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What are the advantages and disadvantages of drinking black tea?

It can help gastrointestinal digestion, remove greasiness, whet appetite, support health, promote appetite, diuresis and eliminate edema. Black tea can strengthen heart function.

Black tea is mild in nature and has a mellow aroma. First of all, it helps to strengthen bones. Researchers from the University of Cambridge Medical School conducted a survey on diet and bone density among 1,256 women aged 65 to 76 who lived nearby. The results show that tea is rich in flavonoids, which can reduce the risk of osteoporosis in women. Secondly, drinking black tea can prevent and treat influenza, myocardial infarction, stroke and skin diseases. Studies have found that regular gargling with black tea or drinking it directly can prevent influenza; black tea is rich in trace element potassium. After brewing, 70% of the potassium can be dissolved in the tea, which can enhance heart and blood circulation and reduce calcium absorption in the body. consumption. People who drink 5 cups of black tea a day have a 69% lower risk of stroke than people who don’t drink black tea.

It is best to add milk to black tea. People who drink tea without milk have a relatively high proportion of oxalic acid in their bodies. Oxalic acid is generally excreted from the body in the urine, but for some people some oxalic acid still accumulates in the body and eventually forms kidney stones. The calcium in milk can combine with oxalic acid, allowing it to be eliminated smoothly.

It is recommended to drink black tea at night. Because green tea is a non-fermented tea, it has a high content of tea polyphenols and maintains its original properties, so it is relatively irritating; black tea is a fully fermented tea, and although its content of tea polyphenols is low, it has undergone a "maturation" process and is less irritating. , relatively gentle and mild, suitable for drinking at night. Especially for people with weak spleen and stomach, adding some milk when drinking black tea can have a certain stomach-warming effect.

However, for people who are easily agitated or sensitive, have poor sleep conditions and are weak, it is better to drink less or no tea at night. In addition, when drinking tea at night, put less tea leaves and don't make the tea too strong. The best time to drink tea is after dinner, because drinking tea on an empty stomach can be harmful to the body, especially for people who do not drink tea often. It will inhibit the secretion of gastric juice, hinder digestion, and in severe cases can cause "tea drunkenness" such as heart palpitations and headaches. Phenomenon.

It is not advisable to drink black tea cold as it will affect the stomach-warming effect. Leaving it for too long will reduce the nutritional content.