Ginger tea is the most well-supported option for settling an upset stomach, with clinical evidence showing it significantly reduces nausea compared to placebo. But the best tea depends on what kind of stomach trouble you’re dealing with. Bloating, nausea, cramping, and heartburn each respond to different herbal teas, and some popular choices can actually make certain problems worse.
Ginger Tea for Nausea
Ginger is the strongest performer when your main symptom is nausea. The active compounds in ginger root, gingerols and shogaols, work by blocking serotonin receptors in the gut that trigger the vomiting reflex. When your stomach is irritated, cells in your digestive lining release serotonin, which activates those receptors and sends “time to be sick” signals to your brain. Ginger interrupts that chain by binding to the same receptors before serotonin can.
A systematic review published in Frontiers in Pharmacology pooled results from multiple clinical trials and found that ginger significantly improved nausea symptoms compared to placebo. It was roughly comparable to vitamin B6, a standard recommendation for pregnancy-related nausea, though B6 had a slight edge in overall symptom improvement. For everyday queasiness from food, motion, or a stomach bug, ginger tea is a solid first choice.
Since ginger is a root, it needs hotter water and more time than leaf-based teas. Use boiling water (around 210°F) and steep for 10 to 20 minutes. Fresh sliced ginger works well: cut four or five thin coins from a knob of ginger and let them simmer. Pre-made ginger tea bags are convenient but typically deliver a milder dose.
Peppermint Tea for Cramping and Spasms
If your upset stomach feels more like cramping or tightness than nausea, peppermint tea is a better fit. Menthol, the primary active compound in peppermint, relaxes the smooth muscle lining your digestive tract. This can ease the spasms that cause sharp, wave-like stomach pain, particularly after eating too much or eating something that didn’t agree with you.
There’s one important caveat: peppermint also relaxes the ring of muscle between your esophagus and stomach. If your stomach trouble involves acid reflux, heartburn, or a burning sensation in your chest, peppermint tea can make it worse by allowing stomach acid to flow back upward. If you have GERD or frequent heartburn, skip peppermint and try one of the other options below.
Chamomile Tea for Inflammation and Stress-Related Symptoms
Chamomile works differently from ginger or peppermint. Its key compound, apigenin, reduces inflammation by suppressing the pathways your body uses to ramp up its inflammatory response, including the one responsible for producing COX-2, the same enzyme that over-the-counter anti-inflammatory drugs target. This makes chamomile especially helpful when your stomach is upset from irritation or stress rather than a specific food.
Chamomile also has mild muscle-relaxing properties, so it can ease general digestive tension. It’s the gentlest option on this list, which makes it a reasonable starting point if you’re not sure what’s causing your symptoms or if your stomach just feels “off.” Chamomile is a flower-based tea, so steep it in water just under boiling (around 190 to 200°F) for 3 to 7 minutes.
Fennel Tea for Bloating and Gas
When the main problem is a swollen, gassy, uncomfortable belly, fennel tea has the most targeted effect. Research published on its mechanism found that fennel acts on calcium channels in the smooth muscle of the stomach wall. By blocking calcium from entering muscle cells in the upper stomach, fennel relaxes the area and reduces the spasms that trap gas and create that tight, distended feeling.
Interestingly, fennel has a dual action: it relaxes the upper stomach while potentially promoting movement in the lower stomach, which helps move food and gas through your system rather than letting it sit. To make fennel tea, lightly crush about a teaspoon of fennel seeds (this helps release the active compounds) and steep them in boiling water for 5 to 10 minutes. The tea tastes mildly sweet with a licorice-like flavor.
Licorice Root Tea for Heartburn
If your upset stomach centers on a burning feeling, licorice root tea addresses the problem from a different angle than antacids. Licorice root contains over 300 flavonoids and about 20 triterpenoids that protect and repair the mucous lining of your stomach. Clinical studies have shown that flavonoid-rich licorice extracts can enhance mucosal repair and reduce symptoms of functional dyspepsia, including heartburn and regurgitation.
Rather than neutralizing acid that’s already there, licorice root strengthens the barrier between your stomach lining and the acid itself. Look for deglycyrrhizinated licorice (DGL) products if you plan to use it regularly, since a compound called glycyrrhizin in standard licorice root can raise blood pressure with frequent use. As a root tea, steep it in boiling water for 10 to 20 minutes.
Teas That Can Make Things Worse
Not every tea helps a sour stomach. Black tea, green tea, and other caffeinated teas contain high levels of tannins, compounds that bind to proteins and can irritate the digestive tract. Drinking these on an empty stomach is particularly likely to trigger nausea or make existing nausea worse. If you do drink caffeinated tea while your stomach is unsettled, pairing it with a small amount of food helps, because proteins and carbohydrates bind with tannins before they can irritate your gut lining.
Caffeine itself also stimulates stomach acid production, which is the last thing you need if acid or inflammation is behind your symptoms. Stick to herbal, caffeine-free options until your stomach settles.
Matching Your Symptoms to the Right Tea
- Nausea or queasiness: Ginger tea, steeped 10 to 20 minutes from fresh root or a strong tea bag.
- Cramping or spasms (without heartburn): Peppermint tea.
- Bloating and trapped gas: Fennel seed tea, with seeds lightly crushed before steeping.
- Burning or heartburn: Licorice root tea (DGL form for regular use) or chamomile.
- General discomfort or stress-related stomach upset: Chamomile tea.
You can also combine compatible teas. Ginger and chamomile work well together for nausea with general inflammation. Fennel and peppermint pair naturally for bloating with cramping, as long as reflux isn’t part of the picture. Start with one cup and give it 20 to 30 minutes to take effect before deciding whether a second cup helps.