Fennel Seed for Infant Colic

Mediterranean and Middle Eastern — fennel seed tea, the ancestor of 'gripe water,' given for infant wind for centuries

Evidence: Low–moderate — RCTs including n=125 trial and a fennel/chamomile/lemon-balm combination trial

Illustration: Fennel seeds (Foeniculum vulgare)

Illustration: Wild fennel in flower

What it is and what it is used for

A weak tea of fennel seeds (Foeniculum vulgare) for infantile colic. In a 2003 RCT (n=125), 65% of the fennel group versus 23.7% of the placebo group found relief. A combination extract of fennel, chamomile, and lemon balm (ColiMil) also outperformed placebo in a double-blind trial.

Safety and disclaimers

Foraging and preparing your ingredients

Warning: illustrations and photographs alone are never enough for safe wild identification. Confirm every plant in person with a knowledgeable local expert and at least two reliable field guides before harvesting or eating anything from the wild.

Where and when to find it: Roadsides, coastal cliffs, and waste ground in Mediterranean regions and naturalized worldwide. Yellow umbrella flower clusters in summer; seeds ripen late summer to autumn.

Identification: Tall plant with feathery, dill-like leaves and a strong sweet anise scent when crushed; bright yellow umbels; ridged oval seeds. Compare with the captioned photos.

What to harvest: Seeds, when the umbels turn brown and dry.

Dangerous look-alikes: CRITICAL: fennel is in the carrot family (Apiaceae). Poison hemlock (Conium maculatum) grows in similar places and is deadly — it has smooth purple-spotted stems, white (not yellow) flowers, and a musty mouse-like smell with NO anise scent. The anise scent is your key test, but never rely on a single test: confirm with an expert and a field guide. Avoid roadside plants exposed to exhaust and spray.

Harvest sustainably: Cut ripe umbels and leave some to self-seed.

Preparing and storing:

Recipe

Ingredients:

Preparation:

  1. Lightly crush the seeds and steep in just-boiled water for 10 minutes.
  2. Strain well and let cool to lukewarm.

Dosage / directions: Small amounts (a teaspoon or two) for the infant, occasionally. The trialed form was a 0.1% fennel seed oil emulsion — weaker than many home teas, so keep it weak.

Folk history

Fennel's reputation as the baby's herb runs from Roman nurseries to the Victorian 'gripe water' bottle. Mothers from Naples to Damascus brewed fennel seed tea for windy infants as a matter of course. Modern pediatrics tested the nursery wisdom and found the old women were largely right.

Scientific references