Kombucha may aid in managing blood sugar levels in individuals with Type 2 diabetes.

Kombucha may aid in managing blood sugar levels in individuals with Type 2 diabetes.

Kombucha: A Tasty Solution for Lower Blood Sugar Levels?


Kombucha, a fermented tea that has become increasingly popular in recent years, might just be more than just a tasty, bubbly drink. New research is suggesting that consuming kombucha may have potential health benefits, particularly in relation to blood sugar regulation, especially for those with type 2 diabetes.

Dr. Daniel Merenstein, the director of family medicine research at Georgetown University in Washington, D.C., led a study that investigated the effects of kombucha on blood sugar levels. The study, although small with only 12 participants, provided interesting insights into the potential of this drink. It is worth noting that kombucha has been consumed in China since 200 B.C., but only gained popularity in the United States in the 1990s.

The motivation behind the study was sparked by the popularity of apple cider vinegar and kombucha in the market. Dr. Merenstein, along with his team, decided to explore the potential benefits of kombucha as a more palatable alternative to apple cider vinegar. They conducted a four-week study where participants consumed 8 ounces of kombucha or a similarly flavored placebo drink daily. The results were promising, demonstrating a significant reduction in average fasting blood sugar levels for those who consumed kombucha compared to the placebo group.

While both groups experienced a drop in blood sugar, the change observed in the placebo group was not statistically significant. This suggests that kombucha itself played a role in regulating blood sugar levels. However, it is important to note that the study’s sample size was small, and further research is needed to validate these findings.

Kombucha is created through the fermentation of tea with bacteria and yeast, which produces acetic acid. During fermentation, a symbiotic culture of bacteria and yeast, known as a SCOBY, forms, which is believed to have probiotic properties. Proponents also claim that kombucha can help with various health conditions, such as blood pressure and cancer. Nonetheless, most of these claims remain anecdotal, with limited scientific evidence to support them.

Dr. Rifka Schulman-Rosenbaum, director of inpatient diabetes at Long Island Jewish Medical Center, warns against placing too much emphasis on these study results. She explains that while the study exhibited a slight decrease in blood sugar levels among the kombucha drinkers compared to the placebo group, drawing strong conclusions from this study alone is challenging.

Schulman-Rosenbaum raises a valid concern regarding patients who may become overly focused on alternative remedies like kombucha, potentially neglecting the importance of regular medical check-ups and adherence to prescribed medications. She emphasizes the need for patients to maintain a healthy lifestyle, including monitoring physical activity, food intake, weight, and regular medical visits.

Despite the enthusiasm surrounding kombucha and its potential health benefits, there remains a lack of scientific data. However, Dr. Merenstein hopes that this study will inspire further research, particularly from institutions like the National Institutes of Health (NIH), to delve deeper into the mechanisms and potential benefits of kombucha as a blood sugar regulator.

Overall, kombucha offers a unique and flavorful option for those seeking an alternative beverage. While it may have potential benefits in managing blood sugar levels, it is essential to approach it with caution and not disregard conventional medical advice and treatments. As the saying goes, “Everything in moderation.” So, if you fancy a glass of kombucha, go ahead and enjoy it, but remember that maintaining a healthy lifestyle and working closely with your healthcare provider remain crucial in the management of diabetes.

The findings of this study were published in Frontiers in Nutrition and should encourage further investigations on the effects of kombucha. In the meantime, it is essential to rely on trusted medical professionals for guidance on managing diabetes and prediabetes.

Sources – Daniel Merenstein, MD, professor, human sciences, Georgetown University School of Health, professor and director, family medicine research, Georgetown University School of Medicine, Washington, D.C. – Rifka Chaya Schulman-Rosenbaum, MD, associate professor, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Great Neck, N.Y., and chief resident, Long Island Jewish Medical Center, Queens, N.Y. – Frontiers in Nutrition, Aug. 1, 2023

More information For more on prediabetes, see the U.S. Centers for Disease Control and Prevention.