with quantities adjusted for taste and therapeutic need. Standardized supplements should be taken with water, ideally before meals to support digestive benefits. (Evidence Level: Traditional)

Is kokum safe to consume during pregnancy?

Garcinia indica is generally considered safe when consumed in amounts commonly found in foods, such as kokum sherbet or culinary dishes, during pregnancy. In traditional Goan medicine, it is frequently used to alleviate morning sickness and reduce body heat. However, medicinal doses of concentrated extracts should be approached with caution and discussed with a healthcare provider. (Evidence Level: Traditional)

What are the benefits of kokum for digestion?

Kokum is traditionally used in Konkan and Goan medicine to treat indigestion and heat stroke. The fruit acts as a digestive aid by promoting gastric health and neutralizing acidity. Its mild laxative effect and cooling properties make it a popular remedy for constipation and gastric distress during summer months. These benefits are attributed to organic acids like citric and malic acid found in the fruit. (Evidence Level: Traditional)

Garcinia indica (Garcinia indica)

PubMed-compiled information sheet

This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.

Compiled from 30 PubMed articles · model: gemma4:31b

Summary

Garcinia indica, commonly known as kokum, is a tropical evergreen tree from the Clusiaceae family used in culinary and traditional medicine for its antioxidant and anti-inflammatory properties [PMID:34959738, PMID:42300313].

Background

Garcinia indica (kokum) is a tropical evergreen tree native to the Western Ghats region of India [PMID:34959738, PMID:35933691, PMID:42300313].

Traditional uses

It has been used in traditional medicine to treat inflammation, dermatitis, diarrhea, and to promote digestion [PMID:34959738, PMID:25796441].

Active compounds

Major bioactive compounds include garcinol, hydroxycitric acid (HCA), anthocyanins (cyanidin-3-glucoside and cyanidin-3-sambubioside), and polyisoprenylated benzophenones such as isogarcinol, xanthochymol, and guttiferone isoforms [PMID:34959738, PMID:35933691, PMID:42300313, PMID:22719626].

Mechanism of action

Garcinol acts as a potent histone deacetylase 11 (HDAC11) inhibitor [PMID:33034447] and a histone acetyltransferase (HAT) inhibitor [PMID:33799504, PMID:41303402]. It modulates signaling pathways including NF-κB, STAT3, PI3K/Akt, and MAPK [PMID:27671827, PMID:30471112, PMID:40022821]. Hydroxycitric acid (HCA) inhibits ATP citrate lyase, limiting acetyl-CoA availability for fatty acid synthesis and lipogenesis [PMID:11754536].

Clinical evidence

Evidence DDepression and Anxiety

Fruit rind administered to mice significantly showed antidepressant and anxiolytic effects via the monoaminergic pathway [PMID:28593516]

Evidence CCancer

Garcinol demonstrates anti-neoplastic effects in various cancer types (e.g., breast, colon, prostate) by inhibiting regulatory pathways, though it remains in the preclinical stage [PMID:27671827, PMID:32365899]

Evidence DDiabetic Wound Healing

Garcinol promotes wound healing in diabetic mice by regulating inflammation and inhibiting the PI3K/Akt/NF-κB signaling pathway [PMID:40022821]

Evidence CObesity/Weight Loss

Animal studies indicate HCA suppresses fatty acid synthesis and induces weight loss, though human clinical findings are controversial [PMID:11754536]

Evidence DArthritis

Garcinol Enriched Fraction (GEF) showed effectiveness in treating adjuvant-induced arthritis due to anti-inflammatory properties [PMID:30457056]

Evidence D

Safety & adverse effects

A 13-week dietary study in rats using kokum fat showed no treatment-related adverse events regarding body weight, hematology, or histopathology [PMID:28959530]. However, the full toxicological profile of garcinol remains elusive [PMID:25796441].

Evidence summary

The evidence is primarily based on in vitro studies, animal models, and literature reviews (Levels C and D). While preclinical results for anti-cancer and anti-inflammatory activities are promising, systematic human clinical trials are lacking.

PubMed sources

1.PMID: 22719626 (2012) — (1S,5R,7R,30S)-14-De-oxy-isogarcinol. · Acta crystallographica. Section E, Structure reports online
2.PMID: 34959738 (2021) — Pharmacological Activity of Garcinia indica (Kokum): An Updated Review. · Pharmaceuticals (Basel, Switzerland)
3.PMID: 27671824 (2016) — Gambogic Acid and Its Role in Chronic Diseases. · Advances in experimental medicine and biology
4.PMID: 35933691 (2022) — Bioactive compounds, bio-functional properties, and food applications of Garcinia indica: A review. · Journal of food biochemistry
5.PMID: 33034447 (2020) — Garcinol Is an HDAC11 Inhibitor. · ACS chemical biology

Garcinia indica

Sources & Citations