Greentealovers Newsletter - March 2012

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In The March 2012 Issue:
Latest Weight/Diet Research
Green Tea & Age
Green Tea & Weigt Loss
Green Tea & Estrogen
Green Tea & Cavities
Recipe: Green Smoothie
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Weight & Diet Research

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Green Tea Drinkers Show Less Disability with Age: Study
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 Sun Feb 5, 2012
Elderly adults who regularly drink green tea may stay more agile and independent than their peers over time, according to a Japanese study that covered thousands of people.

Green tea contains antioxidant chemicals that may help ward off the cell damage that can lead to disease. Researchers have been studying green tea's effect on everything from cholesterol to the risk of certain cancers, with mixed results so far.

For the new study, published in the American Journal of Clinical Nutrition, researchers decided to examine the question of whether green tea drinkers have a lower risk of frailty and disability as they grow older.

Yasutake Tomata of the Tohoku University Graduate School of Medicine and his colleagues followed nearly 14,000 adults aged 65 or older for three years.

They found those who drank the most green tea were the least likely to develop "functional disability," or problems with daily activities or basic needs, such as dressing or bathing.

Specifically, almost 13 percent of adults who drank less than a cup of green tea per day became functionally disabled, compared with just over 7 percent of people who drank at least five cups a day.

"Green tea consumption is significantly associated with a lower risk of incident functional disability, even after adjustment for possible confounding factors," Tomata and his colleagues wrote.

The study did not prove that green tea alone kept people spry as they grew older.

Green-tea lovers generally had healthier diets, including more fish, vegetables and fruit, as well as more education, lower smoking rates, fewer heart attacks and strokes, and greater mental sharpness.

They also tended to be more socially active and have more friends and family to rely on.

But even with those factors accounted for, green tea itself was tied to a lower disability risk, the researchers said.

People who drank at least five cups a day were one-third less likely to develop disabilities than those who had less than a cup per day. Those people who averaged three or four cups a day had a 25 percent lower risk.

Although it's not clear how green tea might offer a buffer against disability, Tomata's team did note that one recent study found green tea extracts seem to boost leg muscle strength in older women.

While green tea and its extracts are considered safe in small amounts, they do contain caffeine and small amounts of vitamin K, which means it could interfere with drugs that prevent blood clotting. -- Editing by Elaine Lies and Paul Tait

Ref: Reporting from New York by Reuters Health;
Research Links Green Tea to Weight Loss
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February 10, 2012
Multiple studies have been published showing that regular consumption of green tea - or of supplements containing the catechins extracted from green tea - may influence energy metabolism, body weight and body fat content.

Research into how the catechins, particularly EGCG, found in green tea benefit weight loss and fat distribution has been conducted in vitro (test tubes), using mice, and finally in clinical trials with humans.

All three research techniques have produced results indicating that high doses of catechins can be effective for:

    * Promoting weight loss

    * Reducing waist circumference

    * Improving energy metabolism

    * Decreasing intra-abdominal fat

    * Supporting maintenance of lost weight.

Following are just a few of the clinical trials that demonstrate the positive weight loss benefits of green tea's catechins:

    * In 2009, researchers in the Netherlands did a meta-analysis of 11 studies evaluating how the catechins found in green tea affect weight loss and weight management. According to their findings, "Catechins significantly decreased body weight and significantly maintained body weight after a period of weight loss."(1)

    * A randomized placebo-controlled trial in China studied the effects of catechins on weight and body composition. A total of 182 moderately overweight men and women were divided into four groups and given two beverage servings a day for 90 days. The beverage given to the control group contained almost no catechins while the other groups received catechin doses ranging from 458 mg/day to 886 mg twice a day. In their conclusions, the researchers said, "This investigation shows that regular consumption of a very-high catechin green tea [500-900 mg] over 90 days leads to significant reductions in measures such as body weight, waist circumference and intra-abdominal fat..."(2)

    * Scientists know that in vitro, green tea extract inhibits gastric and pancreatic lipases (enzymes that break down fat) and stimulates thermogenesis (the fat-burning process). Based on these principles, an open-label trial was conducted to study the effects of green tea extract with EGCG on moderately obese patients. After three months, the subjects' body weight decreased by 4.6% and waist circumference decreased by 4.5%.(3)

    * Based on data from previous human studies indicating that green tea extracts may support body weight reduction by increasing thermogenesis and fat oxidation, a German study looked specifically at the effects of EGCG on weight loss. They found that EGCG "has the potential to increase fat oxidation in men and may thereby contribute to the anti-obesity effects of green tea."(4) -- Karen Lee Richards
In Summary

Green tea has been studied extensively in humans, animals and laboratory tests. In addition to its many other known health benefits, green tea contains powerful catechins that have been shown to promote weight loss and reduce body fat, particularly in the abdominal area.

1.  Hursel R, et al. "The effects of green tea on weight loss and weight maintenance: a meta-analysis" Int J Obes (Lond). 2009 Sep;33(9):956-61.

2.  Wang H, et al. (Full Text) "Effects of catechin enriched green tea on body composition" Obesity (Silver Spring). 2010 Apr;18(4):773-9.

3.  Chantre P, Lairon D. "Recent findings of green tea extract AR25 (Exolise) and its activity for the treatment of obesity" Phytomedicine. 2002 Jan;9(1):3-8.

4.  Boschmann M, Thielecke F. (Full Text) "The effects of epigallocatechin-3-gallate on thermogenesis and fat oxidation in obese men: a pilot study" J Am Coll Nutr. 2007 Aug;26(4):389S-395S.


Caffeine Linked to Estrogen Changes
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January 28, 2012
Moderate caffeine consumption is associated with higher levels of estrogen in Asian women, but lower levels in white women, according to a study of reproductive-age women conducted by the National Institutes of Health and other institutions.

Over 250 women, ages 18 to 44 years old, participated in the study between 2005 and 2007. On average, they consumed 90 milligrams of caffeine a day, equivalent to approximately one cup of caffeinated coffee.

Asian women who took in an average of 200 milligrams or more of caffeine a day - the equivalent of approximately two cups of coffee - had higher estrogen levels than women who consumed less caffeine.

In contrast, white women who consumed 200 milligrams or more of caffeine a day had slightly lower estrogen levels than women who consumed less.

Black women who consumed 200 milligrams or more of caffeine a day were found to have elevated estrogen levels; however, the result was not statistically significant.

Total caffeine intake was calculated from any of the following sources: coffee, black tea, green tea, and caffeinated soda.

Findings differed slightly when the source of caffeine was considered singly. Drinking 200 milligrams or more of caffeine from coffee was consistent with the findings for overall caffeine consumption-with Asians having higher estrogen levels, whites having lower estrogen levels, and the results for blacks not statistically significant. However, drinking more than one cup each day of caffeinated soda or green tea was linked to higher estrogen level in Asians, whites, and blacks.

The changes in estrogen levels among the participants did not seem to affect ovulation. Animal studies had suggested that caffeine could possibly interfere with ovulation.

"The results indicate that caffeine consumption among women of child-bearing age influences estrogen levels," said Enrique Schisterman, Ph.D., of the Division of Epidemiology, Statistics and Prevention Research at the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), the NIH institute where some of the research was conducted.

"Short term, these variations in estrogen levels among different groups do not appear to have any pronounced effects. We know that variations in estrogen level are associated with such disorders as endometriosis, osteoporosis, and endometrial, breast, and ovarian cancers. Because long-term caffeine consumption has the potential to influence estrogen levels over a long period of time, it makes sense to take caffeine consumption into account when designing studies to understand these disorders."

Most of the study participants reported to the study clinic one to three times a week for two menstrual cycles. Their visits were scheduled to correspond with specific stages of the menstrual cycle.

During each visit, the participants reported what they had eaten in the last 24 hours and answered questions about their exercise, sleep, smoking and other lifestyle factors.  Reproductive hormone levels were also measured.

Researchers added that receiving these details during multiple stages across two menstrual cycles produced more precise information concerning the link between caffeine and hormones than was possible in previous studies. The researchers also noted that the study volunteers were more racially diverse than those from earlier studies.

The study was published online in the American Journal of Clinical Nutrition. -- Traci Pedersen Associate News Editor

 American Journal of Clinical Nutrition

Doctors Health Press Supports Study Showing That Green Tea Could Help Prevent Cavities
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January 28, 2012 
The Doctors Health Press, a publisher of various natural health newsletters books and reports, including the popular online Doctors Health Press e-Bulletin, is lending its support to new research that has shown that the antioxidants found in green tea could benefit oral health, including protecting teeth against cavities.

As reported in the Doctors Health Press e-Bulletin on Thursday, January 26, 2012 (, researchers say that the tea is an excellent way to help ensure the good health of your teeth and mouth.

Israeli researchers investigated green tea's polyphenol antioxidants and their ability to benefit oral health. The research team found that green tea could have the ability to protect against bacterial-induced dental cavities.

According to Doctors Health Press e-Bulletin, the polyphenols in green tea also possess antiviral properties, which could help protect against the influenza virus that often enters through the mouth or nasal cavities. Additionally, green tea polyphenols can be used as a natural remedy to treat bad breath, or halitosis, as the medical community calls it. The sulfur compounds in green tea are thought to be responsible for its breath-freshening effect.

Smokers could also benefit from drinking green tea, reports Doctors Health Press e-Bulletin. Cigarette smoke, which is at its most concentrated when first breathed into the mouth, contains many harmful compounds such as nicotine that can lead to infections and more serious conditions like oral cancer. Green tea polyphenols could help to offset the negative health effects of cigarette smoke.

The Doctors Health Press e-Bulletin article also reports that green tea has an ability to defend healthy cells from being transformed into malignant cells. The research team in the original study suggests that green tea could help induce death in oral cancer cells. They conclude by saying that green tea could be used as part of the prevention and treatment of oral health complaints. -- Victor Marchione

(SOURCE: Narotzki, B., et al., "Green tea: A promising natural product in oral health," Arch. Oral. Biol., Jan. 5, 2012.)

Ref: PRWEB -Archive Oral Biology  

This Month's Green Tea Recipe

Green Smoothie



    3 cups frozen white grapes
    2 packed cups baby spinach
    1 1/2 cups strong brewed green tea (see Tip), cooled
    1 medium ripe avocado
    2 teaspoons honey

Directions in making green tea truffle

Combine grapes, spinach, green tea, avocado and honey in a blender; blend until smooth. Serve immediately.

Tip: To brew strong green tea, use twice the amount of tea (or two tea bags), but do not over steep. Green tea should be steeped for no longer than 3 minutes; over steeping will give the tea a bitter taste.

This green smoothie is packed with grapes, spinach, green tea and avocado. A touch of honey adds sweetness. 

Try Our Unique Flavored Green Teas!

Try our green tea natural flavor blends for some really unique and refreshing ice tea taste in our Flavor Blends/Jasmine.

In addition to our traditional blends we introduced a few new flavors:

- Balinese Rainbow Jasmine Green
- Tres vert French Green
- Buckingham Palace Green

In addition three new flavor blends with significantly high antioxidant content:

- Ginger Green
- Citron Green
- Pommes Green
- Riverdance Green

will also appear in the Ultra High Antioxidant Section.

Our various tea and teaware products are subject to a variety of inspections and certifications depending on their origin including Fairtrade, Organic (US, Canada, Europe, Japan) Ethical Tea Partnership. HACCP, ISO 14001 Environmental Production and food safety authorities USFDA, CIFA & EFSA.

Greentealovers also actively uses its sales revenue to decrease its own carbon footprint through a combination of renewable [solar] fuels, Energy Star Compliant heating equipment, enrgy efficient lighting and added insulation. In the last year alone we reduced emissions by over over 15000 pound of CO2.
Our teas are shipped domestically by USPS priority mail and International first class abroad. Tea ware items are insured against breakage when shipped domestic priority.

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