Is Lemon Balm Tea Good for Diarrhea?

Partly: lemon balm tea may help during mild diarrhea by replacing some lost water, but it is not a proven treatment for diarrhea. There is no good clinical evidence that lemon balm tea stops loose stools. Use it only as an extra fluid, and choose oral rehydration solution when you need to replace lost salts as well as water.

Can lemon balm tea help with diarrhea?

If your symptoms are mild and you can drink normally, unsweetened lemon balm tea can contribute to your fluid intake. It does not replace the salts lost with diarrhea and should not be relied on to prevent or treat dehydration.

Diarrhea has many possible causes, including infections and medication effects. Lemon balm tea has not been shown to address those causes or reliably shorten an episode. If symptoms are severe, persistent or accompanied by warning signs, seek medical care rather than trying to manage them with tea.

How might lemon balm tea work?

The established benefit is hydration: the water in lemon balm tea helps replace some of the fluid lost in loose stools. Drinking it does not demonstrate that lemon balm itself is acting on the diarrhea.

Lemon balm has a history of traditional use for digestive complaints, and researchers have investigated its effects on intestinal muscle. That does not establish how a cup of lemon balm tea affects the human gut, or whether it reduces cramping or stool frequency.

What does the evidence say?

The evidence supplied for this question is limited to laboratory research, not a clinical trial of lemon balm tea in people with diarrhea. A 2023 study of isolated chicken intestine examined the effects of lemon balm extract on intestinal contractions.

In that experiment, the extract increased some measures of intestinal muscle activity. The findings cannot tell us whether lemon balm tea would speed up or slow down the human gut, relieve diarrhea or cause it to worsen. An extract applied to isolated animal tissue is different from tea consumed by a person.

There is also no established therapeutic dose of lemon balm tea for diarrhea based on this evidence. A recipe should therefore be treated as a way to prepare a drink, not as a treatment dose.

How can you use lemon balm tea safely?

For mild symptoms, you can sip a small amount of unsweetened lemon balm tea alongside other appropriate fluids. If it seems to worsen your symptoms, stop drinking it. The following cold infusion is a food-style preparation, not a proven diarrhea remedy.

Ingredients

• 1 liter drinking water (about 4¼ US cups)
• 8–12 fresh lemon balm leaves or 2 sprigs (about 5 g)

Directions

1. Wash your hands, a pitcher and the lemon balm leaves under running water.
2. Add the leaves and drinking water to the pitcher.
3. Refrigerate for 2–4 hours to infuse, then strain if desired.
4. Keep refrigerated and drink within 24 hours of preparation. Discard any leftovers after that time.

Replace salts as well as fluid

Oral rehydration solution is designed to replace water and salts lost through diarrhea. It is especially important for children and people at greater risk of dehydration. Prepare it according to the package directions, and do not substitute lemon balm tea for the water specified on the package.

If nausea makes drinking difficult, try frequent small sips; seek care if you cannot keep fluids down. For a broader comparison, see the best drinks for diarrhea.

Who should be careful, and when should you see a doctor?

Ask a clinician before using lemon balm if you are pregnant or breastfeeding, have a thyroid condition, or take thyroid medication or sedatives. Its safety and potential interactions in these circumstances are not well established. Do not stop prescribed medication because you have diarrhea.

Children can become dehydrated quickly. Contact a healthcare professional promptly if a child has diarrhea, particularly an infant, and ask about appropriate oral rehydration. Do not use lemon balm tea instead of breast milk, formula or recommended rehydration solution.

Seek urgent medical care for bloody or black stools, severe abdominal pain, confusion, fainting, inability to keep fluids down, or signs of significant dehydration such as very little urination. Seek medical advice promptly for a high fever or if you are pregnant, older, immunocompromised or have another serious medical condition.

Adults should contact a clinician if diarrhea lasts more than 2 days or is getting worse. Also mention diarrhea that begins during or after a course of antibiotics.