Common side effects of black tea can lead to excessive gastric acid secretion and increased internal heat. Black tea contains caffeine, which can stimulate the brain nerves and promote the secretion of gastric juice, causing insomnia and excessive gastric acid. Moreover, the nature of black tea is warm, so people with damp-heat in the body or excessive internal heat who drink it may experience worsening internal heat. People with a tendency to get angry easily, those with gastritis or gastric ulcer, and those with poor sleep and weak physical conditions are not suitable for drinking black tea.
1. Black tea is a commonly used type of tea in daily life. It is obtained through fermentation and has the effects of warming the stomach, strengthening the spleen, and aiding digestion. Although black tea is good, it is not suitable for everyone. People who are easily excited or sensitive, have poor sleep, or are physically weak are not suitable for drinking it. Black tea has a good refreshing effect.
2. The content of caffeine in black tea is slightly higher than in green tea. Drinking black tea in winter can stimulate the central nervous system of the brain, promote alertness and concentration, thereby making thinking more acute and enhancing memory. In addition, the diuretic function of black tea helps to eliminate waste materials from the body and achieve the effect of relieving fatigue.
3. The polyphenols in black tea (including their oxidation products) also have the ability to inhibit substances that destroy bone cells. To prevent the occurrence of osteoporosis, during the seasonal transition, one can adhere to drinking a small cup of black tea every day. Adding lemon to black tea can further strengthen the effect on bone health.
