Q: Can drinking green tea have an effect on blood pressure?
A: A study published in the Archives of Internal Medicine examined the effects of drinking green tea on blood pressure. The study revealed that people, who drink 120 ml (about 5 ounces) per day or more of green or oolong tea for at least one year, reduced the risk of developing high blood pressure. In fact, the risk of developing high blood pressure decreased by 46 percent for those who drank between 120 ml and 599 ml of green tea per day and decreased by 65 percent for those who drank more than 600 ml per day. This was compared to people who don't drink tea at all or drink less than 120 ml per day or 120 ml or more but for less than a year.
This study also showed that those who drank more than 120 ml of tea per day for more than one year had lower systolic blood pressures (the top or first number on your blood pressure reading) compared with those who didn't drink tea or that amount for a year or more. Other studies have looked at the relationship between green tea and blood pressure and found similar results. But still other studies have not proven any benefit regarding high blood pressure.
More research is needed to confirm the effects of regular consumption of green tea on blood pressure. There might be other benefits to drinking green tea. For examples, some studies have suggested its potential to prevent certain cancers. Studies also show that green tea (and caffeine in general) can interfere with the effectiveness of some medications, including drugs for depression and anxiety.
Diet, exercise and weight management all play an important role in regulating blood pressure and preventing cardiovascular disease. Certain individuals who follow the DASH (Dietary Approaches to Stop Hypertension) diet have been shown to lower their blood pressure. Have a conversation with your doctor about important lifestyle changes that you can make, including dietary changes, in order to optimize your health and blood pressure and prevent cardiovascular disease.
For More Information:
American Heart Association. What Can I Do? |
