Zalzalak
Quick Facts
- What it is: Zalzalak is the sour red fruit of the Middle Eastern hawthorn tree, used in Persian and Unani medicine as a heart tonic and digestive.
- Main uses: Heart and circulation tonic use, Mild palpitations (a fluttering heartbeat), Indigestion after heavy meals
- Best for: Indigestion after fatty food, Traditional heart tonic use alongside, not instead of, medical care
- Active ingredients: Vitexin, Rutin, Quercetin, Oligomeric proanthocyanidins, Pectin, Vitamin C
- Forms: Dried fruit, Tea or decoction, Fruit paste or leather, Syrup, Jam, Powder, Capsules and tinctures (usually other hawthorn species)
- Time to effect: Digestive comfort the same day; any heart or blood pressure effect is unproven.
- Side effects: Usually mild: stomach upset, heartburn, dizziness. Extracts can interact with heart drugs.
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What is Zalzalak?
Zalzalak is a small red or yellow fruit. It grows on a Middle Eastern hawthorn tree, Crataegus aronia. In Persian and Unani practice, people eat it dried or brew it as a tea.
It is used mostly as a heart and blood flow tonic. It is also used as a mild remedy for the gut.
Today people take it for palpitations (a pounding or fluttering heartbeat). Others take it for mild high blood pressure, or to "strengthen the heart". It is a food as well as a remedy, so the fruit is widely seen as safe in normal food amounts.
Here is the honest verdict. Zalzalak has deep roots in tradition. But long use is not proof that a thing works, and human trials of this exact fruit are more or less absent.
What follows keeps what tradition claims apart from what has been tested.
How does Zalzalak work?
The claimed action is on blood vessels and heart muscle. Lab and animal work on hawthorn plants points that way.
In that work, the flavonoids (plant pigments that act as antioxidants) appear to relax blood vessels a little. They may also make each heartbeat slightly stronger.
This is an idea, not a proven mechanism for zalzalak. None of this work shows that eating the fruit changes blood pressure in a person. It does not show a change in heart function either.
Any real effect would act on the same systems as heart drugs. So the interaction warnings below matter more than the claimed benefit.
What forms does Zalzalak come in?
Dried whole fruit is the old and most common form. People simmer it into a tea (a decoction). Some just eat it as a sour snack.
You can also find it as a fruit paste or fruit leather. Other forms are syrup, jam and fruit powder.
Capsules and tinctures in shops are often not zalzalak. Most are made from European hawthorn (Crataegus monogyna or laevigata).
Check the Latin name on any label. Extracts are far stronger than the fruit. They are more likely to interact with medicines.
Where it comes from:
Hawthorn fruit shows up in old Persian and Unani medical texts. Writers list it as a cooling, astringent (drying) remedy for the heart and the gut.
Books from Avicenna's time group it with fruits said to "strengthen" the heart and settle the stomach.
It is still a household food and remedy today. You will find it in Iran, Turkey, the Levant and Central Asia. Related hawthorns hold a similar place in European and Chinese herbal tradition.
Who should avoid Zalzalak?
- Do not use zalzalak as a remedy if you take digoxin or another digitalis heart medicine, unless your doctor is supervising you.
- Do not use it to treat heart failure, angina (chest pain from the heart) or an irregular heartbeat on your own, and never stop a prescribed heart medicine to take it.
- Do not take concentrated capsules or tinctures if you take beta-blockers, blood pressure medicines or nitrates without asking your prescriber first.
- Do not use medicinal amounts if you are pregnant or breastfeeding, because safety has not been studied.
- Do not give medicinal doses or extracts to children; food amounts of the fruit are a different matter.
- Do not use it if you are allergic to plants in the rose family, such as apple, pear, plum or almond.
- Avoid it for two weeks before any planned surgery, because of possible effects on blood pressure and clotting.
- Do not use it if you already have low blood pressure or faint easily.
When should you see a doctor?
See a doctor straight away if you get chest pain, sudden shortness of breath, fainting, or a heartbeat that is fast, irregular or will not settle. These need urgent assessment and are never something to manage with a herbal tea.
Make a routine appointment if you notice ongoing dizziness, unusual bruising or bleeding, swelling in your ankles, or a rash after taking it. Also speak to your doctor before starting daily zalzalak if you take any heart, blood pressure, blood-thinning or diabetes medicine.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
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