Educational information, not medical advice — ask your doctor or midwife.
Wild caraway is the dried fruit of Carum carvi, a plant in the carrot family. Cooks call the fruits "seeds". German speakers know it as Kümmel.
It is first of all a food spice. It flavours rye bread, sauerkraut, cheese and the spirits akvavit and Kümmel. European folk healers also brewed it as a tea after heavy meals.
The folk uses were mostly about the gut. People took it for wind, bloating, stomach cramps and poor appetite. Weak seed teas were given to babies with colic, and to nursing mothers.
Here is the honest verdict. Caraway on its own has very little human trial evidence behind it. The better studies tested caraway oil mixed with peppermint oil in capsules, for ongoing indigestion, and those results look modestly positive.
Long use in kitchens and folk medicine is not proof that a remedy works. It is also not proof that it is safe. Both points matter when you read the rest of this page.
The short answer: nobody has shown clearly how caraway acts in the human gut.
The main idea is that it is a carminative, meaning it helps trapped gas move on. In test tubes and in animal gut tissue, caraway oil and its main compound carvone relax smooth muscle. Relaxed gut muscle may let gas pass and ease cramping.
Whether that same effect happens in your gut after a cup of tea is not established.
Caraway oil may also act on how the gut senses pain. In a small number of human studies using the caraway and peppermint oil blend, people reported less pain and fullness. The reason for that is still guesswork.
In laboratory tests caraway oil slows the growth of some bacteria and fungi. This has not been shown to treat any infection in people.
Animal studies have reported lower blood sugar and lower blood fats after caraway extracts. Human data is lacking. Treat these as leads, not as facts about your body.
Caraway is sold in several very different strengths. The form matters more than the amount.
- Whole or ground seeds. The kitchen spice, and the base for home tea. - Seed tea or infusion.
Crushed seeds steeped in hot water. - Enteric-coated capsules holding caraway oil with peppermint oil. These are the products used in most of the human trials.
The coating lets them pass the stomach before opening. - Pure essential oil. Very concentrated.
Sold for scent or for diluted use on skin. - Tinctures and liquid extracts in alcohol. - "Caraway water" and gripe-water style mixtures, sold in some countries for babies.
- Massage oil blends, where caraway oil is mixed into a carrier oil.
Food use is the lowest risk form by a wide margin.
Caraway is one of the oldest spices in European cooking. Seeds have been found at Stone Age settlement sites.
Greek and Roman writers listed it as a stomach remedy. Medieval European herbals carried it for wind, colic and poor appetite. It was also thought to keep lovers and poultry from straying, which tells you how such lists were made.
In German, Austrian and Scandinavian folk practice it was a standard after-dinner tea. Monastery gardens grew it. Bakers added it to heavy breads partly to make them easier to digest.
Nurses and midwives gave weak caraway teas to babies with colic, and to mothers to encourage milk. Both practices were common across northern Europe into the twentieth century.
This page records those uses. It does not recommend repeating them, and the infant uses in particular are covered in the safety section.
Stop and get medical help straight away if you have swelling of the lips, tongue or throat, a spreading rash, or any trouble breathing. That is an emergency.
See a doctor rather than treating yourself if you have:
- Indigestion or bloating that lasts more than two weeks - Vomiting blood, or black or bloody stools - Weight loss you did not plan - Trouble swallowing, or food sticking - Severe or sudden stomach pain - New indigestion and you are over 55 - A baby who cries constantly, feeds poorly, or is not gaining weight
Also tell your doctor if you take diabetes medicine and your blood sugar readings drop after starting caraway.
In the United States, caraway seed and its oil are recognised as safe for use as food and flavouring. In the European Union and the United Kingdom it is an ordinary food spice, and caraway fruit also has a European herbal monograph covering traditional use for mild digestive complaints. Supplements are sold as food supplements, not as licensed medicines, in most countries.
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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