Educational information, not medical advice — ask your doctor or midwife.
Track Hummaz with reminders and record whether it helped, in the app.
Hummaz is the Persian and Unani name for the sour leaves and soft stems of Rumex vesicarius. This desert plant belongs to the dock family. It is also called bladder dock or bladder sorrel.
It is a single drug. That means one plant used on its own, not a mixture of several.
In classical Unani practice it is used as a cooling, sour food-medicine. Healers gave it for loss of appetite, nausea, thirst, slow digestion and mild constipation. People eat it as a leaf vegetable as often as they take it as a medicine.
Here is the honest evidence position. The traditional record is long and steady. But there is almost no modern human trial evidence.
Long traditional use is not proof that something works. That point applies to everything on this page. Nothing here should be read as a cure or a promised result.
One practical point matters more than any claimed benefit. Like spinach, rhubarb and other sorrels, Hummaz is high in oxalates. These are natural acids that can bind calcium and form kidney stones.
That is why this page is rated caution rather than routine.
No one has confirmed how Hummaz works in people. So everything below is a fair idea, not a proven fact.
The sour taste comes from oxalic acid and related plant acids. Sour, sharp plants are thought to bring on saliva and stomach juices. That may explain the old use for poor appetite and nausea.
Dock plants of the Rumex group also hold anthraquinones. These are plant compounds that can loosen the bowel by pulling water into the gut.
Lab work has found antioxidant activity in leaf extracts. That means the extract mops up reactive molecules in a test tube. Such test-tube results do not reliably predict anything useful in a living person.
Hummaz is most often used in the simplest forms.
Fresh leaves are eaten raw in salads or cooked like spinach. Some people make a water infusion or a decoction of the dried leaf.
Fresh leaf juice is used in some Unani preparations. Dried powdered leaf is sometimes folded into compound Unani formulas.
Standardised capsules and extracts are not common. There is no agreed strength standard for them.
Hummaz has a long, settled place in Persian and Unani writing on cooling, sour foods. Doctors in the Arabic-Persian tradition called it cold and dry. They gave it for conditions they saw as hot, such as fevers, thirst and bilious nausea (sickness linked to bile).
It spread across Egypt, the Arabian Peninsula, Iran, Iraq and northern India. People gathered it wild as a vegetable and kept it as a home remedy. Local names for it survive in all of these regions.
It is still a staple single drug in Unani practice today. Its standing rests on that long, recorded use rather than on clinical testing.
See a doctor promptly if you get sharp pain in your side or back, blood in your urine, or you are passing much less urine than usual, as these can be signs of a kidney stone or kidney injury. Get medical help the same day for vomiting that will not stop, severe stomach pain, or diarrhoea that lasts more than two days. Call emergency services if someone has swallowed a large amount of the leaves or juice and becomes confused, weak, short of breath or develops a fast or irregular heartbeat. Also speak to your doctor before using Hummaz regularly if you take a blood thinner, a water tablet, lithium or digoxin.
Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.
Reviewed by the HealisticMD editorial team How we grade evidence →
The published evidence for Hummaz is weak or absent. That usually means no controlled trial has tested it, not that a trial found it ineffective — the two are different, and we grade only what has been published.
What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.
One email with the summary. We'll also send a short weekly evidence update — unsubscribe any time.
