This common leaf is widely grown in many areas across Vietnam. According to a British expert, brewing tea from this leaf may help stabilize blood pressure and prevent type 2 diabetes.

Diabetes and high blood pressure are chronic conditions that are rapidly increasing in Vietnam. If not detected and treated in time, these diseases can progress and lead to serious complications such as stroke, heart failure, and kidney failure. Therefore, early prevention is a top priority for maintaining good health.

To prevent diabetes and hypertension, experts recommend maintaining a healthy diet, limiting harmful foods, and increasing the intake of beneficial ones. In addition, certain beverages can help regulate blood sugar and blood pressure.

According to the UK-based Express newspaper, Dr. Emma Derbyshire, a nutritionist, said peppermint tea is one of the beverages that can effectively help regulate blood sugar levels and blood pressure.

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Peppermint Tea Helps Control Blood Sugar

Dr. Emma shared:

“Some evidence suggests that peppermint leaves can regulate digestive enzymes, support glucose absorption and metabolism, and help stabilize blood sugar. Peppermint tea has been shown to improve insulin sensitivity and lower fasting blood glucose levels.”

She added:

“According to several studies, peppermint leaf extract and its polyphenols may help prevent the formation of advanced glycation end-products (AGEs)—a factor that increases the risk of developing type 2 diabetes. Therefore, drinking a cup of peppermint tea daily may help reduce the risk of type 2 diabetes.”

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Peppermint Tea Helps Regulate Blood Pressure

Dr. Emma noted that peppermint contains compounds that help relax blood vessels, contributing to lowering blood pressure. She cited studies showing that peppermint may reduce both systolic and diastolic blood pressure.

“In addition, peppermint’s calming effect may help reduce blood pressure spikes related to stress. Drinking peppermint tea—especially caffeine-free—can be a gentle way to support cardiovascular health when combined with other lifestyle changes,” she said.

She referenced a study from the University of Central Lancashire, UK, which explored peppermint’s cardiovascular protective properties. In the study, participants consumed 50μL of diluted peppermint extract in 100ml of water, twice daily for 20 days, while a control group received a placebo. The results showed significantly reduced blood pressure and triglyceride levels in the peppermint group compared to the placebo group—a notable benefit for heart health.

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Peppermint and Peppermint Tea Are Familiar in Vietnam

Peppermint leaves are a common herb in Vietnam, harvested from the peppermint plant. The leaves can be used to brew tea or as a culinary herb in many Vietnamese dishes.

According to Medlatec Hospital and Long Chau Pharmacy, peppermint is mainly cultivated in provinces such as Lai Chau, Lao Cai, Son La, and Nghe An. Since it is widely grown, peppermint is usually affordable, costing around 10,000 VND per bunch (approx. $0.40 USD).