Wellington: Tea, in all its true forms, offers wide range of benefits for your health, recent studies have found.All true tea (white, green, oolong and black, as opposed to herbal varieties) comes from one plant: Camellia sinensis.The differences are in how they are processed, with white and green being the least processed, oolong in the middle and black the most processed.The processing changes the nutritional profile and some of the health effects. But no matter the process, all tealeaves are dense with flavonoids, health-promoting chemicals found in fruits, vegetables, whole grains and most plants, said researchers.“About one-third of the weight of a tea leaf is flavonoids, which is high, especially when you consider there are virtually no calories,” the Stuff.co.nz quoted Jeffrey Blumberg, professor of nutrition science and policy at Tufts University and chairman of the tea symposium, as saying.“A serving of tea is like adding a serving of fruits or vegetables to your diet,” he added.Tea helps your heart by keeping blood vessels unclogged and flexible. Blood pressure and stroke risk were reduced in epidemiological and clinical studies (even with sugar added).In a double-blind, randomised study in which hypertensive men drank one cup of black tea daily, both systolic and diastolic blood pressure were reduced.The blood-pressure-lowering effect was maintained even after a large intake of fatty, sugary food, which usually constricts blood vessels, showing that “cardiovascular protection can be achieved even without much sacrifice and with normal intakes,” said Claudio Ferri, a professor at Italy’s University of L’Aquila School of Internal Medicine and co-author of the study.
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