How about drinking iced black tea?

Black tea itself is a kind of mild tea, which is mellow and delicious and has many benefits to human body. For example, black tea is rich in trace potassium and other elements, which can help people with "three highs" to lower their blood pressure, blood sugar and blood lipids, and also enhance the blood circulation of the heart. At the same time, flavonoids contained in black tea can prevent and treat cardiovascular and cerebrovascular diseases such as heart disease and stroke.

In addition, black tea is rich in tea polyphenols that absorb alkaloids and decompose heavy metals, which can help the liver decompose heavy metal substances or toxins inhaled by the human body. Meanwhile, black tea contains manganese. Drinking black tea regularly can reduce the loss of calcium in the body and strengthen bones. Suitable for middle-aged and elderly friends with high risk of osteoporosis.

Iced black tea, when the weather is hot, can not only relieve fever and summer heat, but also supplement some energy lost with sweat and corresponding vitamins, stimulate taste buds and increase appetite. However, black tea itself is a completely fermented tea. Although it can nourish the stomach, it is not suitable for cold drinks. If it is left too long, the nutrients in black tea will be lost. Adding iced black tea is more difficult to warm the stomach, and even easy to cause stomach discomfort and induce diarrhea.

In addition, there is too much sugar in the common iced black tea drinks on the market at present. Drinking too much at one time may cause dehydration symptoms, while drinking for a long time may easily lead to obesity. As for a series of additives such as preservatives, flavors and pigments contained in iced black tea drinks, they are even more harmful to the health.