Creatine and High Blood Pressure: What Recent Research Says

Creatine and High Blood Pressure: The Short Answer

If you have high blood pressure, I can’t give you a blanket yes or no about starting creatine: the decision depends on your blood pressure control, kidney health, medications, and clinician’s advice. Research in generally healthy adults has not established that creatine monohydrate reliably raises resting blood pressure, but those findings do not prove it is safe for every person with hypertension.

After 30 years as a unit patient care specialist, I’ve learned that the right supplement question is rarely just “Does it work?” It is also “What do we know about someone with my health history?” That distinction matters here. Creatine is not a blood-pressure treatment, and it should never replace a prescribed medicine or a plan from your healthcare professional.

Why the answer isn’t a simple yes or no

Online advice often swings between two confident statements: “Creatine is harmless for everyone” and “Anyone with hypertension must avoid it.” Neither is a careful reading of limited evidence. Blood pressure is affected by many factors—including the condition being treated, kidney function, medication changes, activity, sleep, and how a reading was taken—so a change after starting a supplement does not automatically prove cause and effect.

In the search results I reviewed, some articles lead with a warning to avoid creatine if you have hypertension, while newer explainers tend to offer broad reassurance and checklists. Both leave an important question underexplored: Were people with diagnosed high blood pressure, kidney concerns, or cardiovascular prescriptions actually included in the study being discussed? That is the practical gap I want readers to notice before treating a result in healthy volunteers as an answer for their own situation.

Quotable fact: A study that finds no significant blood-pressure change in healthy volunteers cannot establish that creatine is safe for every person taking antihypertensive medication.

What recent research actually tells us

A 2024 randomized controlled trial, “Effects of acute creatine supplementation on cardiac and vascular responses in older men,” was published in Clinical Nutrition ESPEN (doi: 10.1016/j.clnesp.2024.07.008). It assigned older men to creatine, placebo, or control groups for seven days. In the creatine group, systolic pressure showed a numerical decrease on one measurement—from 144.0 to 136.1 mmHg—but the change was not statistically significant (p = 0.08). The study did report a change in one arterial-stiffness measure.

Quotable fact: In that 2024 trial, a seven-day creatine result in older men suggested a systolic-pressure trend, not proof that creatine lowers blood pressure or treats hypertension.

The size and eligibility matter as much as the headline: the trial included only 24 men overall, and the paper says a history of kidney problems and regular use of cardiovascular medications were among the main reasons people screened out. It therefore cannot answer whether a person taking an ACE inhibitor, a diuretic, or another prescription should start creatine. A separate 2025 pilot in Nutrients studied vascular-function measures in just 12 healthy older adults over four weeks; it was not a trial of creatine as a hypertension treatment. These are interesting early data, not a substitute for research in people with diagnosed high blood pressure.

Quotable fact: The 2024 older-men trial excluded people for kidney problems and regular cardiovascular-medication use, so it cannot settle the medication-safety question for those groups.

If you want a broader introduction to evidence and safety questions for later life, see our article on what studies say about creatine for older adults. The key lesson is not “the study proves creatine is fine.” It is that study populations and your own medical context both matter.

Does creatine-related water change mean blood pressure will rise?

One common concern I see in online discussions is, “Creatine pulls in water—could that push my blood pressure up?” That is a reasonable question, but a person noticing fuller muscles or a scale change cannot tell from that alone what is happening to their blood pressure. Nor does a theory about where water is stored amount to proof of a blood-pressure effect in people with hypertension.

When someone says, “I started creatine and my readings went up,” I would take the observation seriously without assuming the supplement caused it. A single home reading can shift with timing, recent activity, stress, caffeine, cuff fit, or simply taking a measurement before sitting quietly. If you and your clinician decide to try a supplement, ask what readings to record, when to take them, and what change should prompt a call. Do not dismiss repeated high readings as “just water,” and do not use a forum comment to diagnose the cause.

Creatine also should not be used to lower blood pressure. Keep following your treatment plan and the habits your clinician has recommended. For a related look at a different safety concern, you can read our research guide to creatine for women over 50.

What should I ask my clinician before trying creatine?

Rather than asking only, “Is creatine safe?”, bring the whole picture to the person who knows your history. In my healthcare work, a clear medication list and a specific question are more useful than a vague reassurance request. You might ask:

• “Given my recent blood-pressure readings and health history, is creatine appropriate for me—or should I avoid it?”
• “Do my kidney history, recent lab results, or medicines change your advice?”
• “If you think a trial is reasonable, what product, amount, and follow-up plan do you recommend?”
• “Should I record blood pressure before starting and again after, and what readings mean I should contact you?”
• “Could taking creatine affect how you interpret a creatinine-based kidney blood test? Should I mention it before lab work?”

That last question is useful because creatine use can be relevant context when a clinician interprets a creatinine result; only your clinician can decide what a result means alongside your other information. Bring the supplement container or a clear photo of its label, and list all prescriptions, over-the-counter medicines, and other supplements. Don’t change a prescription or lab plan on your own.

If you have kidney disease or a history of kidney problems, are taking medicine that affects kidney function, or have blood pressure that is not well controlled, make that the first part of the conversation—not a detail to add afterward. “Can I take creatine if I have high blood pressure?” is exactly the kind of question worth taking to your clinician before opening a tub.

What is the best liquid to mix creatine with?

For the priority search question “best liquid to mix creatine with,” the simple answer is that unflavored creatine monohydrate can be mixed into a beverage you already tolerate; no special drink has been shown to make it safer for blood pressure. Plain water is a straightforward option. The important point for someone monitoring hypertension is not to treat juice, coffee, a sports drink, or a large glass of water as a way to cancel out a supplement risk.

Look at the whole drink, especially if your clinician has asked you to watch sodium, caffeine, sugar, or fluid intake. A flavored sports beverage may have ingredients you are trying to limit, and a prescription plan may include fluid guidance. Follow that individualized advice rather than generic internet hydration targets. You can compare options in our guide to mixing creatine with juice and other drinks; whichever liquid you choose, it does not change the need to discuss hypertension and medications with your clinician.

ATO Health’s unflavored, micronized creatine monohydrate is designed to mix into a drink without adding a flavor of its own. That product detail is about convenience—not a claim that it prevents or treats high blood pressure.

How I’d approach this as a healthcare professional

My honest answer to the Reddit-style question “Does creatine raise blood pressure?” is: current small studies do not give us a reliable yes or no for every person, and they do not settle safety for people with hypertension or on cardiovascular medication. If creatine is something you are considering, make the choice with your own clinician, using your health history and actual readings—not a scary anecdote or a brand’s reassurance.

That also means we should be honest about the gap. The 2024 trial offers a small, short look at older men who were screened to exclude some kidney and medication concerns. The 2025 vascular-function pilot was also small and involved healthy older adults. Neither tells us what happens long-term in a broad group of adults living with high blood pressure. That unanswered question is more important than a catchy claim that creatine either raises or lowers everyone’s pressure.

If a clinician says it is reasonable for you, ask them how to monitor and when to check back. If they advise against it, respect that individualized recommendation. For more on the general evidence around different forms, see our comparison of creatine monohydrate and HCL.

Frequently Asked Questions

Is creatine safe if I have high blood pressure?

There is not enough direct evidence to give every person with hypertension the same answer. Discuss your blood-pressure control, kidney history, medicines, and monitoring plan with your healthcare professional before starting.

Does creatine raise blood pressure?

Small studies in generally healthy participants have not established that creatine reliably raises resting blood pressure, but they do not prove safety for everyone with hypertension. If you notice a sustained change, contact your clinician rather than assuming what caused it.

Can creatine increase blood pressure?

A Reddit user asked whether creatine can increase blood pressure, but comments are personal reports, not controlled evidence. A 2024 small trial in older men found a non-significant systolic-pressure trend after seven days; it cannot show what will happen to an individual reader.

Is creatine safe to take if I have a history of high blood pressure and stroke?

That history makes individualized medical advice especially important. Do not start a supplement based on a forum answer; share your full history and current medicines with your clinician first.

What should I do if creatine seems to increase my blood pressure?

A Reddit post described a personal increase, but one person’s experience cannot establish a general effect. Record readings as your clinician has advised and contact them about a persistent change; do not stop prescribed blood-pressure medicine or make medication adjustments on your own.

Should I monitor my blood pressure if I take creatine?

A Reddit discussion specifically raised monitoring. Ask your clinician whether home readings make sense for you, how to take them consistently, and what result should prompt follow-up. Do not rely on a single reading or a cutoff copied from a forum.

If you and your healthcare professional decide creatine fits your situation, take a look at ATO Health Creatine Monohydrate Powder—500 g, unflavored, and micronized for easy mixing. Please treat it as a supplement to discuss, not a treatment for hypertension.

Have you discussed creatine with your clinician while managing high blood pressure? What question do you wish someone had answered clearly?