Although many benefits are known from consuming this tea, researchers have found a negative side to green tea.
Namely, enjoying green tea can stop the effects of drugs for hypertension.
Green tea contains tannins which many limit absorption of iron from fruit and vegetables. But if you drink it with lemon (vitamin C), it will destroy this effect.
This tea should not be combined with various drugs because it contains caffeine. To know exactly what you can and can’t drink, it is best to consult your doctor, especially if you have a history of the disease.
Researches from the Medical Faculty in Fukushima concluded that green tea can also reduce the effectiveness of certain medicines for hay fever and advise that it is mandatory to consult your doctor or physician before consuming.