What are the disadvantages of drinking tea?
Apr 19, 2024
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
In general, the potential adverse effects of drinking tea include insomnia, abdominal pain, increased urination, tooth discoloration, and impaired iron absorption. Therefore, it is recommended to consume tea in moderation. If any discomfort occurs after drinking tea, prompt medical attention is advised. To avoid these adverse effects, moderate tea consumption is recommended, and particularly for sensitive individuals, appropriate types of tea and timing of consumption should be chosen according to personal circumstances.
Generally, the adverse effects of drinking tea include insomnia, abdominal pain, increased urination, tooth discoloration, and impaired iron absorption. Therefore, it is recommended to consume tea in moderation. If discomfort occurs after drinking tea, prompt medical attention is advised. The specific analysis is as follows:
1. Insomnia
Tea contains caffeine, a substance that has a stimulating effect and can activate the central nervous system, leading to increased heart rate and overexcitement. Drinking strong tea in the evening may particularly affect sleep quality, causing insomnia or difficulty falling asleep.
2. Abdominal Pain
Tea contains small amounts of tannins and caffeine. Excessive tea consumption may irritate the gastrointestinal tract, especially when consumed on an empty stomach, which can increase gastric acid secretion and lead to stomach discomfort and abdominal pain.
3. Increased Urination
The caffeine in tea has a diuretic effect, increasing the kidney's urine output and thus leading to more frequent urination. Excessive tea consumption may result in dehydration or disrupt the body's electrolyte balance.
4. Tooth Discoloration
Tannins and other pigments in tea may deposit on the tooth surface. Long-term consumption of strong tea may cause yellowish stains or discoloration, affecting dental appearance.
5. Impaired Iron Absorption
Components such as tannins and oxalic acid in tea can bind with iron from food, forming insoluble complexes that hinder iron absorption. Long-term, excessive tea consumption may lead to iron deficiency, particularly in individuals with higher iron requirements, such as pregnant women, children, and the elderly.
To avoid these adverse effects, it is advisable to drink tea in moderation. Sensitive individuals should choose appropriate tea types and timing according to their personal conditions, avoiding large amounts of tea before bedtime, on an empty stomach, or immediately after meals.
