Tea contains caffeine, a stimulant that can keep you awake. Drinking tea in the evening or at night can disrupt your sleep pattern, leading to insomnia
Tea is a diuretic that can cause an increase in urine production, leading to dehydration. It is important to drink water along with tea to avoid dehydration
Tea contains tannins, which can irritate the stomach lining, leading to nausea, vomiting, and stomach pain
Excessive consumption of tea can lead to a decrease in iron absorption, leading to iron deficiency anaemia. Tea can also interfere with the absorption of other minerals like calcium and magnesium
Some people are sensitive to the caffeine in tea, which can cause headaches. Drinking too much tea can also lead to caffeine withdrawal symptoms like headache, fatigue, and irritability
Caffeine in tea can increase anxiety levels, especially in people who are sensitive to caffeine. Drinking too much tea can lead to jitteriness, nervousness, and anxiety
Tea contains tannins, which can stain teeth and cause tooth decay. Adding sugar to tea can also increase the risk of tooth decay
Some compounds in tea can interact with medications like antibiotics, blood thinners, and antidepressants, leading to adverse effects