It seems that you don't know much about drinking tea. I'll help you again!

1: Some people say that tea will hinder protein's absorption, so you can't drink tea when eating protein food. However, people always eat some protein food and drink tea every day. How to solve this contradiction?

A: Tannic acid contained in tea can combine with protein to produce astringent protein tannic acid, which slows down gastrointestinal peristalsis and may be unfavorable to the absorption of protein. However, the main component of tea is tea polyphenols, and the content of tannic acid in tea is very small, generally only about 5%. Compared with the daily intake of protein, the effect of tannic acid in tea can be ignored. So, you can eat protein food while drinking tea.

2. Tea will hinder the absorption of iron, so will drinking tea lead to iron deficiency anemia?

A: It is true that drinking tea can lead to iron deficiency anemia. The main basis is as follows: 1. Polyphenols in tea will combine with iron in human body to form iron compounds that are not easily absorbed by human body; Second, alkaloids and acidic substances in tea can combine with iron, stimulate the stomach and hinder the absorption of iron; Thirdly, tea contains phenyltannic acid, which can synthesize iron tannic acid with iron in food. This kind of substance will stimulate the gastrointestinal mucosa and is not conducive to digestion.

So can drinking tea lead to iron deficiency anemia? Experiments in recent years have proved that if you eat while drinking tea, it will really reduce the absorption rate of iron. However, if you eat foods rich in vitamin C between meals or eat some fruit and drink some juice after meals, this side effect will be obviously weakened. If you drink tea after a meal for a period of time, the effect will be little orno. This experiment was done by 1993 in the United States, and the conclusion is that drinking tea is not directly related to iron deficiency anemia.

Some people say that drinking strong tea is harmful to health. So, how much strong tea is tea?

A: We say that the concept of strong tea itself is a rather vague concept. In fact, what concentration of tea is called strong tea is still inconclusive. Generally speaking, drinking tea normally has no adverse effects on health. Only drinking a lot of high-concentration tea regularly is harmful to health, and people with neurasthenia symptoms are not suitable for drinking strong tea. Because tea contains caffeine, it will make the heart beat faster, raise blood pressure and aggravate insomnia symptoms. Different people should decide what kind of tea to drink and what concentration of tea to drink according to their physical condition.

4: Can people with gastric acid (heartburn) drink tea?

A: People with hyperacidity should try not to drink too strong tea, just light tea. Because the alkaloids in tea will reduce the activity of phosphodiesterase, which can inhibit gastric parietal cells from secreting gastric acid, and make gastric parietal cells secrete more gastric acid, which is not good for health.

Tip: drink tea scientifically

● Drink tea half an hour after meals, and don't drink tea at the same time when eating.

● If you eat tea, you'd better eat some fruit or vitamin C tablets after meals. This can increase the body's absorption of iron.

● Green tea itself is rich in vitamin C, which has little effect on the absorption of iron, so you can drink more.