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Can Caffeine Cause High Blood Pressure

/6should Blood Pressure Patients Avoid Coffee

Does Caffeine cause High Blood Pressure?

Blood pressure patients need not avoid coffee completely but should definitely limit their coffee intake. Coffee might cause issues to people dealing with chronic high blood pressure because of exposure to caffeine. If you are a BP patient, make sure that you always consult your doctor before including coffee in your daily diet.

People who dont have blood pressure problems but consume coffee daily can experience high blood pressure in the beginning but the body gradually gets used to the caffeine amount in the long run.

Is There A Link Between Caffeine Consumption And Blood Pressure Measurement

Caffeine consumption and blood pressure are linked only if youre measuring blood pressure within two hours of having caffeine. Caffeine spikes blood pressure 30 to 120 minutes after intake , but this is the only time when a noticeable difference in blood pressure occurs. Caffeine has a half-life of three to six hours, so its possible to see a slight variation in blood pressure within this time period as well, but its unlikely to be pronounced.

Caffeine affects diastolic blood pressure by four to 13 points, and it can impact systolic blood pressure by three to 15 points. If youre going to have your blood pressure checked, avoid taking caffeine beforehand in order to get an accurate reading and prevent any unnecessary concerns or actions.

What Is High Blood Pressure Or Hypertension

Blood pressure is created by the force of blood pushing against artery walls as it is pumped around the body by the heart.

Two numbers are reported when blood pressure is measured. The first number is the systolic pressure – the pressure in your arteries when your heart beats. The second number is the diastolic pressure, which is the pressure in your arteries when your heart is at rest between beats. As mentioned above, a normal blood pressure reading is less than 120/80 mm Hg.

High blood pressure, also known as hypertension, is a consistent increase in pressure that causes the heart to pump harder and damages blood vessels. It is a primary cause of death worldwide and is a risk factor for the development of cardiovascular heart disease, stroke and heart attack.

While caffeine consumption can cause a short-term increase in blood pressure, it is not generally thought to increase the risk of hypertension. Although, some research suggests that certain people could be at increased risk from cardiovascular events such as coronary heart disease or stroke because of caffeine consumption.

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How Much Is Too Much Caffeine

People are debating this currently, but less than 6 cups of coffee a day should be safe. If you drink more than that long term, you might be at higher risk for heart disease.

You may have heard some media outlets saying recently that its safe to drink as much as 25 cups of coffee a day. Thats an exaggeration. The study theyve been referring to didnt actually look at people who drank more than 25 cups of coffee per day. In fact, most of the people in the heavy coffee drinker category reported only drinking 5 cups a day. Also, the study measured blood pressure, heart rate, and blood vessel stiffnessnot whether patients developed heart disease. We also dont know how long patients in the study stuck to their reported caffeine consumption.

So, as we mentioned, 6 cups a day or less is generally fine. Really, the biggest health concern lies in how you prepare your drink. The sugar and cream that many people like to add to coffee and tea can come with far more health risks than caffeine itself. Those extra calories have no benefits and can raise your risk for diabetes and heart disease over time.

Is Caffeine Bad If I Have Hypertension

Does Caffeine Affect High Blood Pressure?

You may wonder if its safe to consume caffeine if your doctor has diagnosed you with hypertension. While you should ask you doctor just to be sure, having 1 to 2 cups of coffee or tea a day is usually considered safe.

If your doctor recommends that you regularly monitor your blood pressure at home, make sure to take any readings BEFORE you have your coffee or 6 hours after you finish drinking it, so you log your normal blood pressure and not your post-caffeine spike. Likewise, at each of your doctors appointments, you should let your doctor know when you last drank a caffeinated beverage .

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Does Caffeine Influence Blood Pressure

Yes and no. As previously outlined, it can cause short-term increase shortly after consumption. However, there is no evidence to show chronic caffeine consumption has a long-lasting impact on blood pressure meaning if youve been drinking coffee every day for 10 years it will have made virtually no impact on your blood pressureunless, of course, youre adding sugar or other calorie-dense ingredients that can lead to weight gain. But from the standpoint of looking specifically at caffeine, it is neutral with regard to long-term blood pressure.

Not everybody has the same acute reactions to caffeine, however. Tolerance is completely unique and differs from person to person. One person may drink coffee every day and get a buzz after one cup, while another may need two or three to exhibit the same response.

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How Caffeine And Alcohol Affect Your Blood Pressure

Ask someone what they can do to address high blood pressure , and the first answer is nearly always something like cut back on salt. We dietitians also like to teach people about foods you can add that can help . But rarely do I hear talk of alcohol and caffeine.

The bottom line is simple: Drink too much alcohol and high blood pressure is just one of numerous health consequences you risk. And while caffeine can increase blood pressure for 1-3 hours, in moderation its not considered a cause of hypertension or a concern in terms of overall cardiovascular health.

How much is too much? Heres what the blood pressure guidelines say:

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Seven Things To Eat Or Avoid To Lower Your Blood Pressure

Authors: Professor Clare Collins, Associate Professor Tracy Burrows and Dr Tracy Schumacher

High blood pressure is called the silent killer. Thats because it has no symptoms. Having high blood pressure increases your risk of heart disease, stroke, heart failure and kidney disease.

Six million Australian adults have high blood pressure 140/90 millimetres of mercury or more or take medications for it. Of those, four million have high blood pressure that isnt treated or under control.

No wonder heart disease and stroke directly cost the Australian economy A$7.7 billion a year.

There is some good news. High blood pressure can be treated or prevented. Eating oats, fruit and vegetables and beetroot, in particular helps. So does avoiding salt, liquorice, caffeine and alcohol.

Optimal blood pressure is 120 mmHg or less over 80 mmHg or less. Lowering it by 1-2 mmHg can have a big impact on reducing your risk of heart disease and stroke, and the nations health care costs.

Does Caffeine Increase Blood Pressure

TRUE or FALSE: Caffeine Causes High Blood Pressure?

Caffeine is a natural stimulant found in the nuts, berries, and leaves of certain plants. Caffeine is most commonly consumed as coffee or tea products, and some have estimated that these beverages may be the most widely consumed foods in the world.

Because caffeine is so common in all human cultures, a great deal of research has been done to discover the health effects of caffeine. Relationships between caffeine and heart disease, as well as the caffeine-blood pressure link, have been especially active fields of study.

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Can You Drink Powdered Energy Drinks Even With High Blood Pressure

Yes, you can drink energy drinks even if you have blood pressure, but, please consult your doctor before taking them.

Some articles like this one recommend that you should not consume energy drinks if you have high blood pressure, while others suggest you can.

In my opinion, it is best if you ask your doctor, but it is not necessary to cut out all energy drinks.

Remember that energy drinks are not the only ones that contain caffeine. There are other caffeinated beverages like coffee, tea, and sodas. Therefore, even if you dont have blood pressure, it is still better to limit your intake.

Lastly, please monitor yourself and if energy drinks are causing you problems, stop taking them completely.

Does Sugar Increase Your Blood Pressure

Yes, excessive use of sugar can increase your blood pressure.

Consuming sugar causes insulin levels to spike, which causes blood pressure and heart rate to rise.

If you already have high blood pressure, sugar can also cause weight gain and higher cholesterol levels.

Those with high blood pressure should consider reducing their sugar intake. Try sugar-free options if you really cant resist sweets. Furthermore, if you have high blood pressure, try consulting your doctor before consuming energy drinks.

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What To Eat To Lower Your Blood Pressure

Rolled oats

A review with five research trials included tested the impact of oats on systolic blood pressure and diastolic blood pressure in about 400 healthy adults.

The researchers found that systolic blood pressure was 2.7 mmHg lower and diastolic blood pressure was 1.5 mmHg lower when participants ate around 60 grams of rolled oats or 25 grams of oat bran per day.

This quantity of oats or oat bran contains around four grams of a type of fibre called beta-glucan.

For each extra one gram of total daily fibre, there was an extra 0.11 mmHg reduction in diastolic blood pressure.

Recommended minimum daily adult fibre intakes are 30 grams for men and 25 grams for women.

While some of fibres effect is due to weight loss, soluble fibres produce bioactive products when theyre fermented in the large bowel. These work directly to lower blood pressure.

To improve your blood pressure, eat rolled oats or oat bran for breakfast, add to meat patties, or mix with breadcrumbs in recipes that call for crumbing.


Beetroot is extremely rich in a compound called inorganic nitrate. During digestion, this gets converted into nitric oxide, which causes arteries to dilate. This directly lowers the pressure in them.

A review of 16 trials of mostly healthy young men found drinking beetroot juice was associated with a 4.4 mmHg reduction in systolic blood pressure. But it found no change in diastolic blood pressure.

Vitamin C

/6how To Check Whether Coffee Has Spiked Bp

How Do Alcohol and Caffeine Cause Hypertension?

In order to keep a track of your blood pressure and verify whether it has shot up or not, it is best to check it before and after drinking coffee. Check the blood pressure 30 minutes before drinking coffee and then check it 30 minutes after drinking coffee. If there is a significant increase in blood pressure, then the coffee might be the reason behind it.

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Does Caffeine Raise Blood Pressure

To be clear, caffeine does actually affect blood pressure. When you consume caffeine, whether it be from coffee, an energy drink, or supplement, one of its effects is to spike your blood pressure.

Caffeine raises blood pressure by blocking adenosine, a compound that helps blood vessels stay relaxed and open. Without the adenosine, blood vessels constrict, the heart must work harder to move blood through your system, and so the pressure rises.

This rise kicks off within 15 minutes of consumption and can last 4-6 hours. If you dont consume more, things should return to normal.

Many of us are in this position. We like our coffee or energy drink or soda or tea, and we pay no thought to the consequences of that little burst of blood pressure. Why? Because we never notice.

Hypertension, as stated above, has many risk factors, so you might get it irrespective of your caffeine consumption. If you get hypertension though, that spike in blood pressure can be serious, and caffeine will be one of the first things off the list if you get diagnosed with it.

For a small subset of us, our genetics make this all better or worse, depending on one little gene variant.

How Much Caffeine Should I Have

Many sources recommend limiting your caffeine intake to 200mg caffeine per day. This is roughly the equivalent of two 12 ounce cups of brewed coffee per day.

However, there are other factors to consider when figuring out what amount will suit you:

Personal Physiology

In general, the smaller and lighter you are, the more caffeine is likely to affect you. So you youll probably need to stick to a lower daily caffeine limit than 200mg.

At the other end of the scale, if you are overweight, caffeine is likely to have a greater effect on your blood pressure. So you will also need to keep to a lower daily caffeine intake.


Also, the older you get the more your blood pressure is likely to react to caffeine. This is especially the case once youre over 70 or so.

Find out for yourself how caffeine affects your blood pressure

To get a rough idea how much caffeine may affect your blood pressure, check your blood pressure.

Do a blood pressure reading before drinking caffeine, then 30-60 minutes after drinking caffeine. If its 5-10 points higher, then you are likely to be sensitive to it.

If you dont yet have a blood pressure monitor of your own then its a good idea to get one. Read more about that in our article here: do I need a blood pressure monitor?

But what if I have a good tolerance for caffeine?

So, however little you feel it affects you, better to be safe than sorry and cut down the caffeine.

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Coffee And Your Blood Pressure

Coffee has been part of the human diet for about 1,000 years. During much of that time, it has stimulated controversy and in the age of Starbucks, the dispute has blossomed from a tempest in a coffee pot to grounds for serious debate. Some of coffee’s negative press seems to depend on the widespread belief that anything that tastes so good must be bad for you.

But there is a serious side to the argument: Coffee stimulates the nervous system, increasing alertness. But many people are sensitive to even one cup of coffee, making them feel jittery or interfering with sleep.

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Is Blood Pressure Affected By Caffeine Withdrawal Symptoms

No Caffeine Day 2 – Caffeine and High Blood Pressure

Mia Benson

When under stress and pressured by deadlines, people tend to overdo it on their caffeine intake: tea, coffee, chocolate bars, anything with a strong caffeine kick will do. This is because caffeine is a stimulant. What that means is that the intake of caffeine results in alertness of the mind as the body, which in turn drives away sleepiness.

The presence of caffeine is lower in tea and coffee than it is in chocolate or cola and energy drinks.

So accordingly, this article deals with the consequences of downing too much caffeine and then suffering withdrawal symptoms which may or may not include blood pressure issues.

So Could Caffeine be the Cause of High Blood Pressure?

Caffeine is known to temporarily raise a person’s blood pressure which is, of course, and obviously the reason we call it “a stimulant”. There is a hormone called adenosine, and its task is to widen the arteries. Caffeine prevents this hormone from doing what it is supposed to, and the result of this is heightened blood-pressure. Another “side effect” of caffeine entering a human body is the heightened production of adrenaline, which in turn even more increases the given person’s blood pressure.

With all this said, it is easy to see how someone would assume that caffeine is considered a drug which tips the balance of a person’s natural blood pressure in general.

The Debate on Caffeine and High Blood Pressure

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/6side Effects To Watch Out For

Even though moderate amounts of coffee wont spell trouble for you, blood pressure patients should be vigilant about some accompanying symptoms. Insomnia, anxiety, heartburn, acid reflux and headache are some common symptoms that BP patients might experience after coffee intake. In such a scenario, it is best to contact your doctor immediately if the symptoms worsen.

Caffeine’s Effect On Blood Pressure

May 17, 2002 — The caffeine jolt of a java fix may cause a jump in blood pressure — a particular problem in people who already have high blood pressure. But don’t put your coffee cup down just yet. Researchers say the jury’s still out on the effects on caffeine on your heart.

This new study was presented today at the annual scientific meeting of the American Society of Hypertension in New York City.

Although there has been a lot of recent interest in studying how caffeine may affect the heart and blood pressure, the authors say it’s the first time an effect of caffeine has been found on the stiffness of arteries, an indicator of heart function.

In the study, caffeine quickly increased the stiffness of the large arteries in people with high blood pressure, said study author Charalambos Vlachopoulos, MD, of the department of cardiology at Athens Medical School in Greece, at a news conference.

Vlachopoulos and colleagues tested the effects of caffeine on the major arteries of 10 people who were being treated for high blood pressure and were an average of 62 years old. On alternating days, the participants were given either a pill containing 250 mg of caffeine or a placebo.

Thirty minutes after the caffeine was given, there was a big jump in the stiffness of their arteries, said Vlachopoulos. The effect peaked after 60 minutes and remained significant for at least three hours.

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