High Coffee Consumption Linked to an Increased Risk of Cardiovascular Disease-Related Death in Hypertensive People

High Coffee Consumption Linked to an Increased Risk of Cardiovascular Disease-Related Death in Hypertensive People
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According to a new study published in the Journal of the American Heart Association, drinking coffee in excess may lead to an increase in the risk of cardiovascular disease related mortality in the case of those suffering from severe hypertension.
This is quite interesting, given the fact that drinking coffee is known to reduce the risk of developing hypertension.
However, if you already deal with hypertension, high coffee intake can have the opposite effect, being really dangerous due to it increasing blood pressure.
More precisely, there is a lot of evidence showing that coffee consumption and its effects on our health depend a lot on one’s blood pressure level.
That being said, in the case of those diagnosed with hypertension, coffee may cause a significant increase in blood pressure, which then increases the risk of cardiovascular disease.
Thankfully, there is an alternative that offers similar good effects to coffee without the risk – green tea!
In fact, green tea actually reduces mortality in general, including cardiovascular disease-related mortality.
The study looked into the link between drinking coffee or green tea and the risk of cardiovascular disease related mortality.
There were 18,609 participants from Japan, 6,574 men and 12,035 women, coming from 24 different communities from all over the country.
They were required to complete a questionnaire on their medical history, demographic characteristics, diet and lifestyle.
Trained personnel measured their baseline blood pressure and based on their levels, the participants got categorized into 5 separate groups as follows:
– Normal blood pressure
– High‐normal blood pressure
– Grade 1 hypertension
– Grade 2 hypertension
– Grade 3 hypertension.
The step that followed involved looking into the relationship between coffee consumption and the changes happening to each category’s baseline blood pressure.
More coffee consumption was seen among the younger participants but also current smokers, drinkers and finally, fewer vegetable eaters.
In addition to that, those with higher cholesterol levels and lower systolic blood pressure were more likely to be habitual coffee drinkers as well.
The same research also looked into the link between green tea consumption and the baseline blood pressure of each category.
That being said, the team noticed higher green tea consumption among the older participants, the employed participants and those who liked to consume fruit frequently.
Furthermore, there was also a link between higher green tea drinking and lower cholesterol levels, especially among the participants included in the grade 2-3 hypertension category.
What followed was a period of nearly 19 years of follow-up observations, time during which 842 people passed away as a result of cardiovascular disease.
The researchers concluded that drinking two or more cups of coffee per day increased the risk of cardiovascular related deaths among the participants in the grade 2 and 3 hypertension categories.
On the other hand, the same link was not observed among the participants in the normal blood pressure category, high normal blood pressure category or even grade 1 hypertension category.
As for green tea consumption, it wasn’t found to increase the risk of cardiovascular disease related deaths among those in the grade 1 to 3 hypertension categories either.
In fact, it even managed to slightly reduce the risk for those with normal and high-normal blood pressure as long as they consumed 1 to 2 or 5 to 6 cups of green tea per day, respectively.
In conclusion, this study found that habitual coffee drinking in high quantities can lead to 2 fold induction in the risk of cardiovascular disease related deaths in the case of those suffering from severe hypertension.
The same cannot be said about those with grade 1 or no hypertension.
Finally, high green tea consumption was not found to affect any of the participants in the same way as coffee.


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Katherine Baldwin

Katherine is just getting her start as a journalist. She attended a technical school while still in high school where she learned a variety of skills, from photography to nutrition. Her enthusiasm for both natural and human sciences is real so she particularly enjoys covering topics on medicine and the environment.

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