Drinking black tea is an excellent option if you are looking for an alternative of coffee or energy drinks. Black tea is not only a non-sweetened or less-calorie drink but also provides several health benefits. Besides water, black tea is one of our most consumed drinks obtained from a plant Camellia sinensis and now available in the markets of all over the world in both unblended form such as Assam tea, and Darjeeling tea or blended with various other plants products to obtain different flavors such as Earl Grey, Bigelow, and Chai.
Studies have shown that drinking black tea on a regular basis helps to reduce the chances of onset of cardiovascular disorders. Interestingly, Pan et al. also reported that black tea polyphenols are more effective than polyphenols present in green tea.[17]
Studies also show that long-term drinking black tea results in the improvement of blood pressure either from lower or higher sides. Interestingly, drinking black tea also prevents the risk of cancer onset. As Way et al. reported that black tea polyphenol theaflavins perform chemoprotective action against hormone-dependent breast tumors.
In another study, Beltz et al. have reviewed the action of black tea polyphenols against the cancer onset and found that black tea polyphenols inhibited the survival of cancerous cells by regulating their growth and metastasis at both nucleic acid and protein levels. They mentioned that drinking black tea on a regular basis inhibited the risk of cancer onset as the phytochemicals present in black tea are known to inhibit the key events of cancer stimulation.
Beside anticancer property, consumption of black tea is also good for diabetic patients, as it is a non-sweetened drink that not only decreases the blood glucose but also reported to improve the status of insulin. Tanga et al. reported that black tea extract reduced the blood glucose level and improved the body ability to metabolize the sugar.
The antimicrobial potential of black tea constituents is also proved by another study, showed significant reduction in the growth of a range of harmful bacteria.
Excess generation of free radicals has the ability either directly or indirectly to damage our biomolecules including the damage of nucleic acids or proteins, which has now considered being one of the key sources responsible for the induction of a number of chronic disorders.