Tea for Bloating: Peppermint, Ginger and Fennel Ranked

The best-supported tea for bloating is peppermint, though the proof comes from peppermint oil capsules, not the tea itself: no clinical trial has tested peppermint tea^[1]. Fennel and chamomile come next, backed mainly by long-standing traditional use and small trials^[2][3]. Ginger has the weakest case for bloating.

Bloating is common: in a survey of 88,795 Americans, 13.9% had felt it in the past week^[4]. Below, each tea is ranked by the quality of its evidence, with the brewing amounts the European Medicines Agency (EMA) uses in its herbal monographs, and the people who should skip each one. For the causes behind your symptoms, see our main guide to bloating and the gut microbiome.

Get medical help promptly if your bloating comes with blood in your stool or black, tarry stools, vomiting, weight loss you cannot explain, or heartburn that keeps getting worse^[5]. These need a clinician, not a cup of tea.

Which tea is best for bloating?

Peppermint, then fennel, chamomile and ginger, in that order. The ranking reflects how directly the research applies to a cup of tea, and whether the tea is likely to feed gas-producing gut bacteria. Peppermint is the only one of the four rated low FODMAP per 250 ml cup; chamomile and fennel tea are rated high^[6].

"Traditional use" in an EMA monograph means the herb is accepted for that purpose because of long-standing use, not because trials proved it works^[2].

Peppermint tea has the strongest case

Peppermint tea for bloating is the best bet, with one big caveat. The trials behind it used peppermint oil, mostly in enteric-coated capsules, in people with irritable bowel syndrome (IBS). Very little research has looked at the leaf used in tea^[12].

What the oil research shows, from the strongest reviews^[7][13]:

• A 2022 meta-analysis of 10 randomized trials (1,030 people with IBS) found peppermint oil beat placebo for overall symptoms (relative risk of not improving 0.65) and for abdominal pain. Four people needed treatment for one to benefit. Side effects were more common, and the evidence quality was very low^[7].
• A review of 33 herbal trials in IBS found peppermint oil effective and well tolerated for short-term relief, one of only three herbs whose positive results have been replicated^[14].
• In functional dyspepsia (upper-belly fullness and discomfort), a Cochrane review rated peppermint plus caraway oil as probably giving a large improvement at four weeks, with moderate certainty^[13].

Menthol and menthone are the main volatile compounds in peppermint oil, and animal studies show the herb relaxes gut tissue^[1]. Whether a cup of tea delivers enough oil to match the capsules has never been tested, so treat the tea as the gentler, unproven version. The EMA lists peppermint leaf tea for indigestion and flatulence based on traditional use^[8].

Is there a downside to drinking peppermint tea?

For most people, little: NCCIH says peppermint tea appears safe, though the long-term safety of large amounts is unknown^[12].

The main downside is heartburn. The EMA advises people with gastroesophageal reflux to avoid peppermint leaf preparations because heartburn may increase, and people with gallstones or other bile duct problems to be cautious. It is not recommended for children under 4^[8].

If reflux is part of your picture, see our GERD guide. If IBS drives your bloating, our IBS protocol covers the wider plan, including the peppermint oil evidence.

Fennel tea is a traditional pick with thin trials

Fennel tea for bloating has official recognition but little direct trial evidence. The EMA accepts fennel seed tea for "mild, spasmodic gastro-intestinal complaints including bloating and flatulence" on the basis of long-standing use^[2].

The human trials tested fennel in capsules, not tea^[15][16]:

• After cesarean section, fennel capsules and dimethicone, an anti-gas medicine, both reduced flatulence in 75 women, with no difference between them. The trial had no placebo group, so some of the improvement may simply have been recovery^[15].
• In 121 people with mild-to-moderate IBS, capsules combining curcumin and fennel essential oil cut symptom scores by 50% versus 26% with placebo over 30 days^[16]. Fennel's own share of that effect is unknown, and the result has not been replicated^[14].

Who should skip it: the EMA does not recommend fennel during pregnancy or breastfeeding, pointing to its estragole content, or for children under 4. Avoid it if you react to related plants such as aniseed, caraway, celery, coriander or dill. Adults should not use it for more than two weeks^[2].

Chamomile tea is gentle but not for everyone

Chamomile tea may ease mild bloating, but the evidence is thin. The EMA accepts chamomile tea for minor gut complaints "such as bloating and minor spasms" on traditional use, and advises seeing a doctor if symptoms last more than a week^[3]. NCCIH says studies have not produced enough reliable evidence to rate chamomile's usefulness for any specific condition^[17].

The one relevant trial gave 64 people 20 drops of chamomile extract or water an hour before gallbladder surgery. Flatulence on the ward was reported by 65.6% in the chamomile group versus 84.4% with placebo. The follow-up lasted only two hours, and this was an extract, not tea^[9].

Who should skip it: anyone allergic to ragweed, chrysanthemums, marigolds or daisies, since severe reactions are possible. Interactions have been reported with warfarin and some drugs processed by the liver, and chamomile might reduce the effect of birth control pills^[17]. Chamomile is also high in FODMAPs, which matters if you have IBS^[6].

Does ginger tea help with bloating?

Probably less than its reputation suggests. Ginger tea for bloating is a top search, but the trials point elsewhere. In 11 people with functional dyspepsia, 1.2 g of ginger in capsules emptied the stomach faster than placebo (half-emptying in 12.3 versus 16.1 minutes). Symptoms did not change^[10].

In a pilot trial of 45 people with IBS, 1 g or 2 g of ginger daily for 28 days did no better than placebo^[18]. A review of clinical trials found ginger's clearest gut benefit is for nausea, at about 1,500 mg a day in divided doses; other gut uses were underpowered^[19].

The EMA does list ginger for bloating and flatulence on traditional use, but as powdered root (0.18 to 1 g three times a day) rather than tea, and not for anyone under 18^[11].

Can you drink too much ginger tea?

Yes. Ginger taken by mouth can cause abdominal discomfort, heartburn, diarrhea and mouth or throat irritation, and NCCIH advises checking with a clinician before using it if you take any medicine or are pregnant^[20]. The EMA's bloating dose tops out at 1 g of powdered root three times a day, with a doctor's visit if symptoms last beyond two weeks^[11]. If nausea comes with your bloating, ginger may make more sense than if trapped gas is the main problem.

What about green tea, caraway and detox teas?

• Green tea: we found no trials for bloating. It is rated low FODMAP, but its caffeine affects gut motility and can trigger symptoms when consumed in excess^[6].
• Dandelion root tea: we found no bloating trials. Monash rates it low FODMAP when brewed weak and moderate when strong^[6].
• Caraway: the EMA accepts caraway tea for bloating and flatulence on traditional use (0.5 to 2 g in 150 ml, one to three times a day), but not for children under 12 or people with liver or gallbladder disease^[21]. Caraway oil is half of the peppermint-caraway combination that performed well in dyspepsia trials^[13].
• "Detox" and laxative teas: check the label for senna, a popular herbal laxative sold without a prescription; high doses taken for longer than recommended can injure the liver^[22]. The AGA suggests considering constipation treatments for bloating when constipation symptoms are present^[23]; see our guide to constipation.

How to brew tea for bloating

Use the amounts the EMA monographs describe, since no trial has defined a tea dose for bloating^[1]:

1. Measure the herb. 1.5 to 3 g of dried peppermint leaf, 1.5 g of fennel seed or 1.5 to 4 g of chamomile flowers per cup; a kitchen scale is more accurate than a spoon^[8][2].
2. Use boiling water. 100 to 150 ml for peppermint or chamomile; 250 ml for fennel^[3].
3. Steep. The fennel monograph specifies 15 minutes^[2]; the peppermint and chamomile monographs give no steeping time.
4. Drink up to three times a day. That is the frequency in the peppermint and fennel monographs; chamomile allows three to four cups^[3].
5. Set a stop date. See a doctor if symptoms persist beyond one week with chamomile or two weeks with peppermint, fennel or ginger^[3][8][11].

Avoid sipping through a straw or adding fizzy mixers, which add swallowed air^[24].

Why some teas make bloating worse

Most intestinal gas comes from two sources: air you swallow and bacteria in your large intestine fermenting carbohydrates your small intestine did not digest^[24]. Herbs with fermentable carbohydrates can add fuel. That may explain why Monash University's gastroenterology department rates chamomile, fennel and oolong tea as high FODMAP, while peppermint and green tea are low^[6].

If a "soothing" tea makes you more bloated, that may be the reason, especially with IBS. Gas produced too high in the gut, as in small intestinal bacterial overgrowth (SIBO), is a separate problem; the American Gastroenterological Association (AGA) reserves breath testing for a small group of at-risk patients^[23]. The same AGA update advises against probiotics as a treatment for bloating, which our review of probiotics for bloating discusses in detail^[23].

If your bloating is sharp gas pain rather than fullness, our guide to trapped gas pain covers what helps it move. Puffiness before a period is mostly hormonal; see period bloating.

When to see a doctor

Tea is for mild, occasional bloating. Talk to a clinician if:

• bloating lasts beyond the one- to two-week limits in the monographs, or keeps coming back^[8];
• your symptoms change suddenly, or come with abdominal pain, constipation, diarrhea or weight loss^[24];
• you notice blood in your stool, black or tarry stools, vomiting or worsening heartburn^[5].

The AGA advises imaging and upper endoscopy for people with alarm features or recently worsening symptoms, and celiac testing where it fits^[23]. In the national survey, 58.5% of people with recent bloating had never sought care for it^[4]. Persistent bloating is worth raising.

This article is for general educational purposes and is not medical advice. Herbal tea amounts here come from European Medicines Agency traditional-use monographs and the studies cited, not from trials of tea for bloating. Talk to a qualified healthcare professional before using herbal remedies regularly, particularly if you are pregnant, immunocompromised, taking prescription medication, or managing a diagnosed condition.