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Recent Research on Health Benefits of Green Tea

July 29, 2012

We visited the scientific journals over the last few days to see what the were saying about Green Tea, a key ingredient in the healthy natural infusions: CALM&RELAXSLIM&FITUP&GO and YOUNG&FUN.

Anti-inflammatory Properties Black Tea vs. Green Tea

A study was conducted by Chatterjee et al to evaluate and compare the anti-inflammatory effects of extracts of green tea and black tea leaves (Camellia sinensis). The anti-inflammatory property ofGreen tea was found to be more active than black tea, possibly due to the higher flavonoid contents of green tea.

Oral Protection

Oral peroxidases (OPO) are salivary peroxidases involved in defense mechanisms in the mouth. The objective of a study by Narotzki, et al was to elucidate the interaction between Green Tea EGCG (Epigallocatechin 3-gallate) and peroxidases. The results suggest that a tea consumer’s oral cell covering may have better protection against the deleterious effects of hydroxyl radicals. There was higher peroxidase activity upon green tea drinking which could provide an extra protection against oxidative stress in the oral cavity.


Osteoarthritis is a condition caused in part by injury, loss of cartilage structure and function, and an imbalance in inflammatory and anti-inflammatory pathways. It primarily affects the articular cartilage and bone in the joints and results in joint failure, leading to pain with any weight bearing activity like walking and standing. There is no cure for osteoarthritis, as it is very difficult to restore the cartilage once it is destroyed. A review by Shen et al discusses the effects of commonly consumed polyphenols, including epigallocatechin gallate from Green Tea with an emphasis on molecular anti-osteoarthritic mechanisms.

Cardiovascular Health

Consumption of tea (Camellia sinensis) is known to improve vascular function and is linked to lowering the risk of cardiovascular disease. Endothelial nitric oxide (NO) is the key regulator of vascular functions in endothelium. Siamwala et al, demonstrated that Green Tea promotes nitric oxide (NO) production in endothelial cells. The results demonstrate that l-theanine, a Green Tea component, enhanced NO production and thereby vasodilation in the artery. The results suggest of l-theanine mediates vascular health and Green Tea consumption could help.

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