Educational information, not medical advice — ask your doctor or midwife.
Tiger nut is a small tuber, not a true nut. It grows underground on the sedge plant Cyperus esculentus. In Hausa it is called aya.
It is an everyday food across West Africa. The tubers are chewed raw, eaten dried, or soaked and blended into a milky drink. That drink is known as kunun aya.
Here is the honest verdict. Tiger nut is a nourishing food, high in fibre and in the same fat found in olive oil. Human trials testing it as a treatment are few and small, and long traditional use is proof of neither effect nor safety.
Most of what tiger nut does comes from its make-up as a food, not from a drug-like action.
It is high in fibre and in starch that resists digestion. Fibre of this kind adds bulk to stool and feeds gut bacteria. That is well understood for fibre in general.
In lab and animal studies, tiger nut extracts show antioxidant activity. Whether that changes anything in the human body is not established.
Its oil is mostly oleic acid, the main fat in olive oil. Diets rich in this fat are linked with better blood fat levels. That link comes from wider diet research, not from trials of tiger nut.
Claims that it lifts fertility or sex drive rest on tradition and a few animal studies. Good human trials are missing.
Tiger nut is sold mainly as a food, in these forms: - Whole dried tubers, hard and chewy - Fresh tubers, softer and sold at markets in season - Tiger nut milk, called kunun aya in Nigeria and horchata de chufa in Spain - Flour, used in baking and in gluten-free mixes - Cold-pressed tiger nut oil, used for cooking and on skin - Capsules and powders sold as supplements
Home-made and street-sold tiger nut milk spoils fast. It needs clean water and cold storage.
Tiger nut has been eaten for thousands of years. Tubers have been found in ancient Egyptian tombs, and the plant was known around the Mediterranean.
In Hausa-speaking northern Nigeria and Niger, aya was a common snack and a street drink. Sellers soaked the tubers, ground them, and strained the milk, often with dates or ginger.
Folk use credited it with building strength, easing a dry cough, and supporting fertility and milk supply in nursing mothers. Healers also used the oil on dry skin. These were customs, recorded as such, and none of them were tested at the time.
Call emergency services at once if you get swelling of the lips, tongue or throat, a widespread rash, or trouble breathing after eating tiger nut. These are signs of a severe allergic reaction.
Get urgent help if a child chokes, coughs hard or cannot speak after eating a whole tuber.
See a doctor if you have belly pain, bloating or diarrhoea that lasts more than a few days. Also see a doctor if you are using tiger nut for constipation and your bowel habit changes without a clear reason.
In the UK, EU and United States, tiger nut is an ordinary food. Horchata de chufa from Valencia in Spain holds a protected regional name. Capsules and powders are sold as food supplements and are not tested or licensed as medicines.
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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