Nutritional value of oolong tea Oolong tea contains more than 450 kinds of organic chemical components and more than 40 kinds of inorganic mineral elements. Organic chemical components and inorganic mineral elements in tea contain many nutrients and medicinal components. Organic chemical components mainly include: tea polyphenols, plant alkaloids, protein, amino acids, vitamins, pectin, organic acids, lipopolysaccharides, sugars, enzymes and pigments.
Efficacy and function of oolong tea 1, prevention of tooth decay: A cup of tea after a meal can not only produce saliva and relieve symptoms, but also has the effect of preventing tooth decay. The cause of tooth decay is that bacteria invade the tooth tissue and produce enzymes in the tissue that cause tooth decay. This enzyme reacts with the sugar contained in food to produce substances that decay teeth. This substance and bacteria that can decay teeth attach to the teeth to form dental scale, and after accumulation, tooth decay will occur.
Polyphenols contained in oolong tea can inhibit the production of tartar enzymes, so drinking a cup of oolong tea after eating can prevent the occurrence of tartar and tooth decay. Scientists have proved through long-term experiments that letting white rats eat feed containing polyphenols will reduce the probability of tooth decay. If there is no time to brush their teeth after meals, it is also a good choice to drink a cup of oolong tea to prevent tooth decay.
2, anti-tumor, anti-aging: oolong tea can promote the decomposition of blood fat, but also reduce the cholesterol content. An experimental report on the efficacy of oolong tea in foreign countries 1994 pointed out that oolong tea has quite good curative effect on patients with hyperlipidemia and hypertension. Especially, among the 68 patients with Gao Xue's hypertension who participated in the trial, after one stage of testing, 75% of them showed a downward trend in blood pressure. In addition, scientific research also found that oolong tea can completely block the endogenous formation of nitroso gum in vivo, and play a role in preventing esophageal cancer. At the same time, oolong tea has the same anti-aging effect as vitamin E. Under the condition of taking enough vitamin C orally every day, drinking oolong tea can keep the content of vitamin C in blood at a high level, reduce the excretion of vitamin C in urine, and vitamin C has anti-aging effect. Therefore, drinking oolong tea can enhance the anti-aging ability of human body in many ways.
In addition, oolong tea also has the functions of anti-tumor, improving the activation of lymphocytes and NK cells, strengthening immune function and preventing aging. Experts have found that oolong tea polyphenols also have the effect of absorbing foreign bodies in the body and expelling them together.
3, double detoxification: scientific evidence shows that black oolong tea can inhibit the absorption of neutral fat by 20%, and the effect is amazing. However, the fat content in the excrement of people who have drunk black oolong tea is twice as high as that of those who have not. Therefore, black oolong tea can not only inhibit the absorption of fat, but also help the oil to be discharged from the body twice, which has a magical double detoxification effect. Black oolong tea combines the preparation methods of green tea and black tea, and its quality is between that of green tea and black tea. It has not only the strong flavor of black tea, but also the fragrance of green tea and the reputation of "green leaves with red edges".
Three taboos for drinking oolong tea 1, don't drink on an empty stomach: otherwise you will feel hungry and even dizzy, which is commonly known as "tea drunk".
2, can not drink before going to bed: otherwise it will make it difficult for people to fall asleep.
3, Leng Cha can't drink: oolong tea is cold after cold, which is not good for the stomach.
These three taboos are particularly important for girls who are drinking oolong tea for the first time, because oolong tea contains more tea polyphenols and caffeine than other teas, and improper drinking is easy to harm their health.
Four health-care functions of oolong 1. Health-care functions:
1. Eliminate reactive oxygen species harmful to beauty and health;
2. Drinking 1 liter oolong tea every day can improve skin allergy;
3. Drinking oolong tea can slim down;
4. Anti-tumor and anti-aging effects.
Second, improve listening:
Oolong tea has the functions of caring skin, expelling toxin, facilitating defecation, resisting chemical activity and eliminating active oxygen molecules in cells. Middle-aged and elderly people often drink oolong tea to help keep their hearing. The protective effect on male hearing is obviously greater than that on female hearing. Although drinking oolong tea is good for hearing, you should not drink too much. It is advisable to drink 1~2 cups of tea a day.
Third, the weight loss effect:
Oolong tea has the effect of dissolving fat to lose weight. Because tannic acid, the main component in tea, is closely related to fat metabolism. Oolong tea can reduce the cholesterol content in the blood.
People who drink oolong tea regularly have lower body mass index and fat content than those who drink less. Moreover, women lose weight more effectively than men. Compared with black tea and green tea, oolong tea can not only stimulate the activity of lipolytic enzymes in pancreas and reduce the absorption of sugar and fatty foods, but also accelerate the increase of body heat production, promote fat burning and reduce the accumulation of abdominal fat.
Fourth, the value of medication:
Oolong tea, as a special famous tea in China, not only has health-care functions such as refreshing mind, relieving fatigue, promoting fluid production and diuresis, relieving fever and heatstroke, sterilizing and diminishing inflammation, dispelling cold and relieving hangover, detoxicating and preventing diseases, promoting digestion and removing boredom, losing weight and bodybuilding, but also has special functions such as preventing cancer, reducing blood fat and resisting aging.