Green tea, oolong tea, and hibiscus tea contain many compounds that help dilate blood vessels, contributing to lowering blood pressure.
Dr. Tran Quoc Hoai, Cardiovascular Center, Tam Anh General Hospital, Ho Chi Minh City, said that high blood pressure is one of the main risk factors leading to cardiovascular disease (heart failure, arrhythmia, myocardial infarction...) and stroke.
According to the National Heart Association, a patient is diagnosed with hypertension when blood pressure measured in the clinic is ≥ 140/90 mmHg. Normal blood pressure in adults is about ≤ 120/80 mmHg.
High blood pressure can be improved by combining lifestyle adjustments such as exercise, weight loss, healthy diet, reducing salt, avoiding stress... Doctor Hoai suggests some types of tea such as hibiscus tea, chamomile tea, olive leaf tea... containing compounds that are good for blood vessels, improve arterial activity, reduce inflammation, and lower blood pressure. These drinks also help balance bad cholesterol and triglycerides - factors that accelerate the process of atherosclerosis.
Hibiscus tea
Hibiscus tea is made from dried hibiscus petals, is red in color, and has a slightly sour taste. It contains anthocyanins and polyphenols that can dilate blood vessels, thereby reducing systolic and diastolic blood pressure.
Olive leaf tea
This herbal-flavored beverage contains compounds like oleuropein and hydroxytyrosol that help regulate blood pressure by dilating blood vessels.
Hawthorn Tea
Hawthorn tea has a sweet and sour taste, improves blood circulation and helps lower blood pressure.
Drinking 1-2 cups of tea a day is good for heart health. Photo: Freepik
Chamomile tea
Chamomile tea contains many beneficial compounds such as flavonoids, terpenoids and coumarins, which promote relaxation, reduce stress, and indirectly maintain stable blood pressure. This type of tea is also loved by many people for its anti-inflammatory, antioxidant, liver-protecting, and cancer-preventing properties.
Oolong tea
Catechins and antioxidants in oolong tea stimulate proteins in the smooth muscle of blood vessels (SMF). When this protein is activated, blood vessels dilate, blood circulates better, thereby reducing blood pressure. Oolong tea also contains the amino acid L-theanine, which can reduce blood pressure in people who are often stressed and anxious.
Green tea
Green tea contains bioactive compounds called catechins, especially epigallocatechin gallate (EGCG), which have many health benefits, including lowering blood pressure. Dr. Hoai calls it a natural vasodilator, which helps promote smoother blood flow through arteries and capillaries, reducing pressure on the heart.
Green tea has a natural vasodilating effect, stabilizing blood pressure. Photo: Freepik
According to Dr. Hoai, people with high blood pressure who drink tea every day can see a clear reduction in blood pressure after a few weeks to a few months. However, this drink also has some potential unwanted effects as follows:
Stress: Caffeinated beverages can cause stress, sleep disturbances, or increased heart rate in some people who are sensitive to the substance.
Stomach upset: Drinking too much tea on an empty stomach can put you at risk of digestive problems or acid reflux.
Drug interactions: Some teas, such as green tea, may interfere with the absorption or reduce the effectiveness of certain medications.
Stain teeth if taken for long periods of time.
Dr. Hoai noted that people with high blood pressure should not use tea as a substitute for daily water. Patients should consult a cardiologist or nutritionist about the type of tea suitable for their physical condition, dosage, and time of use.
Thu Ha
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