Benefits of black tea

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Black tea is a type of tea that is used by many people because of its many health benefits such as: Fight cancer, improve heart health, help mental alertness,... So how to drink black tea to get the most benefit?

1. What is black tea?

Black tea is made from the leaves of a shrub called Camellia sinensis. This tea contains caffeine, stimulants and antioxidants. You can drink black tea hot or cold. If you want to drink cold tea, you need to steep the tea in hot water before chilling.
To produce black tea, tea leaves are exposed to moist, oxygen-rich air (oxidation) to turn the tea leaves from green to dark brown - black. Tea makers can control oxidation. Black tea is a type of tea that undergoes complete oxidation, while green tea shares the same origin but is not oxidized.

2. Benefits of black tea

Many people drink black tea because they like the taste of tea. Others, they drink black tea because of its many benefits such as:
Keeps the mind awake and gives energy to the body; Rich in antioxidants, including polyphenols and catechins; Can prevent cancer; Promotes cardiovascular health; Improve metabolism; Promotes gastrointestinal health. Some evidence shows that drinking black tea regularly helps reduce the risk of diseases including: Diabetes, high cholesterol, kidney stones, Parkinson's disease, osteoporosis, tooth decay, ...

3. Side effects of black tea

If taken in moderation, black tea is quite safe for most people. However, there is no standard for the appropriate amount of black tea to drink.
If you drink large amount of black tea, 4-5 cups/day can cause some health problems. Those side effects are mainly related to caffeine. Some of the side effects of black tea when used in high doses can include:
Restlessness, anxiety and trouble sleeping; Headache ; Breathe faster; Urinating more; Irregular heartbeat; Nausea and vomiting; Tinnitus ; Run; High Blood Pressure; Anemia. Combining black tea with other caffeine or ephedra can be very dangerous. Some of the problems it can cause include: Restlessness, increased blood pressure, changes in heart rate, seizures, loss of consciousness.
Black tea or supplements derived from black tea may interfere with other medications and supplements you are taking. Certain medications can also cause caffeine to stay in the body longer than usual. Therefore, you need to talk to your doctor to find out if any of the medications you are taking have these side effects. In addition, the caffeine in black tea can also interfere with certain blood tests. Therefore, you should tell your doctor if you are drinking a lot of black tea or taking any kind of supplement.
Black tea has many health benefits. However, you should not abuse this drink, but use it in the right amount to avoid unwanted side effects.

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Reference source: webmd.com