Educational information, not medical advice — ask your doctor or midwife.
Dasheen is the starchy underground stem, or corm, of the plant Colocasia esculenta. In Jamaica it is often called coco or eddoe. Across the Eastern Caribbean the same plant is called taro.
It is a food first. Cooks boil, roast or mash the corm. It is also milled into flour, fried as chips, or served as porridge.
In several islands the young leaves are cooked as callaloo. Both the corm and the leaves must be cooked well before eating.
Here is the short verdict. As food, dasheen is a solid source of starch, fibre and potassium. As a medicine, human evidence is thin, and traditional use is not proof of effect or of safety.
One rule matters more than any health claim. Raw dasheen holds sharp crystals that sting the mouth and throat.
Most of what dasheen does is plain nutrition, not drug action.
The corm is mainly starch. Some of it is resistant starch, which is not digested in the small bowel. It travels on to the large bowel, feeds gut bacteria and adds bulk to stool.
In small human trials, resistant starch slowed blood sugar rises after meals. Whether dasheen does this depends on how you cook it. Boiled and cooled taro has a gentler glycaemic (blood sugar) impact than hot mashed taro.
Lab work points to other effects that are not proven in people. In test tubes and in animals, taro extracts appear to slow some tumour cells. In the same settings they lower some markers of inflammation.
A taro protein called tarin has shown immune effects in cell studies only. Nothing here tells you what dasheen does inside your body.
The mouth burning from raw dasheen is better understood. Raw tissue holds needle shaped crystals of calcium oxalate. They jab the lining of the mouth, and heat plus long cooking breaks them down.
Most people meet dasheen as plain food from a market.
Common forms: - fresh corms, either large dasheen or small eddoes - taro flour, used for porridge, dumplings and baking - taro chips and crisps - frozen or vacuum packed cooked pieces - young leaves, fresh or canned, for callaloo - taro powder and bubble tea mixes, often with added sugar - poi, the fermented Pacific paste, sold in some shops
Supplement capsules of taro are rare. There is no agreed extract strength, so one brand tells you nothing about another.
No form is safe raw. Every form above is meant to be cooked, or has already been cooked for you.
Dasheen has long standing as Caribbean food, not as a pharmacy item.
The plant came from Asia and the Pacific, then spread across Africa. Enslaved Africans and later migrants carried it into the Caribbean. By the 1700s it was a staple crop on many islands.
Healers and families also used it in simple home ways. Grated corm was used as a warm poultice on sores and swellings. Taro leaf juice was dabbed on small cuts in some islands.
Boiled corm and taro porridge were fed to babies and to elders. They were also given to people building strength after illness.
These customs were passed down by family habit. They were never tested in trials, and this page does not present them as a reason to treat yourself.
Stop eating and get urgent medical help if, after eating dasheen, you have: - swelling of the lips, tongue or throat - trouble breathing or swallowing - a widespread rash with wheeze or faintness
See a doctor the same day if mouth burning does not settle within a few hours, or if you have severe stomach pain or vomiting.
Make a routine appointment if you get ongoing bloating or loose stool, or if you have kidney stones and are unsure what you may eat.
In the United States, United Kingdom, Canada and across the Caribbean, dasheen is an ordinary food sold in shops and markets. No medicines regulator has approved it to treat any condition.
Some countries limit imports of live taro plants or soil to stop plant disease. That is a farming rule, not a safety warning about the food.
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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