Tea contains tannins, which have astringent and antibacterial properties. However, when large amounts of tea are drunk, these substances reduce the absorption of iron and can lead to a deficiency of this element. Iron from vegetable sources such as nuts, beans, spinach is particularly poorly absorbed due to tannins.
Tea contains caffeine. The longer the drink is brewed, the more caffeine it contains. Large amounts of caffeine can cause anxiety, increased stress, as well as irritability, sleep problems and headaches. This has been proven by scientific research. Excessive caffeine and tea consumption also have side effects such as heartburn, dizziness, and increased acid reflux symptoms.
If you drink too much or on an empty stomach, it will lead to some unpleasant symptoms. Among them – nausea, stomach pain.
Also, tea leaves may contain toxic elements. Scientific studies confirm that toxins are found in many types of tea. For example, a study published in the Journal of Toxicology found that all 30 samples contained lead.
A safe dose of tea is 3-4 cups a day (710-950 ml). However, for some people, side effects may occur when they drink smaller amounts of the beverage.
News cannot be equated with a doctor’s prescription. Consult an expert before making a decision.
Source: Ferra
