Tea contains caffeine, which can cause insomnia, restlessness, anxiety, palpitations, and digestive issues.
Tea contains tannins, compounds that can interfere with the absorption of non-heme iron from your diet.
Tea, especially black tea, can stain your teeth over time due to its dark color.
Some people are sensitive to the tannins in tea, which can irritate the digestive tract and lead to stomach upset, acid reflux, or gastritis.
Excessive consumption of tea, has been linked to skeletal fluorosis, a condition that affects the bones and joints due to excessive fluoride intake.
Tea, particularly black tea, contains oxalates, which can contribute to the formation of kidney stones in susceptible individuals.
High levels of caffeine intake during pregnancy have been associated with an increased risk of miscarriage and low birth weight.
Excessive caffeine intake from tea can lead to increased anxiety, restlessness, and nervousness, especially in individuals who are sensitive to caffeine.
Some studies suggest that excessive caffeine intake can interfere with calcium absorption, potentially affecting bone health in the long run.
While tea is mostly water, the diuretic effect of caffeine can lead to increased urination and potential dehydration if not enough water is consumed to compensate.