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Magnesium for Optimising Blood Pressure

High blood pressure, or hypertension, is a global health concern affecting millions of people. One of the key factors that has been shown to support healthy blood pressure is magnesium. 

Magnesium, fast becoming a miracle substance is making its way into healthier lifestyles and studies are beginning to show just how beneficial it is. Restless legs, anxiety and heart disease are just some of the areas where magnesium has been proven to deliver amazing results and tucked in among these is blood pressure.

In this article, we'll delve into the incredible benefits of magnesium for blood pressure, discuss the best dietary sources of this essential mineral, and help you discover how to effectively include magnesium in your daily routine to promote cardiovascular health.


Understanding the connection between magnesium and blood pressure begins with acknowledging the mineral's role in the cardiovascular system. As an electrolyte, magnesium maintains the electrical activity in our bodies, including our heart's rhythm. Furthermore, it assists in transporting other minerals like calcium and potassium, crucial for good heart health, into cells.

In the context of blood pressure, the importance of magnesium lies in its ability to help the walls of the blood vessels relax. It acts as a natural calcium antagonist, preventing the influx of calcium into the muscle cells of the blood vessels, consequently preventing their constriction. This vasodilatory effect facilitates blood flow, thereby regulating blood pressure.

However, while the biological role of magnesium provides a theoretical basis for its utility in blood pressure control, practical applications must be based on scientific evidence. A 2012 review published in the European Journal of Clinical Nutrition established a strong inverse relationship between magnesium intake and the risk of hypertension. Several other studies have echoed these findings, establishing magnesium as a natural solution for blood pressure optimisation.


Magnesium: The Essential Mineral for Blood Pressure Regulation

Magnesium is an essential mineral that plays a vital role in maintaining overall health. One of its critical functions is the regulation of blood pressure. Research has demonstrated that magnesium can help reduce high blood pressure, particularly when it is incorporated into a balanced diet and healthy lifestyle.


The Science Behind Magnesium and Blood Pressure

In considering the role of magnesium for optimising blood pressure, it's important to first understand how blood pressure works. Essentially, blood pressure is the force exerted by the blood against the walls of the blood vessels as it circulates around the body. Hypertension, or high blood pressure, arises when this force is consistently too high.

In this context, magnesium exerts its blood pressure-lowering effects by aiding the relaxation and dilation of blood vessels, as mentioned earlier. But its role extends beyond this. The mineral also positively influences various physiological processes that indirectly help maintain healthy blood pressure levels, such as facilitating nerve and muscle function, regulating heart rhythm, and managing the balance of other essential minerals in the body.

Of particular relevance is the magnesium-potassium interplay. Potassium helps regulate the balance of fluids in the body, which is fundamental to blood pressure regulation. As magnesium aids in potassium absorption, it indirectly supports fluid balance and consequently blood pressure management.

 Despite this established connection between magnesium and blood pressure, there is an important consideration – the body does not naturally produce magnesium. Therefore, maintaining optimal magnesium levels and, by extension, blood pressure, depends heavily on dietary intake and, in some cases, supplementation.

Several studies have shown a strong correlation between magnesium intake and blood pressure regulation. Magnesium acts as a natural calcium channel blocker, preventing calcium from entering the smooth muscle cells of blood vessels, ultimately causing them to relax. This relaxation helps to improve blood flow, reduce stress on the heart, and lower blood pressure.

Furthermore, magnesium has been found to support the production of nitric oxide, a molecule that helps to dilate blood vessels and improve circulation. By enhancing the availability of nitric oxide, magnesium can further contribute to blood pressure regulation.


How Magnesium Supports Healthy Blood Pressure Levels

 Magnesium's support for healthy blood pressure levels is multifaceted, considering its role in several physiological processes. As we delve deeper into these benefits, it's essential to bear in mind that while magnesium can support blood pressure optimization, it does not replace medical treatments for hypertension, but rather complements them.

The primary benefit of magnesium in relation to blood pressure is its vasodilatory effect. By helping blood vessels relax and dilate, it improves blood flow, thereby easing the pressure on arterial walls. This can support a healthy cardiovascular system and potentially decrease the risk of hypertension.

Moreover, magnesium's role in balancing other minerals essential for heart health, like potassium and calcium, contributes to its blood pressure-lowering effect. Particularly, by counteracting the vascular constriction caused by calcium, magnesium can prevent abnormal increases in blood pressure.

Magnesium also plays a role in stress reduction, with studies suggesting that magnesium deficiency can contribute to stress and anxiety, which are known triggers for hypertension. By supporting healthy stress responses, magnesium can indirectly contribute to blood pressure regulation.

Finally, a significant benefit of magnesium is its potential preventive effect. Regular intake of magnesium, through diet or supplements, can help maintain healthy blood pressure levels and potentially prevent the onset of hypertension. However, more research is needed to fully understand this preventive potential.


Optimal Magnesium Intake for Blood Pressure Management

To reap the benefits of magnesium for blood pressure, it's crucial to consume the recommended daily allowance (RDA) for this essential mineral. The RDA for magnesium varies depending on age and gender:

  • Adult men: 400-420 mg per day
  • Adult women: 310-320 mg per day

Meeting the RDA for magnesium is important, but it's also crucial to maintain a healthy balance between magnesium and other minerals, such as calcium, potassium, and sodium. Note that we don't exactly agree with the RDA as the optimal amount of magnesium to consume each day, rather this is just enough not to get sick or deficient. Check out our calculator for a better idea on optimal amounts.


The Best Dietary Sources of Magnesium

Incorporating magnesium-rich foods into your daily meals is an effective way to boost your magnesium intake and promote healthy blood pressure. Some of the best dietary sources of magnesium include:

  • Leafy green vegetables: spinach, kale, and Swiss chard
  • Nuts and seeds: almonds, cashews, and pumpkin seeds
  • Whole grains: brown rice, quinoa, and whole wheat bread
  • Legumes: black beans, chickpeas, and lentils
  • Fish: salmon, mackerel, and halibut
  • Avocados
  • Bananas
  • Dark chocolate

Shifting focus to dietary sources of magnesium provides a more holistic view of maintaining healthy blood pressure levels. As part of a balanced diet, magnesium-rich foods not only supply this essential mineral but also provide a host of other nutrients, contributing to overall health and wellbeing.

Green leafy vegetables such as spinach and kale, whole grains like brown rice and quinoa, and nuts and seeds (almonds, sunflower seeds) are excellent sources of magnesium. Other sources include legumes like lentils and chickpeas, avocados, bananas, and even dark chocolate.

Integrating these foods into your diet can significantly improve your magnesium intake, thus supporting blood vessel health and promoting healthy blood pressure levels. In addition, these foods are often high in dietary fiber, which can further support heart health by helping to reduce blood cholesterol levels. However, it's important to remember that while diet plays a crucial role, it's only one piece of the puzzle. Regular exercise, stress management, and medical treatments (when needed) are also key in maintaining healthy blood pressure.


Magnesium Supplements: A Complementary Approach to Blood Pressure Management

    While it's always best to obtain nutrients from whole food sources, magnesium supplements can be a helpful addition to your blood pressure management strategy, especially if you struggle to meet the RDA through diet alone. There are several types of magnesium supplements available, such as magnesium citrate, magnesium glycinate, and magnesium oxide. Consult with a healthcare professional before starting any supplement regimen, as they can help you determine the appropriate dosage and form of magnesium for your individual needs.


    Additional Lifestyle Factors for Optimal Blood Pressure Control

    In addition to increasing your magnesium intake, there are other lifestyle changes that can help support blood pressure management. These include:

    • Engaging in regular physical activity: Aim for at least 150 minutes of moderate-intensity aerobic exercise or 75 minutes of vigorous-intensity aerobic exercise per week.
    • Managing stress: Incorporate stress-reduction techniques, 

      such as meditation, yoga, or deep breathing exercises, into your daily routine to help keep your blood pressure in check.

      • Maintaining a healthy weight: Excess weight can put added strain on your heart and blood vessels, so strive for a healthy weight through a balanced diet and regular exercise.
      • Limiting alcohol consumption: Excessive alcohol intake can raise blood pressure, so aim to consume alcohol in moderation or avoid it altogether.
      • Quitting smoking: Smoking is a major risk factor for cardiovascular disease and can contribute to high blood pressure. Quitting smoking can significantly improve your heart health and blood pressure.


      Magnesium Blood Pressure Studies

      Over the years, numerous scientific studies have investigated the relationship between magnesium and blood pressure, with promising results. For instance, a meta-analysis of 34 clinical trials involving over 2,000 participants found that magnesium supplementation led to small but significant reductions in both systolic and diastolic blood pressure.

      Another study published in Hypertension revealed that people who took 300mg of magnesium supplements daily for one month showed improved blood pressure levels. However, it's crucial to note that the participants in this study were magnesium-deficient at the outset, underscoring the need to treat magnesium deficiency as a potential factor in hypertension.

      Despite these promising findings, it's essential to maintain a balanced perspective. While research shows that magnesium can have a positive effect on blood pressure, it should not be viewed as a standalone solution for hypertension. Maintaining healthy blood pressure requires a multifaceted approach, encompassing a balanced diet, regular exercise, stress management, and medical treatment when necessary.

      There has been plenty of research into magnesium and blood pressure, with data does showing a general reduction of both systolic and diastolic blood pressure in test patients. Tests have been carried out on groups of people of varying ages and lower blood pressure has been noted across all age groups, especially those taking a higher dosage of magnesium. There is therefore general evidence that magnesium supplements do support lower blood pressure. Because Magnesium helps with anxiety and aids sleep this may well be a contributory factor.

      Studies and tests have fully concluded that having a higher level of magnesium in a person’s daily diet and consuming magnesium through foods and supplements is very much key to reducing or at least maintaining a lower blood pressure. Magnesium, therefore should not be considered a blood pressure lowering medication on its own but part of the solution as it aids the lowering of blood pressure. Furthermore, when used as a supplement it can bring many other significant health benefits.


      Magnesium plays a crucial role in regulating blood pressure and supporting overall cardiovascular health. By incorporating magnesium-rich foods into your diet, considering magnesium supplements as needed, and making lifestyle changes to support blood pressure management, you can unlock the secrets to better cardiovascular health.

      Remember, it's essential to consult with a healthcare professional before starting any supplement regimen or making significant changes to your diet or lifestyle. By working together with a healthcare provider, you can create a personalized plan to effectively manage your blood pressure and improve your overall well-being.



      1. Regulation: Magnesium helps regulate blood pressure by relaxing blood vessels, allowing for easier blood flow and reducing the risk of hypertension.

      2. Vasodilation: Magnesium acts as a natural calcium channel blocker, helping to widen blood vessels and lower blood pressure.

      3. Electrolyte balance: Magnesium is a key electrolyte that works alongside potassium and sodium to maintain proper fluid balance, which is crucial for blood pressure regulation.

      4. Hormone control: Magnesium is involved in the production of hormones that help regulate blood pressure, such as aldosterone and angiotensin II.

      5. Stress reduction: Magnesium can have a calming effect on the body, reducing stress and anxiety, which are known to contribute to high blood pressure.

      6. Nerve function: Magnesium plays a role in nerve function, helping to transmit nerve signals that control blood vessel constriction and dilation, thereby affecting blood pressure levels.

      7. Heart rhythm: Magnesium is essential for maintaining a normal heart rhythm, which can directly impact blood pressure.

      8. Inflammation: Magnesium has anti-inflammatory properties, which can help reduce inflammation in the blood vessels and improve blood pressure levels.

      9. Prevention: Maintaining adequate magnesium levels may help prevent the development of hypertension, reducing the risk of heart disease and stroke.

      10. Treatment: Magnesium supplements have been shown to be effective in lowering blood pressure in some people, especially those with magnesium deficiency or hypertension.

      Magnesium Information

      For everything you need to know about magnesium and magnesium supplements, check out our comprehensive information page here.

      Magnesium Information


      We’ve created a magnesium supplement with a combination of three types of highly absorbable magnesium at a therapeutic dose. Our magnesium comes as an easy to mix, great tasting powder to ensure optimal absorption. To learn more about our magnesium, check out the product page here.

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      Ron Goedeke MD, BSc Hons MBChB, FNZCAM

      Dr. Ron Goedeke, an expert in the domain of functional medicine, dedicates his practice to uncovering the root causes of health issues by focusing on nutrition and supplement-based healing and health optimisation strategies. An esteemed founding member of the New Zealand College of Appearance Medicine, Dr. Goedeke's professional journey has always been aligned with cutting-edge health concepts.

      Having been actively involved with the American Academy of Anti-Aging Medicine since 1999, he brings over two decades of knowledge and experience in the field of anti-aging medicine, making him an eminent figure in this evolving realm of healthcare. Throughout his career, Dr. Goedeke has been steadfast in his commitment to leverage appropriate nutritional guidance and supplementation to encourage optimal health.

      This has allowed him to ascend as one of the most trusted authorities in the arena of nutritional medicine in New Zealand. His expertise in the intricate relationship between diet, nutritional supplements, and overall health forms the backbone of his treatment approach, allowing patients to benefit from a balanced and sustainable pathway to improved wellbeing.

      1. "Magnesium and Blood Pressure: A Review of the Epidemiologic, Clinical, and Mechanistic Evidence":

      2. "The Role of Magnesium in Hypertension and Cardiovascular Disease":

      3. "Magnesium and Hypertension":

      Disclaimer: The information provided is for educational purposes only and does not constitute medical advice. Always seek the advice of your physician or qualified healthcare provider with any questions or concerns about your health. Never disregard or delay seeking medical advice because of something you have heard or read on this website.

      Last updated on the 17th of April 2023

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