Even though previous researches have authenticated about the beneficial aspects of tea, scientists have now pointed out// the dangerous side effects it poses.
Scientists have earlier shown that antioxidant properties found in green tea could help prevent coronary artery disease. They had also said that drinking tea could help fight against autoimmune disease - when the immune system attacks itself by mistake.
Some earlier studies have also shown that substances in tea and other foods could help fight cancer.
But in the new study, Rutgers University researchers announced that drinking tea could cause chromosome damage and fetal leukemia, reported the online edition of The Washington Times.
Diet derived compounds are generally regarded as safe, based on their long history of use in the diet or as traditional medicines.
But the phytochemicals, which are compounds in plant-derived foods and found in tea extracts, could have biological activity in the body. It could cause dangerous side effects, said Joshua Lambert, the lead author of the study and a chemist at the university.
His findings reveal that a well-meaning self-remedying public is in danger of overdosing on the compounds, particularly through concentrates and supplements that tout their healing or weight-loss powers, or their lack of caffeine.
One commercial brand of green tea extract, for example, claims to contain more than 700 milligrams of polyphenols, or plant-based antioxidants. A typical cup of green tea provides about 80 milligrams.
Lambert, whose research was funded by the National Institutes of Health, has found an increasing number of human cases of hepatotoxicity, or chemical-induced liver damage, reported in people using tea-based dietary supplements. Research on rats and dogs also found a potential for kidney and intestinal damage.
Though Lambert says further research is needed, some ofPage: 1 2 Related medicine news :1
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