Oolong tea, also known as green tea, is a kind of tea that people usually drink. The well-known products, such as Dahongpao, Tieguanyin, Phoenix Dan Cong and Taiwan Alpine Tea, all belong to Oolong tea. Oolong tea has both the fragrance of green tea and the sweetness of black tea. Drinking Oolong tea is beneficial to people, but improper drinking will also bring disadvantages.

The benefits of drinking oolong tea

The polyphenols contained in oolong tea have antioxidant effect, delaying aging and whitening skin; In addition, the vitamin C contained in oolong tea also has whitening effect on the skin. Therefore, drinking oolong tea can not only beautify and resist aging, but also supplement the vitamin C needed by the human body.

Oolong tea has the function of lowering blood fat and blood pressure. Drinking oolong tea can reduce blood viscosity, increase blood fluidity and improve blood microcirculation, which has a good effect on preventing myocardial infarction, inhibiting active sclerosis and preventing cardiovascular diseases such as hypertension.

The polyphenols contained in oolong tea can inhibit the production of tartar enzymes. Drinking oolong tea after eating can prevent the occurrence of tartar and tooth decay.

Oolong tea contains polyphenols such as catechins that can burn calories, which can promote metabolism and burn fat. Drinking Oolong tea regularly, combined with exercise and a balanced diet, can achieve the goal of losing weight.

The disadvantages of drinking oolong tea

Excessive consumption of oolong tea and its application regardless of time will do harm to the stomach. Because oolong tea belongs to semi-fermented tea, leaves have a greater stimulation on the stomach.

People who are often constipated cannot drink oolong tea. The polyphenols in oolong tea have a certain astringent effect on the gastrointestinal mucosa of human body. If you drink oolong tea regularly, it will lead to the aggravation of constipation symptoms.

Excessive drinking of oolong tea will lead to calcium deficiency in human body. Alkaloids contained in oolong tea can inhibit the absorption of calcium in duodenum, lead to calcium deficiency in human body and cause osteoporosis.

People with fever are not suitable for drinking oolong tea. Theophylline contained in oolong tea can increase the body temperature, so that the cooling effect of the drug is weakened or offset.

People with anemia can't drink oolong tea often. Tannic acid contained in oolong tea will cause iron in food to form a precipitate that is not absorbed by human body. Drinking oolong tea often will lead to the aggravation of anemia symptoms.