Drinking too much tea is not good for the body

Drinking tea in moderation is good for health, but drinking too much tea can also have some adverse effects on the body, such as leading to iron deficiency anemia, which can easily damage the heart of the elderly. Why does tea addiction cause iron deficiency anemia? This is related to the high amount of tannic acid contained in tea.

Iron participates in hematopoietic activities in the human body, and in those who drink too much tea, a large amount of tannic acid contained in tea will form insoluble iron tannin with iron ions and be excreted from the body, resulting in increased iron loss and decreased absorption, which can lead to the occurrence of iron deficiency anemia. In addition to the severity of anemia in the elderly, it is also related to factors such as the speed of anemia and whether the cardiopulmonary function is normal. In general, older people often have varying degrees of emphysema and coronary artery disease, or other cardiopulmonary degenerative changes, and their tolerance to anemia has been significantly reduced.

If the heart is pre-existing with disease, mild anemia can cause the original metabolic state to be out of balance, causing corresponding symptoms or aggravating the original symptoms. This is because after the occurrence of anemia, the number of red blood cells is significantly reduced, the oxygen-carrying capacity of red blood cells is greatly reduced, and the heart is compensated by contractility, resulting in sinus tachycardia, a strong heart beat, which shortens the cycle time and increases cardiac output. If anemia develops further, it can cause myocardial hypertrophy, left ventricular enlargement, myocardial ischemia, and further deterioration of oxygen supply, which can promote angina pectoris or arrhythmia at any time.

To prevent iron deficiency anemia, it is important to limit the amount of tea you drink. The monthly tea consumption should not exceed 200 grams, and the tea should not be too strong and too strong, and avoid drinking strong tea half an hour before meals to reduce the chance of contact between tannic acid in tea and iron ions in food. You should also pay attention to eating more iron-rich foods, such as lean meat, animal liver, eggs, green leafy vegetables, etc.

At present, the concept of healthy diet has been paid more and more attention, and tea drinks with tea as raw materials have become more and more popular beverage types by everyone. Tea is rich in natural tea polyphenols, caffeine and other active ingredients of tea, which has both nutritional and health care effects. So, milk tea drinks, fruit juice tea drinks and other drinking tea drinks, do they also have these effects, and what are the precautions for drinkingThe various tea drinks on the market are mostly based on tea and add other ingredients.

For example, fruit juice tea drinks refer to products prepared by adding raw fruit juice (or concentrated fruit juice), sugar solution, acidulant and other products to tea water; Milk-flavored tea drinks refer to substances such as fresh milk or dairy products added to tea. If other substances are added to the tea, it is necessary to add preservatives and food additives to the drink. At present, the main ingredient of preservatives is sorbic acid, which is by far the least toxic of commonly used preservatives, but it should also be treated rationally, after all, it is also a chemical agent.

In addition, for tea drinks with fresh fruit juice, whether the added ingredients clash with the tea ingredients and whether there will be chemical reactions, this problem cannot be observed at present, and it is worth observing. "If conditions permit, it is recommended that everyone spend some time and energy to make tea and drink, which is the most healthy way to drink tea. Fang Shi said.

Tea drinks with other ingredients have a fresh and sweet taste, which is loved by many young people, but don't forget that its ingredient is tea, which retains its nutrients while there are certain taboos in drinking. Fang Shi said that tea drinks with tea as the main ingredient still retain the original tea ingredients in terms of composition. Therefore, the taboo of drinking tea also exists in the consumption of various tea beverages.

Don't drink before going to bed The caffeine and aromatic substances of tea are a kind of stimulant, drinking too much tea will excite the nerves and brain, increase the heartbeat and blood flow, and you can't fall asleep for a long time. How much to drink can cause insomnia? Fang Shi said that there is no law for this, and it is related to the amount of drinking, the concentration of tea, and the tolerance of each person, and the tea content is different depending on the type or brand of tea drink.

Those with high uric acid should limit drinking If uric acid is too high such as gout, drinking tea should be limited, and the tannic acid contained in tea is competitively excreted from uric acid, thus affecting uric acid excretion, so gout is especially not suitable for drinking strong tea. The tannic acid in tea can have a chemical reaction with many drugs, which will greatly reduce the efficacy or completely ineffective. Many traditional Chinese medicines, such as ginseng, coptis, cork, yuanhu, etc., should not be taken with tea, so as not to reduce the efficacy of the medicine.

In the case of confusion about what medicine does not react with the ingredients of tea, it is best to take all medicines and Chinese medicines without tea drinks.

It's not good, you should drink tea in moderation, don't drink too much, drinking too much tea will affect sleep and other problems. There are also different teas that have different effects on the human body.

It's not good to drink tea.

The disadvantages of drinking too much tea:

1. Cause stomach discomfort.

Regular consumption of strong tea in large quantities is easy to cause some discomfort in the body, and it is easy to dilute the gastric juice, resulting in a series of gastrointestinal diseases such as indigestion and bloating after the food enters the stomach.

2. Prone to constipation.

Long-term drinking of tea will allow the tannic acid in the tea to combine with the iron in the body, and it will also combine with the protein in the food to produce a piece of tannin protein that is not easy to digest, which will cause the peristalsis of the stomach and intestines to deteriorate, and will also make the body constipated.

3. Affect the body's absorption of iron.

Because tea contains tannic acid, and this substance will combine with iron after entering the body, it will affect the body's absorption of iron, and most people who drink tea for a long time will develop iron deficiency anemia.

4. It can easily lead to increased blood pressure and cardiovascular and cerebrovascular diseases.

Since tea contains caffeine, drinking a large amount of tea for a long time will cause too much caffeine to accumulate in the body, and caffeine will make the body's heart beat faster and make blood pressure rise. In addition, caffeine will increase the burden on the heart after entering the blood vessels through the blood, which in turn will cause a series of cardiovascular and cerebrovascular diseases.