Green tea extract improves gut health and reduces blood sugar – healing practice

Health Benefits of Taking Green Tea Extract

The taking of green tea extract over a period of only four weeks reduces blood sugar levels while improving gut health by reducing inflammation and intestinal permeability.

In a new study by experts from Ohio State University and the Pennsylvania State University investigated whether green tea extract can relieve intestinal inflammation in people with metabolic syndrome. The results are published in the journal Current Developments in Nutrition.

Green tea health benefits

There is plenty of evidence that higher consumption of green tea is associated with good cholesterol, glucose and triglyceride levels, but none of it has linked green tea’s effects on the gut to these health benefits‘ explains the author of the study Dr. Richard Bruno of the Ohio State University in a press release.

The current research represents the first investigation to analyze whether health risks associated with metabolic syndrome can be reduced by the anti-inflammatory effects of green tea in the gut.

Participants took green tea extract for 28 days

The researchers analyzed 19 healthy participants and 21 people with metabolic syndromehow it affects taking green tea extract (890 mg catechins) over a period of 28 days.

The absorbed dose of green tea extract per day corresponded to Amount of five cups of green tea. All participants were then instructed to take a placebo for an additional 28 days after a full month without taking any supplements.

The participants adhered to one during the treatment with the green tea extract and also during the later placebo phase low-polyphenol diet. According to the researchers, this ensured that all results were due solely to the effect of the green tea.

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Effect of green tea in the intestine

The new study found that green tea extract blood sugar (glucose) lowers and the intestinal inflammation and intestinal permeability reduced in healthy people.

Fasting blood sugar levels lower thanks to green tea extract

After taking the green tea extract, all participants showed that the Fasting blood sugar levels were significantly lowercompared to the values ​​after taking the placebo, the experts report.

Other Beneficial Effects of Green Tea Extract

In addition, there was one in the stool samples of the participants Reduction of pro-inflammatory proteins been detectable. By evaluating the sugar ratio in the urine, it was shown that the so-called intestinal permeability of the small intestine caused by the intake of green tea positively influenced became.

The permeability of the intestine (also known as Leaky Gut the researchers explain. Through this process, become one mild chronic inflammation promoted.

This uptake of gut products is believed to be a causative factor in obesity and insulin resistance, which are central to all cardiometabolic diseases“, so dr. Bruno.

The extract can lower the blood sugar of healthy people, but also of people with metabolic syndrome, within just one month, whereby the reduction in blood sugar achieved appears to be related to a reduction in intestinal permeability and a reduction in intestinal inflammation, the researchers conclude. (as)

Author and source information


  • Joanna Hodges, Min Zeng, Sisi Cao, Avinash Pokala, Shahabbedin Rezaei, et al.: Catechin-Rich Green Tea Extract Reduced Intestinal Inflammation and Fasting Glucose in Metabolic Syndrome and Healthy Adults: A Randomized, Controlled, Crossover Trial; in: Current Developments in Nutrition (veröffentlicht 14.07.2022), Current Developments in Nutrition
  • Ohio State University: Green tea extract promotes gut health, lowers blood sugar (veröffentlicht 26.07.2022), Ohio State University

Important NOTE:
This article contains general advice only and should not be used for self-diagnosis or treatment. He can not substitute a visit at the doctor.



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