Fennel
Foeniculum vulgareMarathon is named after a plain near Athens full of fennel; marathon is Greek for fennel.

What is Fennel?
Fennel (Foeniculum vulgare) is a plant of the Apiaceae family. Traditions that use it: Anatolia and the Mediterranean. Part used: seeds, bulb.
What is Fennel used for?
Traditional use: The tea is given for colic in babies and to boost milk in nursing mothers. Scientific evidence: limited. The EMA recognises fennel seed for mild digestive complaints, gas and period pain.
Is Fennel safe?
Safety label: caution. Because it contains estragole, the EMA advises against long-term use in young children and pregnancy. People allergic to celery or carrot may react.
Traditional use
The tea is given for colic in babies and to boost milk in nursing mothers. In the Aegean, the bulb and stalks go into dishes.
In nature
Mix-up risk
The same family includes deadly poison hemlock (Conium maculatum). Fennel has a clear aniseed smell; never pick umbrella-flowered plants that lack it.
Preparation
Seeds are lightly crushed and steeped.
What science says
The EMA recognises fennel seed for mild digestive complaints, gas and period pain. There are small studies on infant colic.
How strong is the evidence?
Claims often repeated online about Fennel, and what science says today.
| Claim | Evidence | Note |
|---|---|---|
| Reduces gas and mild digestive complaints | Traditional only | Recognised by the EMA as traditional. |
| Eases period pain | Limited evidence | Effect close to painkillers in small studies of low quality. |
| Helps infant colic | Limited evidence | Small studies exist; the EMA advises against use under 4 because of estragole. |
| Increases breast milk | No evidence | No reliable evidence. |
Common mistakes
- Giving babies fennel tea regularly: the EMA advises against it because of estragole.
- Overlooking the sugar in instant “baby tea” granules.
- Thinking fennel and anise are the same plant.
Frequently asked
Does fennel tea cause or relieve gas?
It is traditionally used to relieve gas.
Can babies have fennel tea?
The European Medicines Agency does not recommend it under 4. Ask a paediatrician about colic.
Does fennel increase milk?
A common belief, but there is no reliable evidence.
Safety
Because it contains estragole, the EMA advises against long-term use in young children and pregnancy. People allergic to celery or carrot may react.
Drug interactions
| Medicine or substance | Why it matters |
|---|---|
| Some antibiotics (ciprofloxacin) | Taken at the same time, may reduce absorption. |
| Hormone therapy and birth control pills | Its weak oestrogen-like effect could interact in theory. |
This list is not complete. If you take regular medication, ask your pharmacist or doctor before trying Fennel.
Similar plants
Sources
- EMA monographFoeniculi amari fructus: European Medicines Agency herbal assessment
- ResearchFoeniculum vulgare: botanik, fitokimya, farmakoloji ve toksikoloji (derleme)
- BookBaytop T. Türkiye’de Bitkiler ile Tedavi: Geçmişte ve Bugün. 2. baskı. İstanbul: Nobel Tıp Kitabevleri; 1999.
- Botanical recordKew Plants of the World Online: Foeniculum vulgare
- Titles of research sources are summarised in Turkish on the Turkish page; links open the original English publications.
Written by Edanaz Tınmazlar · Last reviewed: · Türkçe


