Whether or not drinking tea will cause an increase in blood pressure is mainly related to the amount and concentration of tea. Drinking a small amount of tea generally does not cause an increase in blood pressure, but drinking a large amount of tea for a long time may cause an increase in blood pressure; drinking light tea usually does not cause an increase in blood pressure, but drinking strong tea may increase blood pressure.
Tea contains caffeine active substance, when drinking too much tea or too high concentration, it will cause excitement, insomnia, at the same time, it can make the heart rate increase, cardiac output increase, resulting in increased blood pressure. However, drinking tea in moderation is also beneficial to one’s health. Tea has the effects of anticoagulation, inhibiting platelet aggregation, regulating blood lipids, improving blood HDL and improving the ratio of cholesterol to phospholipids in the blood.
Therefore, the effect of drinking tea on blood pressure depends on the amount and concentration of tea, but it is recommended that patients with high blood pressure drink as little strong tea as possible to avoid causing an increase in blood pressure.