Educational information, not medical advice — ask your doctor or midwife.
Avocado pear is the tree Persea americana. In Twi it is called paya. This page is about the leaf and the seed, not the green fruit you eat.
In West African home medicine, the leaves are boiled into a tea. The seed is dried and grated or ground. Both are taken for high blood pressure, for diabetes and for stomach trouble.
The leaf and seed are not food. They hold persin, a natural compound that poisons goats, cattle, horses and birds. What persin does in people has barely been studied.
Human evidence for the leaf and seed is very thin. Almost all of it comes from test tubes and animals. Long use in a tradition is not proof that something works, nor proof that it is safe.
No one has shown in people how avocado leaf or seed works. The ideas below come from lab and animal work only.
In rats, water extracts of the leaf have lowered blood pressure. Researchers think blood vessels may relax and more urine may be passed. Human trials have not confirmed this.
In test tubes, leaf and seed extracts mop up free radicals. They also slow enzymes that break starch down into sugar. Whether that changes blood sugar in a person is unknown.
In lab dishes, seed extracts slow some bacteria and fungi. That is a long way from treating an infection in the body.
Persin is the one action that is well proven, and it is a harmful one. In animals it damages heart muscle and milk tissue. The dose that matters in people has never been worked out.
Most West African use is the fresh or dried leaf, simmered in water as a tea.
Forms you may meet: - Fresh or dried whole leaves, boiled into a decoction - Teabags of cut leaf sold as avocado leaf tea - Dried seed, grated or milled to powder - Capsules and tinctures of seed or leaf extract - Seed powder stirred into smoothies, a social media trend
Strength is not standard in any of these. Leaf tea from one tree is not the same as from another.
No label tells you how much persin is in the pack. Testing of these products is rare.
Healers in West Africa have used avocado leaf and seed for generations. The tree itself is not native there. Traders brought it from Central America in the 1500s and 1600s.
In Ghana and Nigeria, the boiled leaf was taken for high blood pressure and for diabetes. It was also used to bring on urine and to ease stomach cramps.
Seed powder was used for stomach pain, worms and skin sores. Chewed leaf was sometimes held against a sore tooth.
In parts of the region, strong leaf or seed drinks were used to bring on a late period. That is a warning sign for pregnancy, not a use to copy.
Similar remedies appear in Mexican and Caribbean folk medicine.
Stop and get urgent help if your lips, tongue or throat swell, or if you struggle to breathe. That is an allergic emergency.
Stop and see a doctor the same week if you notice: - Yellow eyes or yellow skin - Dark urine or pale stools - Pain under the right ribs - Vomiting that will not stop - Fainting, or a heartbeat that feels wrong
Also see your doctor if your blood pressure or blood sugar readings change after you start it.
In the UK, the US and most of West Africa, avocado fruit is an ordinary food. Leaf and seed products are sold as herbal teas or food supplements. No medicines regulator has licensed them to treat any condition.
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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