Ginger tea is the best overall choice for an upset stomach, with the strongest evidence behind it for relieving nausea. But “upset stomach” covers a range of symptoms, and the ideal tea depends on whether you’re dealing with nausea, cramping, bloating, or acid-related discomfort. Here’s what works for each.
Ginger Tea for Nausea
Ginger is the most studied herbal remedy for nausea, and the evidence is strong. The active compounds in ginger block the same receptors in your gut that many prescription anti-nausea medications target. These receptors respond to serotonin, a chemical messenger that triggers the vomiting reflex. In lab studies, one of ginger’s key compounds reduced serotonin signaling by roughly half at higher concentrations, which helps explain why ginger works so reliably against nausea from motion sickness, morning sickness, and post-surgical recovery.
Clinical trials have used ginger in doses ranging from 250 mg to 2 g per day, typically split across three or four doses. Interestingly, 1 g per day appears to work just as well as 2 g, so more isn’t necessarily better. For tea, that translates to about a thumb-sized piece of fresh ginger root, sliced or grated. Since ginger is a root, it needs more steeping time than dried herbs: 15 to 30 minutes in boiling water to extract enough of its active compounds. A quick five-minute steep won’t do much.
The FDA considers ginger generally recognized as safe, but large amounts can cause heartburn or mild digestive irritation in some people, which defeats the purpose if your stomach is already upset. Start with a modest cup and see how you respond.
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 directly counteracts the involuntary muscle contractions that cause cramping and spasms in your gut.
There’s one important caveat. The same muscle-relaxing effect that soothes your intestines also relaxes the valve between your stomach and esophagus. If your stomach trouble involves acid reflux, heartburn, or a burning feeling in your chest, peppermint can make it worse by letting stomach acid flow upward. For reflux-related discomfort, skip peppermint entirely and try one of the other options below.
Dried peppermint tea needs up to 15 minutes of steeping in boiling water for full potency. Most people steep it for only three to five minutes, which produces a pleasant flavor but extracts fewer of the compounds that actually help.
Fennel Tea for Bloating and Gas
When your upset stomach is really about bloating, pressure, or trapped gas, fennel tea is worth trying. Fennel contains a compound called anethole that relaxes the muscles of your gastrointestinal tract, which can help release trapped gas and ease that uncomfortable, distended feeling. It has a mild licorice-like flavor that most people find pleasant.
Fennel tea is widely used in traditional medicine for infant colic and adult bloating alike. You can make it from crushed fennel seeds (about a teaspoon per cup) steeped in boiling water for 10 to 15 minutes, or buy it in pre-made tea bags.
Chamomile Tea for General Discomfort
Chamomile is the classic “soothing” tea, and while the scientific evidence for its digestive benefits is thinner than for ginger or peppermint, it has a long history of traditional use for nausea, gas, and general stomach upset. Animal studies suggest it may help with diarrhea and protect against stomach ulcers, though human research is still limited. Its anti-inflammatory properties are well documented, which may partly explain why it seems to calm an irritated digestive system.
What chamomile does reliably is promote relaxation and reduce anxiety, and since stress and anxiety can directly worsen digestive symptoms, this indirect effect matters. If your stomach trouble tends to flare up when you’re tense or anxious, chamomile is a solid choice. Steep dried chamomile in boiling water for up to 15 minutes.
Licorice Root Tea for Heartburn and Acid
If your upset stomach involves heartburn, acid reflux, or a gnawing pain that worsens on an empty stomach, licorice root tea targets those specific problems. It works by increasing mucus production in the stomach lining, which creates a protective barrier against acid. A 2017 study in 58 adults with acid reflux found that daily licorice root was more effective at reducing symptoms over two years than commonly used antacids. Another study in 120 adults found it helped eliminate the bacteria (H. pylori) that cause stomach ulcers when used alongside standard treatment.
Licorice root tea has a naturally sweet flavor, but it comes with a real safety consideration. A compound in licorice called glycyrrhizin can raise blood pressure and lower potassium levels when consumed in large amounts over time. Look for “deglycyrrhizinated licorice” (DGL) products if you plan to use it regularly, as these have the problematic compound removed while keeping the stomach-protective benefits.
Teas to Avoid on an Upset Stomach
Not all teas help. Black tea contains high levels of tannins, compounds that can cause nausea on their own, especially on an empty stomach. The same applies to green tea, though to a lesser degree. If your stomach is already bothering you, caffeinated teas can also stimulate acid production and make things worse. Eating something small before drinking black or green tea helps, since proteins and carbohydrates from food bind to tannins and reduce their irritating effect, but herbal teas are a safer bet when your stomach is actively upset.
Quick Guide by Symptom
- Nausea or queasiness: Ginger tea, steeped 15 to 30 minutes
- Cramping or spasms: Peppermint tea, steeped up to 15 minutes
- Bloating or gas: Fennel tea, steeped 10 to 15 minutes
- General upset or stress-related symptoms: Chamomile tea, steeped up to 15 minutes
- Heartburn or acid reflux: Licorice root tea (avoid peppermint)
All herbal teas should be prepared with boiling water at 212°F (100°C) for the best extraction of active compounds. Lukewarm water won’t pull enough of the beneficial substances from roots and dried herbs to make a meaningful difference.