Kombucha is the result of the fermentation of sweetened tea, and it is used as a functional food. The etymology of the word "Kombucha" is unclear, though it is known to have Japanese roots.

You can make your own kombucha at home using water, white granulated sugar, blacktea, and looseleaf.

No it is not

Consumption of kombucha tea has been observed to cause stomach upset, yeast infections , allergic reactions, nausea , and headache . Persons with stomach ulcers may find that kombucha increases their symptoms.

Kombucha is a fermented, lightly effervescent, sweetened black or green tea drink popular for its health claims. To differentiate it from the bacteria and yeast culture, the beverage is sometimes called kombucha tea. The addition of juice, spices, fruit, and other flavourings is common.