Tuesday, March 3, 2009

Recent Benenfits Of Tea …




We've all seen positive research results about the benefits of green tea. Well now there's a study documenting positive benefits resulting from drinking both green or black tea.

Dr. Lenore Arab, PhD, Professor, Department of Medicine and Dept of Biological Chemistry, David Geffen School of Medicine at UCLA explained, "This Meta analysis suggests that daily increase in consumption to three cups of tea per day could lower the risk of ischemic stroke by 21 per cent." Stroke is the second most common cause of death globally, claiming 5.4 million lives per year. It is a major cause of disability and has a significant impact on quality of life. Of the two types of stroke - ischemic and hemorrhagic - ischemic stroke accounts for around 83 per cent of all stroke cases.




The study results indicated that drinking three or more cups of green or black tea a day may reduce the risk of stroke by 21 per cent. And the more you drink, the greater the cuts in stroke risk, according to this meta-analysis conducted at UCLA on nine studies involving 4,378 strokes among 194,965 individuals.



Green tea contains between 30 and 40 per cent of water-extractable polyphenols, while black tea (green tea that has been oxidized by fermentation) contains between 3 and 10 per cent. Oolong tea is semi-fermented tea and is somewhere between green and black tea. The four primary polyphenols found in fresh tea leaves are epigallocatechin gallate (EGCG), epigallocatechin (EGC), epicatechin gallate (ECG),  and epicatechin (EC). Though no one is certain which compounds in tea are responsible for this effect, researchers have speculated that the antioxidant epigallocatechin gallate (EGCG) or the amino acid theanine may be what helps. Antioxidants are believed to help prevent coronary artery disease.

"And we do know that theanine is nearly 100-percent absorbed," the head of the research team reported. "It gets across the blood-brain barrier and it looks a lot like a molecule that's very similar to glutamate, and glutamate release is associated with stroke. "It could be that theanine and glutamate compete for the glutamate receptor in the brain,".

"In recent years, a body of scientific evidence has shown that regular tea drinking can have an important role in healthy fitness," says Douglas Balentine, Ph.D., Lipton Institute of Tea. "This new study provides further support that regular tea drinking may be one of the most actionable lifestyle changes a consumer can make to help maintain heart health."



All these studies continue to contribute to our belief in the power of tea as an ingredient in AdvoCare products.

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