Fennel
Foeniculum vulgare
also known as Sweet fennel, Bitter fennel
A licorice-flavored seed and bulb used since antiquity for digestive comfort, gas, and as a mild expectorant.
- Eases infant colic (with caution)
- Carminative — eases gas and bloating
- Eases mild cough as expectorant
- Mild lactation support (galactagogue)
- Approved by Commission E for digestive complaints
- Used since ancient Greek and Roman times
Active in Anethole, Fenchone, Estragole, Limonene.
Possible cross-reactivity with Apiaceae allergy (carrot, celery)
Limit infant exposure — rare estrogenic concerns
Use caution with hormone-sensitive cancers
Avoid medicinal doses of essential oil in pregnancy
Photosensitivity possible
Related literature · not reviewed for these claims
These papers were imported by topic. They may concern plants, laboratory work, or different preparations. Inclusion here does not establish a human health benefit or support the claims above. How to read our sources →
- In-silico interaction of molecules from Foeniculum vulgare methanolic seed extract with conserved RNA binding residues of NS3 protein of Dengue virus.
- Ferulic Acid- and Quercetin-based Extracts Enhanced Neuropharmacological Potential in Swiss Albino Mice: Molecular Dynamics Simulation,mMolecular Docking, ADMET, and Biological Investigation.
- The association between medicinal herbs consumption and body weight and composition: a hospital based cross-sectional study.
- A Green Shield for Copper: Corrosion Inhibition by Fennel (Foeniculum vulgare) Seed Extract Revealed through Experiments and Modeling.
- Combined use of proline and microbes on yield attributes, photosynthetic efficiency, water relations, nutrient acquisition and antioxidative defense mechanisms of fennel plants under drought conditions.
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Common questions
It's been used for this traditionally and has some support, but "with caution" is the right framing. Talk to a pediatrician before giving fennel preparations to an infant.
Yes, this is one of its best-established traditional uses. Fennel is a carminative, meaning it specifically helps ease gas and bloating, and it's approved by Germany's Commission E for digestive complaints.
Avoid medicinal doses of fennel essential oil specifically during pregnancy. Fennel as a cooking spice in normal food amounts isn't the same concern.
Use caution. Fennel has some estrogenic activity, so it's worth discussing with your provider if you have a hormone-sensitive cancer or condition.