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What Science Says About the Potential Health Benefits of Kombucha

Kombucha is often hailed as a healing elixir — but are the health claims too good to be true?

Kombucha is tasty and easy to find in stores — but are the health claims backed by science?Credit: Sheila Fitzgerald/Shutterstock

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We live in interesting times. Health consciousness is in vogue, and so is mistrust of mainstream medicine. “Ancient” is often understood to mean “effective.” So it’s no surprise that kombucha, a fermented tea that dates back some 2,000 years, is the wellness drink of choice for many.

Pronounced “kom-BOO-cha,” the drink is a fusion of sugar, bacteria, yeast and, sometimes, fruit. Many people enjoy the tart, slight sweet taste of kombucha and may use it as a stand-in for soda or cocktails. But, undoubtedly, kombucha’s popularity is also powered by its purported health benefits — rumors that can be traced to the fermented tea’s origins.

Proponents of kombucha say it supports digestion, metabolism, immunity, liver function and more. Staunch kombucha evangelists say it can fight a variety of ailments, from hair loss to obesity to diabetes — even cancer and AIDS. A bit of “booch,” as it’s affectionately known, is ...

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