February 17, 2013
A study published in the American Journal of Clinical Nutrition in 2009 looked at data from 1003 Japanese subjects with an age of greater than 70 years old. Each completed a self-administered questionnaire and then had a cognitive function test called the Mini-Mental State Examination. Higher consumption of green tea was associated with a lower rate of cognitive decline. The highest consumption category was drinking 2 or more cups per day while the lowest consumption category was drinking 3 or less cups per week.
Green tea consumption has been linked with a decrease incidence of cancer, heart disease, stroke, and diabetes. It has also been shown to be an effective fat burner, immunoprotective agent, and antimicrobial. Since green tea has been less processed than black tea it is higher in potent antioxidants, the most notable is the catechins. Catechins are water soluble antioxidants that are 25 to 100 times more potent that vitamin C and E.
If you choose to start drinking green tea always get an organic variety. If the leaves are sprayed with pesticides they will be concentrated in the drying process. To be effective try to drink 1-4 cups per day. This is a very easy way to increase your antioxidant capacity and in turn reduce oxidative stress that is constantly bombarding our systems.
References:
Green tea consumption and cognitive function: a cross-sectional study from the Tsurugaya Project. Am J Clin Nutr.2006 Feb; Vol. 83, No. 2, 355-361
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Dr. Groneck
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