Tea drinks

Tea flavonoids, or tea extracts, have been linked to benefits in reducing the risk of certain cancers and cardiovascular diseases in experimental animals. However, epidemiological studies have produced inconsistent evidence in the relationship between tea drinking and cancer (Blot et a/., 1997 Goldbohm etal, 1996 Hertog eta/., 1997 Yang eta/., 1996). Therefore, further research is needed before definitive conclusions on the impact of tea consumption upon the cancer risk in humans can be reached. The metabolites of catechins and flavonols after consumption of tea infusions have scarcely been investigated, and thus more research is needed as to the role of those compounds in the reported health benefits of tea consumption. 

ONisi M (1993) The feasibility of a tea drinking program for dental pubhc health in primary schools , J Dent Hlth, 35, 402-5. 

SUEMATSU S, HISANOBU Y, SAIGO H, MATSUDA R, KARA K and KOMATSU Y (1992) Studies OU preservation of constituents in canned drinks. 1. Effects of pH on stability of constituents in canned tea drinks , Nippon Shokuhin Kogyo Gakkaishi, 39, 178-82. 

A few years later in 1983, Whittemore and colleagues11 analyzed data on 50,000 former male students who had attended Harvard University between 1916 and 1950. In a 16 to 50 year follow-up, they compared coffee and tea drinking practices of 126 men in the college cohort, who had subsequently died of pancreatic cancer, with those of 504 surviving class-... 

S.C.C. Lung, P.K. Hsiao, K.M. Chiang, Fluoride concentrations in three types of commercially packed tea drinks in Taiwan, J. Expo. Anal. Environ. Epidemiol. 13 (2003) 66-73. 

Effect of coffee and tea drinking on postprandial hypotension in older men and women. Clin Exp Pharmacol CA204 Physiol 1996 23(6-7) 559-563. 

Kikuchi. Amelioratory effect of barley tea drinking on blood fluidity. J Nutr Sci Vitaminol (Tokyo) 2002 48(2) 165-168. 

Identification of black tea as the primary source of flavonols (42.7%), procyanidins (49.5%), and catechins (63.6%) is again consistent with published literature for tea-drinking nations.For example, a study of 1900 Welsh men also observed that tea was the main dietary source of flavonols.Interestingly, 5.4 + 3.0 cups of tea were consumed by these subjects per day between 1979 and 1983 whereas the Scottish participants reported consuming only 2.8 + 2.4 cups of tea per day. This may reflect the current downward trend in tea consumption in the United Kingdom especially by adults under 50 years and also suggests that flavonols are obtained from other food sources in the Scottish diet. Hertog, for... 

Tea drinking resulted in an increase in fecal manganese excretion approximately equal to that added to the diets in the form of tea. Hence, no significant improvement in manganese retention occurred as the result of tea drinking. This suggests that either the polyphenols or other constituents of tea rendered the manganese in tea essentially unusable to the human (Table V). 

In discussions about authentic dacha life informants repeatedly asked if I had ever seen or used a real samovar. One of the historical museums in Tver has an extensive collection of antique samovars, and for an extra charge visitors can participate in a tea ceremony in which a museum guide details the history of the Russian samovar and tea drinking. The presentation reaches its climax with the pouring of tea made in an authentic samovar. Acquaintances who were concerned that my research would suffer if I had never used an authentic samovar were relieved when they learned that I had visited the museum and participated in the tea ceremony. 

They examined the long-term effects of tea drinking on the development of hypertension and found that the more tea consumed, the lower the risk. The doctors recruited more than 1,500 men and women ages twenty years or older who had no history of elevated blood pressure levels. They then tracked how much tea the subjects drank and how many of them developed hypertension. People who drank 120 to 599 ml of tea daily showed a 46 percent... 

Another benefit of black tea drinking has been reported in the United Kingdom in a survey of over 1000 older women, there were significant (ca. 5 /o) higher BMD measurements registered for the lumbar spine, greater trochanter, and Ward s triangle.f ... 

Tea drinks or iced teas are refreshing drinks containing soluble tea solids. Depending on tea extract quality, one can obtain turbid or clear products with a specific astringent tea flavour and red brownish colour. Flavours and colours alone are used for obtaining drinks with an authentic tea flavour and no caffeine to serve the children s market. In this area, fruit teas with bright red hibiscus extracts are also common. 

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