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Small Study Finds Green Tea Improves Memory in the Elderly

A small, non-placebo controlled study has found that green tea may be helpful for elderly individuals with cognitive dysfunction. Published in the open-access nutrition journal, Nutrients, the study examined the effects of giving 2 grams of green tea powder daily to participants for three months. The tea powder contained 227 mg of catechins and 42 mg of theanine, both of which are active components of green tea and have been reported to improve cognition in animal studies. In addition, the participants, who all had some form of dementia and a mean age of 88, continued to consume their normal amounts of green tea, which the researchers also took into account. Here’s what they discovered:

  • Memory scores, particularly those related to short-term memory, improved significantly in participants after three months of green tea consumption.
  • Triglyceride levels improved significantly in participants after three months.
  • Green tea did not cause any serious adverse side effects.

The study is consistent with epidemiological research showing an association between green tea consumption and better cognitive function. The amounts of catechins and theanine in the 2 grams of green tea powder are equivalent to about 2 to 4 cups of green tea, suggesting that even in moderate amounts, green tea may benefit cognitive health.

Source: Nutrients

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