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Tea

NEWS:

Cognitive function and tea consumption in community dwelling older chinese in singapore. (Nutr Health Aging. 2010) “Conclusions: Tea consumption was associated with better cognitive performance in community-living Chinese older adults. The protective effect of tea consumption on cognitive function was not limited to particular type of tea.”

Green Tea Drinking in Elderly Linked to Lower Risk for Depression

Green Tea May Help Cut Risk for Lung Cancer

Is Bottled Tea Another Junk Drink? “Bottled tea is not only poor in levels of health-improving ingredients for which tea is famous, but it often contains high quantities of sugar and some other substances - substances the health-conscious consumer may be trying to avoid, Li pointed out. Li and team measured polyphenol levels in six brands of tea bought from supermarkets. Half of them contained "virtually no antioxidants" while the rest had small quantities of polyphenols which would most likely carry little health benefit, especially when the high sugar content was taken into consideration.”

New Evidence That Green Tea May Help Fight Glaucoma and Other Eye Diseases

Tea May Contain More Fluoride Than Once Thought, Research Shows “Fluoride is known to help prevent dental cavities, but long-term ingestion of excessive amounts could cause bone problems. The average person ingests a very safe amount, 2 to 3 milligrams, daily through fluoridated drinking water, toothpaste and food. It would take ingesting about 20 milligrams a day over 10 or more years before posing a significant risk to bone health. Whitford discovered that the fluoride concentration in black tea had long been underestimated when he began analyzing data from four patients with advanced skeletal fluorosis, a disease caused by excessive fluoride consumption and characterized by joint and bone pain and damage. While it is extremely rare in the United States, the common link between these four patients was their tea consumption -- each person drank 1 to 2 gallons of tea daily for the past 10 to 30 years. "When we tested the patients' tea brands using a traditional method, we found the fluoride concentrations to be very low, so we wondered if that method was detecting all of the fluoride," Whitford said, noting that the tea plant, Camellia sinensis, creates a quandary when measuring fluoride. Unique among other plants, it accumulates huge concentrations of fluoride and aluminum in its leaves -- each mineral ranges from 600 to more than 1,000 milligrams per kilogram of leaves. When the leaves are brewed for tea, some of the minerals leach into the beverage.”

Tea May Slim Men’s Waistlines

ARTICLES:

Do This for 5 Minutes, Get 5 Years Younger “Researchers think it's the antioxidants in tea that help keep telomeres long. It's a beneficial chain reaction of sorts. Antioxidants fight diseases like cancer, diabetes, and heart disease -- conditions that tend to damage cells. And when damaged, cells divide in order to repair injuries and the telomeres -- a finite resource -- shrink. Interestingly, the tea study showed telomere benefits only in men, possibly because cell-protecting hormones unique to women left less room for improvement.”

Should You Join This Tea Party?

JOURNAL ARTICLES:

Green tea prevents non-melanoma skin cancer by enhancing DNA repair. (Arch Biochem Biophys. 2010)

Green tea supplementation affects body weight, lipids, and lipid peroxidation in obese subjects with metabolic syndrome. (J Am Coll Nutr. 2010) “CONCLUSIONS: Green tea beverage consumption (4 cups/d) or extract supplementation (2 capsules/d) for 8 weeks significantly decreased body weight and BMI. Green tea beverage further lowered lipid peroxidation versus age- and gender-matched controls, suggesting the role of green tea flavonoids in improving features of metabolic syndrome in obese patients.”

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