Mammee apple

What is Mammee apple?

Mammee apple is a tall tropical tree from the Caribbean. Its round brown fruit has sweet orange flesh that people eat fresh. The remedy on this page is not that flesh.

The folk remedy uses the seed, and sometimes the leaf, bark or sticky gum. These were crushed and rubbed on skin or fur to kill chiggers, lice and mange mites. They were never meant to be swallowed.

The seed is poisonous if eaten. No human trial supports the skin use either. Long and widespread tradition is not proof that something works, and it is not proof that it is safe.

How does Mammee apple work?

The seed holds oily compounds that kill insects in laboratory tests. That is the whole basis for the folk use.

The main ones are coumarins, a group of plant compounds. In lab work, mammein and surangin B kill or stun insects and mites. Surangin B appears to block nerve signals in insects.

Whether that clears chiggers or lice on a human scalp has never been tested. Skin is very different from a dish in a lab. A crushed seed from a yard tree also has unknown strength.

The same compounds do not stop at insects. In lab and animal work, mammein is toxic to fish and to nerve and heart tissue. A chemical that kills a mite on your skin is not, by that fact, kind to you.

What forms does Mammee apple come in?

There is no standard product. Nearly all use is homemade, from a tree in the yard or a seed from the market.

Traditional forms were: Crushed seed mixed into oil, fat or rum and rubbed on skin or fur. Leaf or bark soaked in water and used as a wash. Raw gum from the trunk, dabbed straight on the skin.

The ripe fruit is sold fresh and made into jam, ice cream and drinks. That is food, not the remedy.

You will not find a licensed mammee seed lotion or shampoo. Strength and purity of a home batch are unknown. This page gives no recipe, and the safety section says why.

Where it comes from:

Caribbean households have used this tree as a bug killer for a very long time. In Haiti it is zabriko. In Spanish-speaking islands it is mamey or mamey de Santo Domingo.

Older field and folk reports describe seed paste rubbed on chigger bites. Leaf and seed washes went on dogs with mange. The same extracts were used on crops and to stun fish in pools.

Chemists looked at the seed from the 1930s through the 1950s. They were hunting plant pesticides, not medicines. That work never became an approved treatment for people or pets.

What does Mammee apple help with?

• Chigger bites: This is the best-known use. Crushed seed in oil or rum was rubbed on bitten skin to kill the mites and ease itching. No human trial has tested it. Lab work shows the seed compounds harm mites and insects. Nothing shows it is safer or better than a pharmacy cream.
• Head lice: Seed mixes were worked through the hair and scalp. Tradition held that they killed lice and nits. There is no trial in people, and this is a high-stakes place to guess. Scalp skin is thin and children absorb more. Proven lice treatments are cheap and well studied.
• Mange and mites on animals: Dogs with mange were washed or rubbed with leaf, bark or seed mixes. This use is widely recorded across the islands. There is no controlled study in animals either. Pets lick what you put on them, so a skin remedy can become a swallowed one. Cats are especially easy to poison.
• Fleas and ticks on animals: The same seed mixes were used to drive off fleas and ticks. The tree was treated as a home pesticide as much as a medicine. Strength is unknown and the dose a small animal gets is unknown too. Licensed vet products are matched to species and body weight.
• Scabies: Some reports extend the mite use to scabies, which burrows under the skin. No evidence supports this. Scabies needs a treatment that reaches the burrows, and it usually needs the whole household treated. Guessing here lets the mites spread.

Which foods are rich in Mammee apple?

The ripe flesh of the fruit is a normal food across the Caribbean, eaten fresh or made into jam, drinks and ice cream. The parts used as a remedy are the seed, bark, leaf and gum, and those are not food. Always remove and discard the seed.

What are the side effects of Mammee apple?

• Redness, burning or stinging where it is put
• Itchy rash from contact allergy
• Blisters or peeling skin, mainly from the bark gum
• Infection in scratched bite wounds
• Eye pain and damage if it gets in the eyes
• Vomiting, belly pain and drowsiness if swallowed
• Slow or odd heartbeat after swallowing, reported in animal work
• Poisoning in pets, especially cats, from licking treated fur

Good to know:

Skin reactions are the common problem. Burning, rash and blisters are reported often enough that older sources warn about them.

The serious risk is swallowing. The seed is treated as poisonous across the region, and it was used to stun fish.

No one tracks how often harm happens, because this is a home remedy. So the true rates are unknown.

How much Mammee apple should you take?

• Recommended daily: This page gives no amount and no recipe, on purpose. The seed is poisonous if swallowed. The skin mixes have never been tested in people for strength, safety or effect. A home-crushed seed has unknown potency. Printing a number would hint that a safe one is known. It is not.
• Best time of day: Does not apply. This page does not describe a way to use the seed, leaf, bark or gum.
• With or without food: Nothing on this page is for swallowing. Never eat the seed, bark, leaves or gum, and never drink a wash made from them. The ripe orange flesh is an ordinary fruit. Eat it as you like it.
• Time to effect: Unknown. No study has measured it in people or pets. Tradition said chigger itch eased within hours of a seed rub. That has never been checked against a dummy treatment. It may also do nothing at all.
• How long to take it: No length of use is given, for the same reason. With no safe amount, there is no safe stretch of days. Repeated use on skin raises the chance of burns and allergy.