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Kombucha Caffeine Content: Is It Good for Dieting?

메리성형외과의원 · 메리성형외과의원 · January 31, 2024

Hello. We are Mary Plastic Surgery Clinic, pursuing natural and beautiful changes. If we were to pick out last year’s much-loved food keyword, we couldn’t leave out the “zero” tren...

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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: 메리성형외과의원

Original post date: January 31, 2024

Translated at: April 25, 2026 at 8:33 AM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

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Hello. We are Mary Plastic Surgery Clinic, pursuing natural and beautiful changes.

If we were to pick out last year’s much-loved food keyword, we couldn’t leave out the “zero” trend.

The key point was to replace the sugar and sweeteners in many people’s favorite drinks made with high-fructose corn syrup while keeping the taste as similar as possible.

As more people became mindful of sugar and health, the number of people trying to replace carbonated drinks in particular increased significantly.

In fact, carbonated drinks are known to contain more sugar than you might think, and they are among the beverages that raise blood sugar very quickly, so they are considered to carry a high risk of obesity and adult diseases.

For that reason, many people who consume carbonated drinks have also tried switching to zero-calorie sodas or sparkling water.

At the same time, there was another drink known to be beneficial for health.

Kombucha is a fermented beverage that develops carbonation during the fermentation process and is known to contain healthy ingredients in the body, so it is increasingly being looked to as a substitute for carbonated drinks by people on a diet.

Today, let’s take a look at the benefits of kombucha and the caffeine content in kombucha.

What is kombucha?

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Kombucha is a beverage made by fermenting tea such as green tea or black tea with sugar, SCOBY, yeast, and other ingredients.

Because of this, it cannot be said to be completely free of sugar.

Even so, the reason it is known to help with dieting and health is the SCOBY.

SCOBY is also called black tea fungus yeast, and it is a beneficial microorganism that helps ferment kombucha and is said to produce good compounds such as polyphenols and glucuronic acid through fermentation.

Because of this fermentation, kombucha is characterized by a sour taste similar to fermented vinegar and a small amount of carbonation.

You can also taste the flavor and aroma of the black tea or green tea used as the base, along with a slight astringency from the tea.

Because many people have recently been drinking it as a substitute for carbonated drinks, you may think it is a relatively new beverage, but kombucha is said to be a drink with a long history, with records saying that even Qin Shi Huang drank it.

What are the benefits of kombucha?

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So, what are the benefits of kombucha?

✅ Dieting

Many people probably know that drinking kombucha instead of carbonated drinks can help with dieting.

Kombucha contains 15 kcal per 100 g, making it a low-calorie beverage, so it is said to be better than regular carbonated drinks.

In addition, SCOBY in kombucha plays a role in producing probiotics and is also known to increase basal metabolic rate by promoting metabolic activity because it improves immunity and digestive ability.

During the fermentation process of kombucha, a small amount of alcohol can also be produced along with carbonation, and this small amount of alcohol may help suppress appetite, so it is said to be effective for dieting.

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✅ Fatigue recovery

As kombucha ferments, organic acids are produced along with compounds such as polyphenols.

Organic acids, including antioxidant compounds, promote metabolic activity and prevent the accumulation of lactic acid, a fatigue-causing substance produced in the body.

In the case of glucuronic acid, it helps the liver detoxify and helps expel toxins from the body, reducing the burden on the liver and kidneys and improving overall fatigue.

✅ Prevention of cardiovascular disease

Another reason kombucha is in the spotlight is that it is known to help prevent cardiovascular disease.

Various antioxidant substances are produced from the tea leaves and yeast that form the base of kombucha.

Because of this, it is said to be excellent at removing inflammation and reactive oxygen species from the body.

What should you watch out for with kombucha?

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Today, we looked into the benefits of kombucha.

Compared with regular high-fructose corn syrup, kombucha contains less sugar, but because sugar must be added for fermentation and to feed the beneficial bacteria, it does contain sugar.

For that reason, excessive consumption can actually have a negative effect on dieting.

In addition, as mentioned earlier, children, pregnant women, and older adults who are sensitive to the alcohol produced during the fermentation process should be careful when consuming it.

Also, because fermentation creates acidity similar to vinegar, people with weak stomachs may experience heartburn, indigestion, and other symptoms.

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Above all, kombucha is a beverage that contains caffeine because it is made by fermenting green tea or black tea.

The caffeine content in kombucha can vary slightly depending on the production process and the type of tea used.

Even if it is not as strong as coffee, if you are usually sensitive to caffeine, we recommend checking the caffeine content of commercially sold kombucha before consuming it.

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