Using this vegetable properly can bring positive effects to people with pre- excess blood pressure or mild hypertension. However, to maximize the effects and safety, it is necessary to rely on instructions from medical research.
According to the World Health Organization on medicinal plants in Asia, lettuce can be used fresh (lively), made with tea, water extract or capsule.
The most popular form of use in Vietnam is grinding fresh fish lettuce for drinking water, about 50100ml per day, divided into 1-2 times after meals. Lettuce extract can help regulate blood pressure by reducing the activity of ACE (angiotensin-converting enzyme) - a factor that increases blood pressure in the body.
The study also recommends using lettuce in the form of tea such as dried, stewed with hot water, about 12 cups per day to help control stable blood pressure in people with early-stage hypertension, while not causing significant side effects. Experts also note that you should not overdose (>200ml/day of fresh juice) because it can cause colds or digestive disorders.
Lettuce also has a mild diuretic effect, helping to reduce circulation volume and reduce blood pressure. However, people with high blood pressure should consult a doctor before using it regularly, especially if they are taking blood pressure medication to avoid unwanted interactions.
