When to take it
After meals or when symptoms occur.
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DigestionWeak evidence
Fennel
Also known as: fennel seed, Foeniculum vulgare
Fennel is a medicinal and culinary plant whose fruits contain an essential oil rich in anethole. It is traditionally used for bloating, wind and digestive discomfort.
What it is used for
- Relief of bloating and wind – traditional use, weak clinical evidence
- Painful periods – limited evidence from small studies
- Soothing digestion after meals – traditional use
Forms and how they differ
fruits (seeds)
for tea, crushed just before infusing
dry extract
capsules with a standardised dose
essential oil
only as directed, not for children
Pairs well with
Caraway, mint and chamomile in tea blends.
Do not combine / separate
Long-term high doses without breaks.
Watch out for
Fennel contains estragole, so caution is advised in pregnancy, breastfeeding and young children. If you are allergic to the carrot family, have a hormone-sensitive condition or take medicines, consult your doctor.
Safety
Do not exceed the dose stated on the label.
Practical tip
Lightly crush the seeds before making tea to release more of the aromatic compounds.
Products containing Fennel 1
Fennel extractextract
How to read the evidence rating
Strong evidenceModerate evidenceWeak evidenceNo evidence
Strong = several good human studies or official recommendations; moderate = promising but smaller studies; weak = few studies or mixed results; no evidence = claims not confirmed.
Combination check
Select the supplements you take and, if relevant, your medicines. We show what interferes, what needs a time gap and what to watch out for.
Check Fennel with othersWhich supplements do you actually need?
Fénix Methode picks them from your blood results and schedules when to take what – no needless purchases.
From the same group
Acacia fibreWeak evidenceActivated charcoalModerate evidenceAloe veraWeak evidenceApple fibreModerate evidenceArtichokeWeak evidenceBetaine HClWeak evidence
Important notice
This information is educational and does not replace advice from a doctor or pharmacist. We do not give medicine dosages. Supplements are no substitute for a varied diet; if pregnant, breastfeeding, ill or on medication, consult a doctor first.