What is Gambhari?

Gambhari is a large tree, Gmelina arborea. Ayurveda uses its bark, root and fruit. It is used as a single herb, not as a mixed formula.

People take it for slow digestion, low appetite, mild fever and swelling. It is also used as a tonic after illness and in old age.

The evidence here is weak. Almost all of it comes from lab dishes and animals. Long use in a tradition is not proof that a herb works.

How does Gambhari work?

No one has shown how Gambhari works in people.

Lab and animal tests point to a few possible actions. Bark extracts calm swelling in animals. Some animal work shows lower blood sugar.

Other tests suggest the herb mops up free radicals (unstable molecules that can harm cells). None of this has been checked in humans.

Ayurveda explains it in its own terms. The bark is called sweet, bitter and warming, and is said to steady digestion. That is an old model, not a lab result.

What forms does Gambhari come in?

Dried bark or root powder is the most common form. A bark decoction (a boiled-down brew) is also used.

You may also see tablets, capsules and liquid extracts.

Gambhari is one of the ten roots in Dashamoola, a well-known Ayurvedic root blend. Check the label, since blends hold other herbs too.

Bark paste is put on the skin for wounds and sores. The fruit is eaten fresh, dried, or as a jam in some parts of India.

Where it comes from:

Gambhari is an old Ayurvedic herb. It shows up in the Charaka Samhita and Sushruta Samhita, texts from roughly 2,000 years ago.

It is best known as one of the ten roots of Dashamoola. Kashmari and Gumhar are other common names.

The tree is also grown for its timber, sold as white teak. Its use as a medicine sits mainly in South Asia.

What does Gambhari help with?

• Slow digestion and low appetite: This is the most common Ayurvedic use of the bark and fruit. Texts describe it as warming and drying for the gut. No human trial has tested it for digestion, so treat this as tradition only.
• Mild fever: Gambhari sits in Dashamoola, which Ayurveda uses in fever blends. Any effect from Gambhari alone has not been separated out. There is no human trial support for it.
• Swelling and fluid build-up: Old texts call the bark a diuretic (something that makes you pass more urine). Animal work hints at less swelling. Swelling in the legs or belly can signal heart, kidney or liver trouble, so see a doctor first.
• Burning or discomfort when passing urine: Traditional use only. Burning urine often means an infection that needs a doctor and may need antibiotics. Do not treat it at home with herbs alone.
• Weakness after illness: Ayurveda uses Gambhari as a rasayana, a tonic taken to rebuild strength. No trial has measured strength, energy or recovery in people taking it.
• Minor wounds and skin sores (used on the skin): Bark paste and leaf juice are old wound remedies. Some animal wound studies look promising. Human data is missing, and a deep, dirty or spreading wound needs medical care.

Which foods are rich in Gambhari?

1. Gambhari fruit: eaten fresh or dried in parts of India, and made into jam or pickle
2. Gambhari leaf: cooked as a leafy vegetable in some rural diets

Practical Tips:

Food amounts are small and are not the same as a medicinal dose.

What are the side effects of Gambhari?

• Stomach upset or a heavy feeling after eating
• Loose stools
• Nausea
• Dry mouth
• Passing more urine than usual
• A drop in blood sugar, with shakiness or light-headedness, if you take diabetes medicine
• Skin rash or itching (an allergic reaction)

Good to know:

Side effects are not well recorded, because no proper human safety study has been done.

What is reported is mild and settles when people stop taking it. Most reports involve the gut.

Stop taking it and get medical help if you get a rash, swelling of the lips or face, or trouble breathing.

How much Gambhari should you take?

• Recommended daily: No dose has been set by human trials. What follows is common practice, not proof. Ayurvedic practice often uses 3 to 6 g of dried bark or root powder a day, split into two doses. A bark decoction is often given as 50 to 100 mL a day. Ranges differ between texts and teachers. Follow the label on any product you buy, and start at the low end.
• Best time of day: Usually twice a day, morning and evening. Powder is often mixed with warm water, honey or milk.
• With or without food: Most often taken with or just after food. Taking it with food may cut the risk of stomach upset.
• Time to effect: Unknown. Traditional use suggests days to a few weeks for digestion complaints. No trial has measured this.
• How long to take it: Short courses are the usual pattern. Many Ayurvedic teachers use it for two to four weeks, then stop and review. Stop and see a doctor if nothing has changed after four weeks. Do not take it for months on end without advice, since no long-term safety data exists.