What is Fingerroot?

Fingerroot (Boesenbergia rotunda) is a tropical herb in the ginger family whose finger-like rhizomes have been used in Southeast Asian cuisine and traditional medicine for over a thousand years. It is a staple spice in Thai cooking and features prominently in Indonesian jamu — a traditional herbal wellness system. Beyond the kitchen, it has been prescribed in folk medicine for stomach complaints, oral infections, ulcers, and inflammatory conditions.

How does Fingerroot work?

Fingerroot's properties are thought to come primarily from its rich flavonoid content, especially panduratin A and pinocembrin. These compounds are believed to help reduce inflammation by modulating the activity of inflammatory messengers in the body. They are also thought to have antioxidant activity, may influence enzymes involved in blood sugar control, and appear to disrupt the cell membranes of bacteria and fungi — which may help explain its traditional use for infections. These findings come largely from laboratory and animal studies, and their relevance to human use has not been fully established in clinical trials.

What forms does Fingerroot come in?

Fresh rhizome is most potent and commonly used in cooking. Dried powder retains most bioactive compounds and is easy to add to food or drinks. Standardized extracts (often standardized to panduratin A content) are best for therapeutic dosing. Capsules and tablets offer convenience for consistent supplementation.

Where it comes from:

Fingerroot has been cultivated and used medicinally across Thailand, Indonesia, and Malaysia for well over a thousand years. In Thailand it is called 'krachai' and appears regularly in traditional dishes like fish curry and herbal tonics. Indonesian jamu practitioners have long used it to support digestion, treat flatulence, and address oral infections. In Ayurvedic-adjacent systems of the region, it was used as an aphrodisiac and a remedy for dysentery. It remains a key ingredient in traditional Southeast Asian medicine today.

What does Fingerroot help with?

• Digestive discomfort and bloating: Fingerroot has traditionally been used for centuries to relieve gas, bloating, and stomach cramps. Its active compounds are thought to relax the gut wall and may help reduce inflammation in the digestive tract. In traditional practice, it has been considered particularly useful after heavy or fatty meals, though this has not been confirmed in rigorous human clinical trials.
• Blood sugar and diabetes support: Several of fingerroot's flavonoids are thought to slow the breakdown of carbohydrates by inhibiting enzymes like alpha-glucosidase, which could theoretically reduce post-meal blood sugar spikes. These findings are preliminary and based largely on lab and animal research; there is currently insufficient clinical evidence from human trials to confirm meaningful effects on fasting blood sugar or insulin sensitivity in people with prediabetes or type 2 diabetes.
• Oral infections and toothache: Fingerroot has long been chewed raw in Southeast Asia to traditionally relieve toothache and address mouth infections. Fingerroot is thought to have antibacterial activity against common oral pathogens, including those associated with cavities and gum disease. However, these findings are observational and from lab settings; clinical evidence in humans remains limited.
• Inflammatory conditions: Panduratin A and pinocembrin are thought to act as anti-inflammatory agents by modulating key inflammatory signals in the body, based on laboratory and animal studies. In traditional practice, fingerroot has been used for conditions associated with inflammation, including joint discomfort. Whether these laboratory findings translate to meaningful anti-inflammatory effects in humans has not been established through clinical trials.
• Fungal infections: Fingerroot extracts are thought to have antifungal activity against Candida species. In traditional medicine, it has been used topically and internally to address fungal overgrowth, skin infections, and vaginal candidiasis. These uses are based on traditional practice and preliminary lab evidence; controlled human studies confirming efficacy are lacking.
• Fatty liver (NAFLD): Fingerroot has traditionally been used to support liver health, and its compounds are thought to influence fat metabolism and inflammation in liver cells. Any human data in this area remains very early-stage and observational; there is currently insufficient clinical evidence to support claims of meaningful benefit for non-alcoholic fatty liver disease.
• Exercise performance and muscle recovery: Some preliminary research has explored whether fingerroot extract may influence muscular endurance or exercise-related fatigue, and its compounds are thought to have anti-inflammatory properties that could theoretically support recovery. However, this area of research is at an early stage, and there is not yet sufficient clinical evidence to draw firm conclusions about benefits for exercise performance in humans.
• Respiratory tract infections: Traditional Thai and Indonesian medicine has long used fingerroot to address coughs, colds, and throat infections. Its compounds are thought to have antiviral and anti-inflammatory properties, but whether these translate to meaningful reduction in respiratory symptoms in humans has not been confirmed through clinical research.
• Peptic ulcers and gut lining protection: Fingerroot has traditionally been used to address stomach ulcers, and its compounds are thought to exert a protective effect on stomach lining tissue and could inhibit damage associated with H. pylori and acid exposure. These findings are based on in vitro and animal studies; clinical evidence in humans confirming these protective effects is not yet available.

What can Fingerroot help prevent?

• Post-meal blood sugar spikes in people at risk for type 2 diabetes
• Recurrent oral bacterial infections

Which foods are rich in Fingerroot?

1. Fresh fingerroot rhizome
2. Dried fingerroot powder
3. Thai fish curry and krachai-based dishes
4. Indonesian jamu herbal drinks
5. Fingerroot-infused herbal teas

Practical Tips:

Fingerroot is a culinary herb, so the richest sources are the fresh and dried rhizome itself used in cooking. Pairing fingerroot dishes with black pepper may enhance absorption of its active compounds, similar to the effect seen with other ginger-family herbs.

What are the side effects of Fingerroot?

• Mild stomach upset or nausea at high doses
• Heartburn or reflux in sensitive individuals
• Allergic reactions (rare) in people allergic to the ginger family
• Not recommended during pregnancy due to lack of safety data
• May lower blood sugar more than expected when combined with diabetes medications

Good to know:

Fingerroot has a long history of culinary use and is considered safe at typical food amounts. Supplemental doses are not yet extensively studied in long-term human trials, so caution is advised for ongoing high-dose use. Avoid during pregnancy and breastfeeding due to insufficient safety data.

How much Fingerroot should you take?

• Recommended daily: Standardized extract: 100–300 mg/day (standardized to panduratin A). Dried powder: 1–3 g/day. Fresh rhizome in cooking: 10–20 g/day as culinary use.
• Best time of day: With meals for digestive benefits and blood sugar management. Pre-workout (30–60 minutes before) for exercise performance support.
• With or without food: Take with food to improve tolerability and absorption, particularly for standardized extracts.
• Time to effect: Acute digestive relief: 30–60 minutes. Blood sugar and metabolic effects: 4–8 weeks of consistent use. Exercise performance: 4–8 weeks.
• How long to take it: Safe for continuous use at culinary levels. For supplemental doses, consider cycles of 8–12 weeks followed by a 2–4 week break until longer-term human safety data is available.