Fighting Colic with Fennel

Can This Tea Help to Ease Colic in Babies?

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Fennel (Foeniculum vulgare) is an herb commonly used in cooling and sometimes touted in alternative medicine as a natural remedy for colic in babies. When used for colic, fennel is typically taken in tea or emulsion form (i.e., a suspension of fennel seed oil in another liquid).

In some cases, breastfeeding mothers consume fennel so that the baby can then ingest the herb while nursing.

The Benefits of Fennel for Colic

Long used in herbal medicine, colic is said to protect against intestinal spasms and help eliminate gas (thought to be a key factor in the discomfort experienced by colicky babies).

 Fennel is thought to act as a carminative, a substance that prevents the formation of gas in the gastrointestinal tract.

Although very few studies have looked at whether fennel can fight colic, some research indicates that fennel may be of some benefit to colicky babies.

In a 2011 research review published in the journal Pediatrics, for instance, scientists analyzed 15 clinical trials on the use of complementary and alternative medicines in treatment of colic. Although the review's authors found "some encouraging results" for fennel, they note that there's not yet enough scientific evidence to support the use of any type of complementary or alternative medicine for colic. They also state that all of the trials included in the review had major limitations and flaws.

Clinical trials on the use of fennel for colic include a 2003 study published in Alternative Therapies in Health and Medicine.

For the study, 125 infants (ages 2 to 12 weeks) were given either a fennel seed oil or a placebo. Study results showed that use of fennel eliminated colic in 65 percent of infants in the treatment group (compared to 23.7 percent of infants in the placebo group).

In addition, a 2005 study from Phytotherapy Research indicates that treatment with a combination of fennel, chamomile, and lemon balm may help relieve colic.

The study involved 93 breast fed colicky infants. For one week, the infants in the study were treated with either the herbal formula or a placebo.

In their analysis of the 88 infants who completed the trial, researchers found that average crying time dropped from 201.2 minutes per day at the start of the study to 76.9 minutes daily by the end of the study for members of the treatment group. In the placebo group, meanwhile, average crying time only decreased from 198.7 minutes per day to 169.9 minutes daily.

Safety Concerns

As with any form of alternative medicine, little is known about the side effects of fennel use in babies due to a lack of research. Some babies may experience allergic reactions and/or gastrointestinal pain after consuming fennel.

Where to Find It

Widely available for purchase online, fennel tea and fennel seed oil can be found in many natural-foods stores.

Using Fennel for Colic

Although more scientific support is needed to show that fennel can treat colic effectively and safely, it's possible that fennel may help alleviate colic symptoms to some degree.

 If you're considering using fennel to address colic, make sure to consult your pediatrician first. Symptoms of colic generally improve after about six weeks. If your baby is still experiencing colic at 12-weeks-old, there may be an underlying condition (such as reflux). 

Although a number of other natural remedies (including catnip, caraway, mint, and ginger) are also purported to help treat colic, they also lack scientific support for their efficacy. However, there's some evidence that probiotics may help ease colic by curbing inflammation in the gut. 


Alexandrovich I, Rakovitskaya O, Kolmo E, Sidorova T, Shushunov S. "The effect of fennel (Foeniculum Vulgare) seed oil emulsion in infantile colic: a randomized, placebo-controlled study." Altern Ther Health Med. 2003 Jul-Aug;9(4):58-61.

Perry R, Hunt K, Ernst E. "Nutritional supplements and other complementary medicines for infantile colic: a systematic review." Pediatrics. 2011 Apr;127(4):720-33.

Savino F, Cresi F, Castagno E, Silvestro L, Oggero R. "A randomized double-blind placebo-controlled trial of a standardized extract of Matricariae recutita, Foeniculum vulgare and Melissa officinalis (ColiMil) in the treatment of breastfed colicky infants." Phytother Res. 2005 Apr;19(4):335-40.

Disclaimer: The information contained on this site is intended for educational purposes only and is not a substitute for advice, diagnosis or treatment by a licensed physician. It is not meant to cover all possible precautions, drug interactions, circumstances or adverse effects. You should seek prompt medical care for any health issues and consult your doctor before using alternative medicine or making a change to your regimen.

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