Educational information, not medical advice — ask your doctor or midwife.
Pawpaw is the fruit of the tree Carica papaya, called borɔferɛ in Twi. This page covers the green unripe fruit and the leaf, not the sweet ripe fruit. Both are used as home remedies across West Africa and much of the tropics.
The green fruit and the leaf carry a milky sap. That sap is rich in papain, an enzyme that breaks protein apart. It is the same enzyme sold as meat tenderiser.
The evidence verdict in one line: leaf extract has some human trial support for raising platelet counts in dengue fever, and little solid human support for anything else.
Traditional use is not proof that a remedy works. It is also not proof that it is safe. This page separates the two throughout.
Papain breaks protein apart. That is clear in the test tube. Whether drinking leaf tea changes digestion inside your gut is much less clear.
In dengue fever, the leaf is thought to help the body make platelets faster. Platelets are the blood cells that help a clot form. In one trial, leaf juice went with higher activity of two genes tied to platelet making.
In cell and animal studies, leaf extracts slow some bacteria and parasites and lower markers of swelling. These are early findings. They do not show the same thing happens in people.
In rats, extracts of the unripe fruit made the womb muscle contract. This is the likely basis for the old use to end a pregnancy. It is also the main reason to avoid it in pregnancy.
Fresh leaf boiled into a dark, bitter tea is the most common home form.
Dried leaf powder and leaf capsules are sold as supplements. A few brands sell a leaf juice or syrup.
In India, a standardised leaf extract tablet is licensed as a medicine for dengue care. It is not a food supplement there.
Green unripe fruit is eaten as a cooked vegetable or in green papaya salad. In that form it is food.
Dried latex is sold as papain powder. Papain also turns up in digestive enzyme pills, meat tenderisers and some wound gels.
Seeds from unripe fruit are sometimes dried and ground at home.
West African homes used pawpaw long before anyone studied it. The tree came from Central America and spread along Portuguese trade routes in the 1500s.
In Ghana, where the fruit is borɔferɛ, the leaf was boiled for fever and malaria-like illness. Green fruit and sap were used for worms and to dress wounds and sores.
Healers also used green fruit and seed to bring on a late period and to end a pregnancy. That use is widely recorded across West Africa, the Caribbean and South Asia.
Papain itself has a long industrial past. It was used to tenderise meat and, in some hospitals, to clean dead tissue from burns.
Stop and see a doctor if you get stomach pain, ongoing vomiting or diarrhoea that does not settle within a day.
Get emergency help straight away if you have:
- swelling of the lips, tongue or throat, or trouble breathing - a sudden widespread rash with dizziness or faintness - vaginal bleeding or cramping during pregnancy - bleeding gums, bruising, or blood in vomit or stool - a high fever with severe belly pain or confusion
If you have dengue fever, keep seeing the medical team even if your platelet count improves.
In the UK, the US and the EU, papaya is an ordinary food. Leaf powder and capsules are sold as food supplements, not approved medicines, and no health claims are authorised for them.
In India, a standardised papaya leaf extract tablet is licensed as a medicine for dengue. Papain is an approved food processing enzyme in many countries.
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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