Drinking tea in moderation is good for health, but drinking tea with high concentration for a long time is harmful to the body.
Drinking tea can not only refresh you, but it is also rich in many health-promoting substances. The tea polyphenols in tea have antioxidant effects, can soften blood vessels, and are very beneficial to cardiovascular and cerebrovascular diseases.
Tea contains a lot of tannic acid. If people often drink strong tea, the tannic acid will combine with iron to form an insoluble substance that hinders the absorption of iron. Long-term drinking of strong tea will cause iron deficiency anemia. .
Drinking strong tea after meals is more harmful. Because iron, vitamins and other substances necessary for the human body are usually taken in the daily diet. After a full meal, the food is still in the stomach. If you drink strong tea at this time, tannic acid is more likely to combine with iron and hinder the absorption of iron. For people who already suffer from iron deficiency anemia, they should drink less strong tea.
Drinking too much strong tea can cause the gastric mucosa to be repeatedly irritated by theophylline and other substances, which can easily cause gastritis and ulcers, and may also cause tumors.
/iknow-pic.cdn.bcebos.com/a08b87d6277f9e2f007e2a631130e924b899f315"target="_blank"title=""class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/a08b87d6277f9e2f007 e2a631130e924b899f315?x- bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="/n1/2016/1018/c21471-28787357.html"target="_blank"title="Only supported It will take effect when you select a link">People's Daily Online - Drinking "Healthy Tea" Wrong Way or Not. Drinking tea varies from person to person and from time to time
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/www.jkb.com.cn/ healthyLiving/nutrition/2011/0803/337811.html"target="_blank"title="Only supports selecting a link to take effect">Health News Network-Be careful of anemia if you drink strong tea for a long time