Answer:

High blood pressure, a common cardiovascular disease, occurs when blood pressure against artery walls remains elevated for extended periods. If uncontrolled, it can lead to serious complications like stroke, heart attack, heart failure, or kidney failure. Besides prescribed medication, diet, lifestyle habits, and especially daily beverage choices, play a crucial role in managing blood pressure.

Tea is a familiar beverage in Vietnam. Green tea is rich in antioxidants, particularly catechin and EGCG, which protect artery walls, reduce LDL cholesterol, and limit atherosclerosis. Moderate green tea consumption can slightly lower blood pressure, improve blood circulation, and reduce cardiovascular risks.

However, tea also contains caffeine, which can stimulate the central nervous system, increase heart rate, and cause a temporary rise in blood pressure. For those with pre-existing high blood pressure, excessive intake of strong tea or continuous consumption throughout the day may lead to insomnia, anxiety, palpitations, and even difficulty in managing blood pressure. Tea can also affect iron absorption and interact with some blood pressure medications if consumed immediately after taking them.

People with high blood pressure can drink 150-200 ml of green tea to help lower their blood pressure. Photo: Trong Nghia

You don't necessarily have to stop drinking tea, but you need to consume it sensibly. You can have 1-2 small cups (150-200 ml) daily, opting for green tea or low-caffeine herbal infusions like chamomile, artichoke, or lotus tea. Avoid strong tea, milk tea, or bottled teas high in sugar, as they increase blood sugar and negatively impact cardiovascular health. Avoid tea in the evening to minimize sleep disruption, and allow at least 1-2 hours between tea and blood pressure medication.

You should also follow a low-sodium diet, increase your intake of green vegetables, fruits, and omega-3-rich fatty fish; and limit salt, alcohol, and tobacco. Supplementing with natural extracts like policosanol (GDL-5) from South American sugarcane can help regulate blood lipids, support circulation, and naturally balance blood pressure. Maintaining a healthy weight, exercising regularly, and monitoring blood pressure frequently are key to preventing complications. Regular check-ups with your doctor will help adjust medication and diet to ensure your blood pressure is safely and effectively managed.

MSc. Dr. Nguyen Anh Duy Tung

Nutrihome Nutrition Center