Fermented Food

Kombucha

65/100

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A fizzy, tangy fermented tea that normally contains only trace alcohol -- worth checking, not assuming, for anyone who abstains from alcohol.

A glass of amber, faintly fizzy kombucha beside a pale scoby.

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🌱 What it is

Kombucha is sweetened tea fermented with a culture of bacteria and yeast (a "SCOBY"), which produces carbonation, tangy acids, and, as a natural side effect of yeast fermentation, a small amount of alcohol.

📜 Where it comes from

Kombucha's exact origins are debated, but historical accounts trace fermented tea drinks to East Asia, with some tradition placing early kombucha-like drinks in China over a thousand years ago before the practice spread through Russia and Eastern Europe. It was often prepared at home by passing a living culture, sometimes called a mother, from household to household. Kombucha entered Western health food markets more broadly in the late 20th and early 21st centuries.

✨ Why it's good for you

Provides live cultures that may support gut health
A flavorful, lower-sugar alternative to soda for some people
Contains antioxidants carried over from the tea it’s brewed from

🥗 Nutrition

Per 1 cup (240ml) · about 30 calories

Live probiotic cultures
Trace B vitamins
Small amount of natural sugar and acids (varies by brew)

Source: General estimate — varies by brand/brew

🥄 How to use it

Drink chilled, in modest amounts (4-8 oz is a common serving); check the label or ask about alcohol content before serving to anyone who abstains from alcohol.

Why it works: Food scientists explain kombucha's fizz and tang as the product of bacteria and yeast fermenting sweetened tea, a process that also produces small amounts of alcohol and organic acids some researchers associate with gut health.

🧺 Other forms of Kombucha

These used to be pages of their own. They are the same remedy in a different form — the differences worth knowing are below.

Kombucha TeaFood

A fermented tea traditionally enjoyed to support gut health and connective tissue.

How this form is used: Drink a small glass (4-8 oz) with a meal, starting slowly to see how it agrees with you.

Cautions for this form

Contains a small amount of alcohol and caffeine from fermentation
Avoid during pregnancy and with compromised immunity
Choose commercially bottled or carefully home-brewed batches to avoid contamination

Learn more: MSKCC About Herbs — Kombucha

Natural Remedies Encyclopedia (7th ed.)

Shop organic kombucha tea on Amazon

Formerly its own page at /remedies/kombucha-tea, now redirected here.

⚠️ Cautions

Kombucha is sold as "non-alcoholic," but independent lab testing has repeatedly found that this label doesn't always match what's in the bottle. One published analysis of commercial U.S. kombucha found ethanol levels of roughly 1.1% to 2% by volume in some products -- well above the 0.5% ABV line the U.S. Alcohol and Tobacco Tax and Trade Bureau uses to define a "non-alcoholic" drink -- and found that levels climbed the longer a bottle sat in storage. Home-brewed batches can ferment further still. We share this as research to weigh, not a verdict on any one bottle: it's worth knowing, not assuming, for anyone in recovery from alcohol use, who is pregnant or breastfeeding, or who abstains from alcohol on conviction or faith grounds (including many Seventh-day Adventists and other Christians who hold to abstinence). Kombucha also carries some caffeine from the tea it's brewed from. Those with a compromised immune system should be cautious with any live-culture ferment.

📚 Learn more

🌿 Deeper natural detail

🩺 The conventional view

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💬 Ask Remy about Kombucha

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📚 Resource confidence

Based on mentions in health references

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