Educational information, not medical advice — ask your doctor or midwife.
Buchanania lanzan is an Indian forest tree. Its small, soft seeds are sold as charoli or chironji nuts. Most people meet it as a food, not a medicine.
The kernel is rich in fat and protein. It tastes mild and faintly like almond. Cooks use it in sweets, festival dishes, curries and cold drinks.
Ayurvedic writers also used the seed, bark, gum and leaf. Long use in food and in tradition is not proof that it treats anything, and it is not proof of safety.
The short evidence verdict: human trials are almost absent. Treat charoli as a pleasant, nourishing nut rather than a remedy.
Almost everything said about how it works comes from lab and animal work, not from people.
The kernel oil is mostly oleic acid, the same main fat as in olive oil. That makes it an energy-dense food. No trial has shown that eating it changes cholesterol or heart risk in people.
Bark and leaf extracts hold tannins and flavonoids. In test tubes these mop up free radicals, which are unstable molecules that can damage cells. Antioxidant activity in a dish does not tell you what happens in a body.
In rats, bark extracts have lowered blood sugar and reduced swelling. The doses were concentrated and given by researchers. Whether eating charoli nuts does anything similar in humans is not established.
There is no accepted mechanism for the traditional skin and digestion uses. Any explanation you read for those is a guess built on lab findings.
You will mostly find it as a kitchen ingredient.
- Whole raw kernels, sold as charoli or chironji. - Roasted kernels, used as a topping. - Ground kernel paste or flour, used to thicken sweets and sauces.
- Pressed kernel oil, used in cooking and in some cosmetics. - Dried bark powder, sold in some Ayurvedic shops. - Capsules or extracts of bark or seed, sold as supplements in a few markets.
Food-grade kernels are the only form with a long, ordinary record of use. Bark and extract products are far less common and much less studied.
Charoli has a long place in Indian kitchens and in Ayurvedic texts, where the tree was called Priyala.
Classical writers listed the seed as a nourishing, cooling food for people who were weak or recovering. Bark was described as astringent and was used for loose stools. A paste of the kernel was applied to the skin in some folk practice.
In central Indian forests, the seeds were gathered by tribal communities and traded as a cash crop. They were also eaten in lean seasons when grain ran short.
These accounts describe what people did in the past. They are not a reason to self-treat a health problem now.
Call emergency services if you get swelling of the lips, tongue or throat, a spreading rash, or trouble breathing after eating charoli. That is an allergic reaction and it can move fast.
See your doctor if diarrhoea lasts more than two days, or comes with blood, black stools or fever.
If you take diabetes medicine and start bark products, check your blood sugar and tell your doctor about shakiness, sweating or confusion.
In India, charoli is an ordinary food nut and is sold freely. In the UK, EU, US, Canada and Australia it is treated as a food or food supplement. No regulator has approved it to prevent or treat any disease.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
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