Educational information, not medical advice — ask your doctor or midwife.
Purslane is a low, fleshy weed that people eat as a green vegetable. In Haiti and the French Antilles it is called pourpier. In Cuba and the Dominican Republic it is called verdolaga.
It grows in yards, field edges and cracks in paths. Caribbean homes have treated it as both food and mild remedy. It is eaten raw in salad, cooked in soup, or crushed onto the skin.
Long traditional use is not proof that a remedy works, and it is not proof that it is safe. For purslane, the human evidence is thin. A few small trials hint at small effects on blood sugar and blood fats, and nothing is settled.
Most claims for purslane come from lab and animal work, not from people.
Purslane is one of the richest leaf sources of alpha-linolenic acid, a plant omega-3 fat. Diets higher in plant omega-3 fats are linked with better heart health. Whether eating purslane itself changes heart outcomes has not been shown.
In test tubes, purslane extracts soak up free radicals, the unstable molecules that damage cells. In animals, seed extracts have lowered blood sugar and blood fats. Those results do not prove the same thing happens in you.
Small human trials have reported modest drops in fasting blood sugar and in LDL ("bad") cholesterol. The trials were short, small and mixed in quality. Treat the effect as possible, not proven.
The plant also holds mucilage, a slippery fibre that holds water. That is the likely reason for its old use as a gentle laxative. It has not been tested well for that purpose in people.
Most people meet purslane as a vegetable, not a pill.
- Fresh leaves and stems, eaten raw in salad.
- Cooked greens, added to soup, stew or rice.
- Pickled stems, sold in some markets.
- Dried leaf, brewed as a home tea.
- Seed and seed powder, the form used in several research trials.
- Capsules, tablets and liquid extracts, sold as supplements.
- Crushed fresh leaf, laid on the skin as a poultice in folk use.
Food forms are by far the most common. Supplements are not checked for strength the way medicines are. The amount of plant in a capsule can differ a lot between brands.
Purslane has been eaten and used as a home remedy across the Caribbean for centuries.
Rural and enslaved communities valued it as a free green that grew on its own. Healers in Haiti and the French Antilles gave pourpier for fever and constipation. They also used it as a cooling wash for rashes and bites.
In Cuba and the Dominican Republic, verdolaga went into soups for people recovering from illness. Mothers used the crushed leaf on sore, hot skin.
The plant travelled far beyond the islands. It is old in Mediterranean, Arabic, Indian and Chinese practice. There it was used for swelling, for dysentery (severe bloody diarrhoea) and for insect stings.
Stop purslane and see a doctor if you notice any of these.
- Pain in your side or back, or blood in your urine, which can signal a kidney stone.
- Shaking, sweating, confusion or a very low meter reading, which can signal low blood sugar.
- Muscle weakness, numbness or an odd heartbeat, which can signal high potassium.
- Diarrhoea or stomach pain that lasts more than a couple of days.
Get emergency help for swelling of the lips, face or throat, or for trouble breathing. Those are signs of a severe allergic reaction.
In the United States, the United Kingdom, the European Union and across the Caribbean, purslane is an ordinary food vegetable. Capsules and extracts are sold as food supplements, not as approved medicines. No regulator has approved purslane to treat or prevent 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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