Educational information, not medical advice — ask your doctor or midwife.
What is sorrel, and what is it used for?
Sorrel is a tart red drink made from Hibiscus sabdariffa. The part used is the dried calyx, the thick cup that holds the flower. In West Africa it is known as zobo, sobolo, bissap and yakuwa.
The dried calyces are steeped in hot or cold water. The drink is deep red and sour. Sugar, ginger, cloves, mint or pineapple are often added.
People drink it as a daily refresher. Some also take it in the hope of easing high blood pressure.
The evidence verdict: hibiscus tea does lower blood pressure a little in short trials. The drop is modest. Most other claims rest on long tradition, and tradition is not proof of effect or of safety.
How is it thought to work?
The blood pressure effect is real but small, and the reason for it is not fully settled.
In test-tube work, hibiscus extracts block ACE, an enzyme that tightens blood vessels. This is the same target as some blood pressure drugs. Whether tea drinking does this in your body has not been shown.
In animals, hibiscus acts as a mild diuretic, meaning it makes the body pass more urine. Losing fluid and salt can lower pressure a little. Human proof of this pathway is limited.
The red colour comes from anthocyanins, a group of plant pigments. In cell studies these soak up damaging molecules and calm markers of inflammation. Such lab findings do not tell you what happens in a person.
What forms is it sold in?
Sorrel is sold as a drink, as a tea and as a supplement.
- Loose dried calyces, sold by weight in markets. - Tea bags and herbal tea blends. - Bottled or sachet zobo and sobolo drinks, often heavily sweetened.
Other forms include:
- Powdered extracts, capsules and tablets. - Syrups, jams and sorrel wines. - Fresh or dried leaves (yakuwa), cooked as a green vegetable in soups and stews.
Street-sold and bottled versions can carry a lot of added sugar. That matters if you have diabetes or are watching your weight. Capsules are far more concentrated than a cup of tea.
Where does it come from?
Hibiscus sabdariffa has been grown across West Africa, Sudan and Egypt for centuries. The drink is called karkade in Sudan and Egypt, bissap in Senegal, zobo in Nigeria and sobolo in Ghana.
In Hausa the plant is yakuwa, and both the calyx and the leaf were used. The leaves went into soups and sauces as a sour green.
Traditional healers gave the drink for fever, to "cool" the body, for swelling and for high blood pressure. Caribbean sorrel, taken to the islands through the slave trade, became a Christmas drink. These records describe what people did, not what works.
Short answer: Not studied in pregnancy; avoid unless your clinician advises otherwise.
Educational information, not medical advice — ask your doctor or midwife.
When to see a doctor:
Stop drinking it and get medical help the same day if you feel faint, very dizzy, or your heart races.
Get emergency care for swelling of the lips, tongue or throat, or trouble breathing. That can be a serious allergic reaction.
See a doctor soon if your eyes or skin turn yellow (jaundice, a sign of liver trouble), or if your urine turns dark.
See a doctor if you are being treated for malaria and the fever does not settle.
Always tell your doctor you drink sorrel daily if you are on blood pressure, diabetes, lithium or statin medicine.
In the United States, the United Kingdom and most of West Africa, hibiscus is an ordinary food and beverage ingredient. Capsules and extracts are sold as food supplements, not as medicines. No regulator has approved sorrel to treat or prevent any disease.
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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