Does coffee raise your blood pressure? What science says

Coffee is one of the most consumed beverages in the world, renowned for its stimulating effects linked to caffeine. But one question comes up regularly, especially among people suffering from high blood pressure: does coffee raise blood pressure? Should it be avoided?

Here is a complete and sourced analysis to understand the real impact of coffee on blood pressure.

The link between coffee and blood pressure: what we observe

Coffee contains caffeine, a substance that stimulates the central nervous system. When absorbed, caffeine can cause a slight increase in blood pressure, particularly in people who are not accustomed to consuming it.

Clinical studies have shown that caffeine can temporarily raise blood pressure by 5 to 10 mmHg in the hour following ingestion, with a peak between 30 minutes and 1 hour after consumption. This effect is often temporary and varies greatly from one individual to another.

What do the French health authorities say?

According to ANSES (the French Agency for Food, Environmental and Occupational Health and Safety), caffeine consumption is generally safe up to 400 mg per day for a healthy adult. This corresponds to about 3 to 4 cups of filter coffee.

However, ANSES indicates that people suffering from high blood pressure or cardiovascular disorders should limit their caffeine consumption, particularly due to its vasoactive effect (it acts on blood vessels).

Official source: ANSES – Opinion on the health effects of caffeine

Different effects depending on individual profiles

The response to caffeine varies greatly depending on:

• Frequency of consumption: regular drinkers develop a certain tolerance, with a weaker blood pressure response.

• Individual sensitivity: some people are genetically more sensitive to caffeine.

• General state of health: in the event of heart disease, even a low dose can be enough to disrupt blood pressure.

There is therefore no universal answer, but precautions that should be adapted on a case-by-case basis.

Can coffee cause chronic high blood pressure?

Long-term studies are reassuring: in healthy people, moderate coffee consumption does not appear to permanently increase blood pressure, or the risk of chronic high blood pressure.

Some research even suggests a cardiovascular protective effect of coffee, linked to its natural antioxidants (polyphenols). Specialty coffee, which is less oxidized and richer in beneficial compounds, can notably have a mild anti-inflammatory effect.

How to drink coffee without risking your blood pressure?

Here are a few recommendations for incorporating coffee into a balanced routine:

• Do not exceed 3 to 4 cups per day (about 400 mg of caffeine).

• Opt for filter or mild coffees (less concentrated than espresso).

• Avoid drinking coffee on an empty stomach or just before taking your blood pressure.

• Limit caffeine after 4 p.m. so as not to disrupt sleep (poor sleep increases blood pressure).

• If in doubt, opt for decaffeinated versions, which have no effect on blood pressure.

Good to know: the effects of coffee on health

• A cup of filter coffee (200 ml) contains about 80 to 100 mg of caffeine.

• A short espresso (30 ml) contains about 60 to 80 mg of caffeine.

• Caffeine has a more pronounced effect on older people, smokers, or anxious people.

• Decaffeinated coffee retains its aromas, but does not influence blood pressure.

• In athletes, coffee does not increase the risk of dehydration or overpressure if consumption is adapted.

And what about Shoukâ specialty coffees in all this?

At Shoukâ, we exclusively select specialty coffees, which are milder, less oxidized, and naturally rich in aromas. Roasted by hand in our Chamonix factory, our coffees are carefully prepared to offer a balanced taste experience, without excessive caffeine.

Thanks to a light roast and rigorous traceability, our coffees are suitable for both connoisseurs and those who wish to reduce their caffeine consumption while still treating themselves.

Find our coffees in our shops in Chamonix, Annecy, Lyon 2 and Lyon 6, or on our online store.

In summary: does coffee really raise blood pressure?

• Coffee can temporarily raise blood pressure, particularly in sensitive or unaccustomed people.

• It does not cause chronic high blood pressure if consumed in moderation.

• In the event of a medical condition or doubt, it is better to opt for milder or decaffeinated coffees.

• When incorporated intelligently, coffee can be part of a healthy lifestyle.