Last Updated: Mar 10, 2023

It is known that coffee consumption can decrease the risk of hypertension (heart disease) and related death among people. However, a new study has shown that a higher intake of coffee can lead to a transient upsurge in blood pressure in people who are dealing with hypertension. The findings of the study reveal that the positive effect of coffee intake is based on people’s blood pressure levels.

In severe hypertension patients, Higher coffee intake can result in a severe increase in blood pressure in people who suffer from severely high blood pressure which will eventually elevate the risk of cardiovascular illness. Well, on the other hand, the intake of green tea is beneficial for lowering blood pressure in patients who suffer from hypertension. Furthermore, green tea can lower the odds of all-cause mortality and death linked to cardiovascular illness in the general population. In a recent study, health experts assessed the link between coffee or green tea intake and the risk of cardiovascular ailment-related death in men and women belonging to japan who have been dealing with different degrees of high blood pressure.

The study enrolled a total of 18,609 participants. These participants included 6,574 men and 12,035 women, belonging to 24 different communities in Japan. They have been asked to fill out questionnaires to collect health history, diet details, lifestyle, and demographic traits. As per their blood pressure levels, the participants have been divided into five groups, such as grade 2 hypertension, high‐normal blood pressure, optimal and normal blood pressure, grade 1 hypertension, and grade 3 hypertension.

The authors of the study have looked at the link between the rate of coffee intake and baseline traits of the participants belonging to each category. N advanced rate of coffee intake has been seen in younger participants, fewer vegetable eaters, smokers, and current drinkers. The participants who have been found with higher levels of cholesterol and low systolic blood pressure have been more likely to be frequent coffee drinkers. The findings of the study show that a greater rate of green tea intake has been seen in frequent fruit consumers, older participants, and employed participants.

A link between higher green tea intake rate and reduced total cholesterol level has been found in participants who have been dealing with grade 2 and grade 3 hypertension. The authors of the study have stated that During the follow-up period of 18.9 years, around 842 cardiovascular illness-related mortalities have taken place. The intake of two or more cups of coffee per day can increase the odds of cardiovascular illness-related death in people with grade 2-3 hypertension.

On the contrary, no such link has been seen in people who have optimal and normal blood pressure, high to normal blood pressure, or grade 1 blood pressure. The findings of the study have revealed that the intake of green tea does not shoot up the risk of heart disease-related death in people who suffer from grade 1 to 3 hypertension.

The new study highlights that a high level of coffee intake can lead to a twofold increase in the risk of heart disease-related death in people who have acute hypertension. However, it does not increase the risk of heart disease-linked death in people who do not have hypertension or grade 1 blood pressure.

The authors of the study have not been able to find any adverse effect of green tea intake on the risk of death related to heart disease in people who have acute or mild blood pressure issues.  Health experts who have been involved in the study have stated that greater vulnerability of people suffering from acute hypertension to the negative effects of caffeine might equalize its health benefits and shoot up the risk of death.


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