Disadvantages of drinking tea

• Tea is a rich source of a class of compounds called tannins. Tannins can bind to iron in certain foods, rendering it unavailable for absorption in your digestive tract.
• Tea leaves naturally contain caffeine. Overconsuming caffeine from tea, or any other source, may contribute to feelings of anxiety, stress, and restlessness.
• Because tea naturally contains caffeine, excessive intake may disrupt your sleep cycle.
• Tannins in tea leaves are responsible for the bitter, dry taste of tea. The astringent nature of tannins can also irritate digestive tissue, potentially leading to uncomfortable symptoms, such as nausea or stomach ache.
• Caffeine may also contribute to an increase in total stomach acid production.
• Exposure to high levels of caffeine from beverages like tea during pregnancy may increase your risk of complications, such as miscarriage and low infant birth weight.
• Routine consumption of caffeine from tea may contribute to recurrent headaches.
• Caffeine is a habit-forming stimulant, and regular intake from tea or any other source could lead to dependence. Symptoms of caffeine withdrawal may include headache, irritability, increased heart rate, and fatigue.