# Karanja (Pongamia pinnata)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/karanja
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-20
**Evidence Score:** 2 / 10
**Category:** Ayurveda
**Also Known As:** Pongamia pinnata, Indian Beech, Honghe, Karanj, Millettia pinnata, Derris indica, Pongam Oil Tree

## Overview

Karanja (Pongamia pinnata) is an Ayurvedic medicinal plant whose primary bioactive compound, karanjin, is a furanoflavonoid that exhibits [anti-inflammatory](/ingredients/condition/inflammation) and [antioxidant activity](/ingredients/condition/antioxidant) by modulating oxidative stress pathways. Its seed oil and extracts have been used traditionally in Ayurveda for skin disorders, wound healing, and rheumatic conditions, though robust human clinical evidence remains limited.

## Health Benefits

• [Anti-inflammatory](/ingredients/condition/inflammation) potential based on in vitro studies of karanjin derivatives (PMID: 33257003) - evidence quality: preliminary
• Traditional Ayurvedic use for various ailments - evidence quality: traditional only
• [Antioxidant](/ingredients/condition/antioxidant) properties attributed to flavonoid content (karanjin 0.57-1.75%, pongamol 0.25-1.27%) - evidence quality: theoretical
• Potential anti-cancer effects from flavonoid compounds - evidence quality: preliminary/theoretical
• No human clinical trials available to substantiate any health benefits

## Mechanism of Action

Karanjin, a furanoflavonoid present at 0.57–1.75% in seed extracts, inhibits pro-[inflammatory](/ingredients/condition/inflammation) mediators including cyclooxygenase (COX) enzymes and suppresses NF-κB signaling, reducing downstream cytokine production such as TNF-α and IL-6. The flavonoid fraction also scavenges [reactive oxygen species](/ingredients/condition/antioxidant) (ROS) by donating hydrogen atoms to free radicals, measurably reducing lipid peroxidation in vitro. Additionally, pongamol and other chalcone derivatives found in Pongamia pinnata may contribute to [antimicrobial](/ingredients/condition/immune-support) activity by disrupting microbial membrane integrity.

## Clinical Summary

Current evidence for karanja is almost entirely preclinical; in vitro studies (e.g., PMID: 33257003) demonstrate that karanjin derivatives suppress [inflammatory](/ingredients/condition/inflammation) markers in cell culture models, but no large-scale randomized controlled trials in humans have been conducted. Animal studies using Pongamia pinnata seed oil have reported wound-healing acceleration and anti-arthritic effects at oral doses of 200–400 mg/kg, but direct translation to human dosing is uncertain. A small number of traditional-use observational reports support topical karanja oil for skin conditions such as scabies and eczema, yet these lack control groups or quantified outcomes. Overall, the evidence base is preliminary and insufficient to establish efficacy claims in humans.

## Nutritional Profile

{"macronutrients": {"protein": "Not significant", "fiber": "Not significant"}, "micronutrients": {"vitamins": "Not significant", "minerals": "Not significant"}, "bioactive_compounds": {"flavonoids": {"karanjin": "0.57-1.75%", "pongamol": "0.25-1.27%"}}, "bioavailability_notes": "Bioactive compounds such as karanjin and pongamol have been identified, but their bioavailability in humans is not well-studied."}

## Dosage & Preparation

No clinically studied dosage ranges are available as human trials are absent. Traditional uses do not specify standardized forms, extracts, or dosing. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Karanja seed oil and extracts are considered potentially toxic when ingested in large quantities, as the seeds contain bitter resinous compounds including karanjin and pongamol that may cause gastrointestinal irritation, nausea, and vomiting at high doses. Topical application is generally better tolerated, though contact dermatitis has been reported in sensitive individuals. No formal drug interaction studies exist, but given its COX-inhibitory activity, theoretical interactions with NSAIDs or anticoagulants such as warfarin cannot be excluded. Karanja is contraindicated in pregnancy due to traditional reports of uterine-stimulating activity and the absence of safety data; it should also be avoided in children and individuals with liver conditions due to uncharacterized hepatotoxic potential.

## Scientific Research

No human clinical trials, RCTs, or meta-analyses for Karanja (Pongamia pinnata) were found in the research. The only PubMed entry (PMID: 33257003) discusses synthesis of karanjin derivatives with [anti-inflammatory](/ingredients/condition/inflammation) properties in vitro, noting poor clinical translation due to solubility issues.

## Historical & Cultural Context

In the Indian Ayurvedic system, Karanja (Pongamia pinnata) has been used to treat various ailments for centuries, with seeds and oil employed medicinally. Historical applications also include use as a pesticide, organic fertilizer (N 3.2-3.7%, P 0.22-0.23%, K 0.65-0.68%), and biogas production in traditional South Asian practices.

## Synergistic Combinations

Turmeric, Boswellia, Ginger, Ashwagandha, Neem

## Frequently Asked Questions

### What is karanjin and what does it do in the body?

Karanjin is a furanoflavonoid found at concentrations of 0.57–1.75% in Pongamia pinnata seed extracts. It primarily inhibits NF-κB signaling and COX enzyme activity, reducing the production of pro-inflammatory cytokines like TNF-α and IL-6, while also scavenging reactive oxygen species to exert antioxidant effects. These actions have been confirmed in cell-based studies, though human pharmacokinetic data remain unavailable.

### How is karanja oil used traditionally in Ayurveda?

In Ayurvedic practice, karanja (referred to as Karanja or Naktamala) seed oil has been applied topically for centuries to treat skin disorders including scabies, eczema, leprosy-related skin lesions, and fungal infections. It is also used in formulations for wound healing and to relieve joint pain associated with rheumatic conditions. Internally, bark decoctions have been used for digestive complaints and fever, though internal use carries greater safety concerns than topical application.

### Is karanja safe to take as an oral supplement?

Oral ingestion of karanja seed extracts is not established as safe at this time; the seeds contain bitter resinous compounds that can cause nausea, vomiting, and gastrointestinal distress, and potential hepatotoxicity has not been fully characterized. No standardized oral dosage has been validated in human clinical trials, making dose guidance unreliable. Topical use of the oil is more commonly practiced and is generally better tolerated, though patch testing is advisable due to the risk of contact dermatitis.

### Does karanja have proven anti-inflammatory effects in humans?

No human clinical trials have directly tested karanja or karanjin's anti-inflammatory effects with sufficient rigor. In vitro studies, including research cited under PMID 33257003, show that karanjin derivatives inhibit inflammatory mediators in cell culture, and animal models have demonstrated reduced inflammatory markers at doses of 200–400 mg/kg. Until well-designed randomized controlled trials in humans are completed, anti-inflammatory efficacy cannot be confirmed for clinical practice.

### Can karanja interact with medications like blood thinners or anti-inflammatory drugs?

No formal pharmacokinetic drug interaction studies for karanjin or Pongamia pinnata extracts have been published in peer-reviewed literature. However, its in vitro COX-inhibitory activity suggests a theoretical risk of additive effects when combined with NSAIDs such as ibuprofen or naproxen, potentially increasing gastrointestinal side effects. A theoretical interaction with anticoagulants like warfarin is also plausible given flavonoid-mediated effects on platelet aggregation, and caution is warranted until interaction studies are conducted.

### What is the difference between karanja oil and karanja powder supplements?

Karanja oil is extracted from the seeds and is traditionally used topically for skin conditions, while karanja powder or capsules contain the whole plant material or concentrated extracts for oral use. Oil-based forms may have different bioavailability and application methods compared to dry powder formulations. The choice between them depends on whether you're targeting systemic effects (powder/capsules) or localized skin concerns (oil).

### Is karanja safe to use during pregnancy and breastfeeding?

Karanja is not recommended during pregnancy or breastfeeding due to insufficient safety data and traditional uses that suggest uterine stimulant properties. No clinical trials have established safe dosing for pregnant or nursing women, and the active alkaloid karanjin has not been adequately studied in these populations. Consult a healthcare provider before using karanja if you are pregnant, planning pregnancy, or breastfeeding.

### How strong is the scientific evidence for karanja's health benefits compared to traditional claims?

While karanja has a long history in Ayurvedic medicine, most scientific evidence is limited to in vitro and animal studies, with very few human clinical trials published. The preliminary research on karanjin derivatives shows anti-inflammatory and antioxidant potential, but evidence quality remains theoretical or early-stage for most claimed benefits. More rigorous human studies are needed to validate traditional uses and establish efficacy for specific health conditions.

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