What is Gambhārī?

Gambhārī is the root, bark and fruit of a tree called Gmelina arborea. In English it is often called white teak or beechwood. It is a single herb in Ayurveda, not a blend.

It is best known as one of the ten roots in the Dashamoola group. On its own, healers give it for fever, swelling, weak digestion and urinary problems. The ripe fruit is used as a sweet tonic.

Here is the short answer on evidence. Gambhārī has a long record in Ayurveda. Human trial data on it is close to zero, so a long history of use is not proof that it works.

How does Gambhārī work?

No one has shown how Gambhārī works in the human body. What follows is best read as an idea, not a fact.

Lab and animal studies point to plant compounds in the root bark that calm swelling and mop up free radicals (unstable particles that damage cells). Some animal work also hints at lower blood sugar and more urine flow. None of this has been tested in people.

In Ayurvedic terms, the root is said to be bitter and warming, and to settle vāta (the movement principle in Ayurveda). That is a traditional model. It does not map onto modern body science.

What forms does Gambhārī come in?

Dried root bark is the main part used. It is sold whole, cut or as a powder (churna).

Common forms are: a water decoction (kwath) made by boiling the bark; the plain powder; the herb as one part of a Dashamoola decoction or oil; the ripe fruit as juice or jam; and modern capsules or tablets made from bark extract.

Quality varies a lot between sellers. Bark is sometimes swapped for cheaper wood, so buy from a source that tests what it sells.

Where it comes from:

Gambhārī is named in the Charaka Samhita and the Sushruta Samhita. Those texts are well over 1,500 years old.

Its steady place in Ayurveda comes from the Dashamoola group of ten roots. Gambhārī is one of the five larger roots in that group. Dashamoola is still made daily in Ayurvedic pharmacies today.

The tree is also grown widely for timber across India and South East Asia, so the bark has always been easy to get.

What does Gambhārī help with?

• Fever and body ache: Old texts list Gambhārī root for fever with thirst. It is nearly always used inside the Dashamoola mix, not alone. We found no human trials that test it for fever.
• Swelling and joint pain: This is the most common use of the root today. Lab and animal tests show the bark can damp down swelling. No study has tested this in people, so we cannot say if it helps your joints.
• Weak digestion, gas and bloating: The bitter root is given for slow digestion and trapped gas. This use is old and steady in Ayurveda. There is no trial data in people to back it up.
• Burning or scanty urine: Ayurveda treats the root as a herb that pushes more urine out. Some animal work agrees. Burning urine can be a sign of an infection, so see a doctor rather than treat it at home.
• Low strength after illness or childbirth: The sweet ripe fruit is the part used here, often as a tonic. Dashamoola drinks are also given after birth in many homes. The evidence is custom, not trials.
• Dry cough and chest tightness: Dashamoola decoctions that hold Gambhārī are used for stubborn dry cough. The herb is one of ten in that mix, so we cannot say what it does on its own. No human trial has tested it.

Which foods are rich in Gambhārī?

1. Ripe Gmelina arborea fruit: eaten fresh or made into jam in parts of India
2. Dashamoola decoction: a home drink in which Gambhārī root is one of ten herbs

Practical Tips:

Gambhārī is a herb, not a daily food, so you will not meet it in a normal diet.

What are the side effects of Gambhārī?

• Loose stools, mostly with large doses
• Upset stomach or nausea
• Dry mouth
• More trips to the toilet to pass urine
• A drop in blood sugar in people on diabetes medicine
• Skin rash or itching, if you are allergic to the plant

Good to know:

Side effects are not common at the amounts used in Ayurveda. Most reports are mild. They tend to fade once you stop the herb.

There is no long safety record from human studies. So treat any new symptom as a reason to stop. Then ask a doctor before you start again.

How much Gambhārī should you take?

• Recommended daily: No dose has been set by human trials. The numbers below come from Ayurvedic practice, not from research. Dried root bark powder: 3 to 6 g a day, split into two doses. Root bark decoction (kwath): 50 to 100 ml a day. Ripe fruit juice: 10 to 20 ml a day. Start at the low end. Ready-made products should be dosed as the label says, since extract strength varies.
• Best time of day: Most often twice a day, morning and evening. A decoction is usually taken warm.
• With or without food: Powder and decoction are usually taken after food, since the bitter bark can upset an empty stomach. The fruit tonic can be taken at any time.
• Time to effect: Unknown, as no trial has measured it. In traditional use, digestive effects are said to show within days, while swelling and pain are watched over two to four weeks.
• How long to take it: Short courses are the norm. Two to four weeks is typical, then stop and take stock. If nothing has changed after four weeks, there is little reason to keep going. Do not take it for months on end without an Ayurvedic practitioner watching you.