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Gut Bacteria And Blood Pressure – Can Your Gut Health Affect Blood Pressure?


High blood pressure continues to be a growing health epidemic, affecting over one billion people globally. Also known as hypertension, high blood pressure damages arteries and contributes to heart disease, strokes, kidney disease, and premature death when left uncontrolled. 

In this article, we’ll examine how your gut health relates to blood pressure control and discuss foods, supplements, and lifestyle changes that support a healthy gut microbiome and lower hypertension risk.

The Gut Microbiome And Blood Pressure Connection

While genetics plays a role, lifestyle factors like diet, exercise, and stress strongly influence your risk for hypertension. Emerging research now demonstrates the gut microbiome significantly impacts blood pressure as well.

Optimizing the delicate community of microorganisms in your digestive system may be key for controlling and reducing blood pressure.

Gut Microbiome And Blood Pressure

Your gut microbiome refers to the trillions of bacteria and other microbes that inhabit your digestive system. This intricate community of microorganisms maintains a symbiotic relationship with your body.

➜ When in balance, the gut microbiota provides crucial health benefits. When dysbiosis or imbalance occurs, it can trigger widespread effects on health.

➜ In recent years, scientists have uncovered the major role gut flora plays in regulating blood pressure through diverse mechanisms including:

➜ Metabolizing dietary nutrients from food into molecules that influence blood pressure such as short-chain fatty acids.

➜ Directing the production of hormones within the gut that control blood pressure like dopamine and angiotensin. 

➜ Regulating inflammation levels throughout the body which affects arteries and fluid balance.

➜ Interacting with gut immune cells which communicate with the brain to control nervous system regulation of blood pressure.

➜ Impacting how much salt is absorbed in the intestines and retained in the body. 

➜ Determining levels of key neurotransmitters like serotonin that influence blood pressure.

When gut microbiome balance is disrupted, these mechanisms are impaired, raising the risk for hypertension.

Correcting dysbiosis and nurturing microbial diversity promotes optimal functioning to control blood pressure levels.

Gut Dysbiosis Links With High Blood Pressure

Numerous studies have uncovered connections between gut dysbiosis and hypertension:

✦ People with high blood pressure show less microbial diversity with a dominance of certain Firmicutes bacteria strains.

✦ Increased gut permeability, endotoxemia, and circulating bacterial lipopolysaccharides from dysbiosis trigger vessel inflammation associated with hypertension. 

✦ Disordered gut flora reduces the production of short-chain fatty acids needed for blood pressure regulation.

✦ Beneficial gut Lactobacillus species are depleted in those with high blood pressure.

✦ Antibiotics disturb healthy gut flora balance, often increasing vascular tone and blood pressure.

✦ Germ-free mice exhibit significantly lower baseline blood pressure without any gut microbes present compared to normal mice.

Optimizing the gut ecosystem appears pivotal for maintaining ideal blood pressure. Promoting microbial diversity and abundance of beneficial species helps control hypertension.

Blood Pressure-Lowering Effects Of Probiotics  

Probiotics are beneficial strains of live bacteria and yeasts that provide health benefits when consumed. Here are some of the favorable effects probiotics have shown on blood pressure:

➜ Reduced inflammation, oxidative stress, and insulin resistance which contribute to high blood pressure. 

➜ Decreased angiotensin levels to relax blood vessels.

➜ Increased nitric oxide production which widens arteries and improves flow.

➜ Reduced plasma aldosterone levels to lower fluid retention.

➜ Enhanced synthesis of vasodilatory short-chain fatty acids.

➜ Lowered blood pressure in people with hypertension based on meta-analyses of clinical studies.

➜ 2-7 point improvements in systolic and diastolic blood pressure measurements.

Specific strains like Lactobacillus casei, Lactobacillus plantarum, and L. rhamnosus seem most effective. Consult your doctor about adding a probiotic along with dietary changes.

Best Foods To Improve Gut Microbiome

Focus your diet on an array of prebiotic and probiotic foods:

🔹 Prebiotic foods – Feed beneficial bacteria 

Jerusalem artichokes, dandelion greens, garlic, leeks, onions, apples, asparagus, banana, radicchio, jicama

🔹 Fermented foods – naturally contain probiotics

Kimchi, kombucha, miso, kefir, sauerkraut, tempeh, pickles, yogurt, some cheeses

🔹 Fiber-rich plant foods – Sustain a diverse microbiome

Leafy greens, root vegetables, berries, figs, flaxseed, legumes, beans, nuts, seeds 

🔹 Polyphenol-rich foods – Provide nutrients that support healthy gut flora

Green tea, cocoa, coffee, red wine, blueberries, pomegranates, pecans

Aim for variety, color, and plenty of plant foods over refined carbs and sugar. Minimize the use of antibiotics when possible as these disrupt microbial balance.

Other Lifestyle Strategies For Healthy Blood Pressure

Along with optimizing your gut microbiome, be sure to follow other evidence-based steps:

➜ Maintain a healthy body weight for your height.

➜ Exercise regularly with a mix of cardio and strength training.

➜ Limit sodium, processed foods, sugar, and refined carbs.

➜ Increase magnesium, potassium, calcium, and omega-3 fatty acids.

➜ Drink alcohol, if at all, only in moderation.

➜ Quit smoking and avoid secondhand smoke.

➜ Manage stress through relaxation practices. 

➜ Manage stress through relaxation practices. 

➜ Get 7-9 hours of quality sleep per night.

➜ Check blood pressure regularly and take prescribed medications.

Work closely with your medical providers to incorporate gut-supporting strategies into a holistic hypertension treatment plan.

Supplements That Benefit The Gut Microbiome

In addition to probiotics, certain supplements can foster a healthy, diverse gut flora:

◾️ Prebiotic supplements like inulin, fructooligosaccharides, and arabinogalactan provide fuel for beneficial bacteria.

◾️ Digestive enzymes aid proper breakdown of nutrients to feed gut flora. Look for combinations that contain proteases, lipases, and amylases.

◾️ Glutamine helps maintain the intestinal wall barrier and innate immune function in the gut.

◾️ Colostrum is rich in immunoglobulins that support immunity and gut microbial balance.

◾️ Quercetin is a bioflavonoid with antioxidant, anti-inflammatory, and anti-microbial properties that benefit gut microbes.

Always consult your doctor before starting supplements to check for potential medication interactions.


The diverse community of microorganisms in your gut ecosystem influences blood pressure regulation in multiple ways. Imbalanced gut flora is associated with hypertension.

Optimizing your microbiome balance through probiotics, prebiotic fiber, fermented foods, and targeted supplements can support healthy blood pressure levels. Combined with lifestyle measures, a gut-healthy approach provides a holistic strategy to reduce cardiovascular risks.

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Dr. Harold Gojiberry is not just your ordinary General Practitioner; he is a compassionate healthcare provider with a deep commitment to patient well-being and a passion for literature. With extensive medical knowledge and experience, Dr. Gojiberry has made a significant impact in the field of healthcare, particularly in the area of liver diseases and viral hepatitis.

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