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Green Tea Health Benefits: The Latest Science

November 14, 2012


Green Tea has a wide range of health benefits and have been used medicinally for many hundreds of years. A paper by Rosen focuses on Green Tea catechins and reviews their biologic properties and potential mechanisms of action. It is suggested that Green Tea catechins can have antiviral, antiproliferative, and immunostimulatory activity based on evidence from in vitro and in vivo studies. The work includes two preclinical in vitro studies with sinecatechins.

Control Blood Sugar Levels

Green Tea has been recently in the news for its ability to “dull” spikes in Blood sugar levels after consumption of starch in an animal model system. A team at Penn State University, led by Dr J. Lambert, showed that Green Tea catechins can reduce blood glucose levels by about 50% when compared to controls.

Pulmonary Fibrosis

Pulmonary fibrosis manifests itself as shortness of breath. Many patients describe it as a feeling of “breathlessness” and often ignore the occasional difficulty with breathing, attributing it to just “getting older” or “being out of shape.” As the condition progresses and the damage to the lungs become more severe, breathlessness may occur with minor physical activity such as showering, getting dressed. A history of smoking has been associated with an increased risk of IPF, and a variety of published studies show that, on average, two thirds of those with IPF have a history of smoking.

A study by Hamdy et al investigated the protective effect of green tea extract (GTE) amongst others on experimentally induced pulmonary fibrosis in a aninal system. The data indicates the possibility of using Green Tea and other treatments as protective agents with chemotherapy and as protective agents for lung fibrosis.


Periodontitis is inflammation and infection of the ligaments and bones that support the teeth.

Green tea extract can act as an anti-microbial agent due to its bioactive polyphenols (catechins). Catechins have anti-cariogenic, anti-inflammatory, anti-collagenolytic properties. Chava & Vedula studied the release of green tea gels and its clinical effects on chronic periodontitis patients. The results suggest that Green Tea can reduce pockets and inflammation during a 4 week clinical trial in chronic periodontitis patients.

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