{"id":57471,"date":"2023-03-10T09:30:07","date_gmt":"2023-03-10T14:30:07","guid":{"rendered":"https:\/\/www.singlecare.com\/blog\/?p=57471"},"modified":"2026-01-26T12:18:13","modified_gmt":"2026-01-26T17:18:13","slug":"does-caffeine-raise-blood-pressure","status":"publish","type":"post","link":"https:\/\/www.singlecare.com\/blog\/does-caffeine-raise-blood-pressure\/","title":{"rendered":"Does caffeine raise your blood pressure?"},"content":{"rendered":"

If you find yourself reaching for a cup of coffee every morning or swigging an energy drink each afternoon, you\u2019re not alone. Caffeine is the world\u2019s most-consumed drug\u2014found in the leaves and fruits of some plants, and a key ingredient in caffeinated beverages like coffee, energy drinks, soft drinks, and black or green tea. It\u2019s also found in energy snacks and some non-prescription drugs.<\/span><\/p>\n

You know that caffeine gives you a boost, and it\u2019s those same energizing properties that can raise blood pressure, even in people with no history of high blood pressure (hypertension). Should you avoid caffeine if you have high blood pressure, or is it safe to consume? Read on to learn more.<\/span><\/p>\n

How does caffeine affect blood pressure?<\/span><\/h2>\n

Caffeine is a stimulant that causes a short-term increase in blood pressure. \u201cIt can cause your heart rate and the force of your blood flow to increase temporarily,\u201d says Flora Sadri-Azarbayejani<\/a>, DO, MPH, the medical director at <\/span>Psyclarity Health<\/span> and former family physician. This increase in blood flow may lead to an immediate elevation in blood pressure, which usually lasts a few hours.<\/span><\/p>\n

\u201cThe impacts on blood pressure are real,\u201d says <\/span>Danielle Kelvas, MD<\/span><\/a>, the chief medical adviser at<\/span> Sleepline<\/span>. \u201cWhen I worked in the ER, I had several cases of teenagers who came in with arrhythmias [also known as irregular heartbeat] from too many energy drinks.\u201d\u00a0<\/span><\/p>\n

How each individual responds to caffeine is unique. Someone who drinks one cup of coffee daily has likely built a tolerance to it, where their body has become used to it and more caffeine is needed to feel an effect. If you\u2019ve developed a <\/span>caffeine tolerance<\/span><\/a>, it\u2019s likely you won\u2019t notice any difference in blood pressure. On the other hand, a person who consumes caffeine infrequently or has a sensitivity to it might feel more side effects.\u00a0<\/span><\/p>\n

How long does caffeine raise blood pressure?\u00a0<\/span><\/h3>\n

Caffeine works quickly and can cause a temporary spike in blood pressure levels as soon as 30 minutes after consumption. The elevation typically lasts between one to four hours, says Dr. Sadri-Azarbayejani. The effects of caffeine can last longer depending on how much and what type was consumed. For instance, a 10-ounce cup of regular coffee is digested more quickly than a caffeine pill, which can have effects for three to seven hours.<\/span><\/p>\n

Everyone\u2019s response to caffeine is different, but for those prone to high blood pressure, or chronic hypertension, caffeine\u2019s effects may be more serious and longer-lasting. This is particularly true if someone is drinking more than the recommended daily amount, says Dr. Sadri-Azarbayejani, as it increases the risk of arrhythmia and increases blood pressure for a longer period during the day.\u00a0<\/span><\/p>\n

Caffeine is a vasoconstrictor, meaning that it narrows blood vessels. This makes it more difficult for the heart to pump blood through them. When you consume caffeine throughout the day, it can increase your blood pressure chronically, because your heart is working harder to get blood through the constricted vessels.\u00a0<\/span><\/p>\n

People with hypertension should be cautious when consuming caffeine and should reduce their caffeine intake to 400 mg or less to prevent long-term blood pressure elevation. And if you notice that you experience signs of elevated blood pressure after caffeine consumption, let your healthcare provider know; you might have an increased sensitivity to caffeine.<\/span><\/p>\n

Can people with high blood pressure drink coffee?<\/span><\/h2>\n

For most people, a cup of coffee is fine and won\u2019t have any long-lasting impacts on blood pressure. The<\/span> U.S. Food and Drug Administration<\/span><\/a> recommends no more than 400 mg of caffeine daily for healthy adults, which is about four 10-ounce cups of coffee. If you have hypertension, it\u2019s likely that you can enjoy a cup of <\/span>coffee safely<\/span><\/a>, but it\u2019s important to seek medical advice from your healthcare team first; their recommendation will likely depend on how serious your hypertension is and how much coffee you\u2019ve been drinking.\u00a0<\/span><\/p>\n

If you have caffeine, like a cup of coffee, it might be best in the morning, when you naturally have lower blood pressure after being at rest overnight. It tends to be the highest midday after moving and running around, says Dr. Kelvas.<\/span><\/p>\n

\u201cIf your blood pressure is wildly out of control, or above 140\/90 mmHg, avoid caffeine,\u201d <\/span>Dr. Kelvas says.<\/span> Normal blood pressure is less than 120\/80 mmHg, according to the<\/span> Centers for Disease Control and Prevention<\/span><\/a>.<\/span><\/p>\n

\u201cHaving chronically high blood pressure increases your risk of heart attack and stroke, which largely outweighs the benefits of consuming caffeine,\u201d Dr. Kelvas says. \u201cIt’s always a risk versus benefit analysis.\u201d<\/span><\/p>\n

Other factors can play a role in whether you should cut back on caffeine or eliminate it entirely, including whether or not you have other cardiovascular diseases. Dr. Kelvas recommends that patients on anti-arrhythmia medication steer clear of caffeine. Blood pressure medication like beta blockers can be affected by caffeine, so check with your provider, she says. If your high blood pressure is not too severe, a cup of coffee (with no more than 200 mg of caffeine a day) is likely safe.\u00a0<\/span><\/p>\n

RELATED: <\/b>What causes hypertension?<\/b><\/a><\/p>\n

Does coffee have heart health benefits?<\/span><\/h2>\n

High blood pressure can be a risk factor for health events like heart attacks and strokes, and often doesn\u2019t have visible symptoms. But if you\u2019re a coffee connoisseur and your blood pressure is under control, good news: Coffee consumption can be good for your heart. This is important because, over time,<\/span> untreated hypertension<\/span><\/a> can narrow your arteries, leading to heart attacks and strokes.\u00a0<\/span><\/p>\n

One review<\/span><\/a> found that, in healthy people, drinking three to five cups of coffee (remember to keep it under 400 mg of caffeine a day) reduced the risk of heart disease by 15%. The same review found that compared to not drinking coffee at all, between one to five cups daily is associated with a lower risk of death.\u00a0<\/span><\/p>\n

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