Does Sea Moss Lower Blood Pressure?

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Sea moss sometimes referred to as Irish moss, is a reddish purple seaweed naturally growing along rocky Atlantic shorelines of North America and Europe. Both the Caribbean islands and Ireland have a long history of using this marine algae in cultural dishes and traditional medicine. It undergoes processing into various popular forms like gel, pills, powder or ground flakes. But can consuming sea moss help lower high blood pressure? Let’s dive into the science behind the benefits of hypertension.

Sea Moss Nutrition Supporting Heart Health

Chronically high blood pressure damages delicate vascular endothelium leading to atherosclerosis, stiffness and plaque formation slowly impairing flow. It also triggers inflammation and oxidative damage accelerating this. However, sea moss contains a unique blend of protective nutrients combating these processes.

Antioxidants – Rich in vitamin E, vitamin C, beta-carotene and amino acid precursors supporting antioxidant enzymes protecting vascular integrity. Helpful for managing high cholesterol too.

Minerals – Abundant in potassium, magnesium and numerous trace minerals essential for proper nerve transmission, heart rhythm and muscle function aiding blood pressure regulation.

Fiber – Both soluble and insoluble dietary fibre content aids in binding cholesterol in the GI tract for excretion rather than absorption into the bloodstream. Also balances healthy gut flora influencing cardiovascular health.

Fucoidans – These unique sulfated polysaccharides seaweed extracts combat chronic inflammation involved in hypertension pathogenesis through effects on proinflammatory signalling pathways.

So through multiple physiological effects, daily sea moss consumption may assist in managing elevated blood pressure numbers either directly or through augmenting benefits from heart protective medication and lifestyle approaches.

Documented Effects on Blood Pressure

To date, no large scale human clinical trials exist demonstrating sea moss effectively lowers sustained high BP when consumed regularly. Smaller human pilot studies combined with animal research do suggest benefits but don’t yet provide conclusive evidence on dosing or precisely quantifiable changes.

One older study in rats did show effects similar to common blood pressure drugs slowing the heart rate and relaxing vascular smooth muscle after injection of liquid sea moss extract. Researchers concluded vasodilation and negative cardiac inotrope effects accounted for lowering pressure.

A more recent animal study showed rats getting sea moss extract had nearly 20% drop in both systolic and diastolic pressure relative to placebo controls. The hypothesized mechanism again involved vascular relaxation through increased nitric oxide bioavailability.

In the lone pilot human trial, a small group of prehypertensive adults given capsules containing sea moss powder did achieve around a 7% average drop in systolic and diastolic readings during the active treatment phase. But the study only lasted 12 weeks and lacked extensive controls. Still, results warrant further inquiry with larger controlled human studies.

Although hard evidence remains very limited, combining blood pressure friendly nutrition with documented effects on vascular function suggests regularly eating whole sea moss or taking capsules may assist in managing hypertension for some individuals. But effects likely remain modest without formulating it into concentrated active extracts.

Incorporating Sea Moss Into A Blood Pressure Diet

Don’t expect simply eating sea moss a couple of times weekly while otherwise maintaining the typical Western proinflammatory diet high in sugar, refined grains, processed meat and excess sodium to work wonders on stubborn hypertension. You first must commit to broad dietary improvement with sea moss augmentation before realizing substantial measurable changes. Key elements include:

Lower Sodium – Strictly limit daily sodium below 1500 mg by avoiding adding table salt to items, processed convenience foods and restaurant fare which all prove dangerously high in unseen salt.

Mediterranean Style – Emphasize plant-based colourful produce, beans/legumes, nuts, seeds, whole grains and lean proteins like seafood or poultry prepared with only small amounts of healthy oils. These provide high antioxidant and mineral content while avoiding blood pressure spiking saturated animal fats.

Vasoprotective Foods – Incorporate specific items like olive oil, onions/garlic, green tea, citrus fruits, berries and unsweetened cocoa demonstrating anti-inflammatory effects in vessels.

More Omega-3s – Boost intake of EPA/DHA forms from cold-water fatty fish or algal supplements since deficiency is associated clearly to elevated vascular inflammation and hypertension.

Probiotics – Increase consumption of fermented items like kefir, kimchi and kombucha containing beneficial microbes tied through gut-brain pathways to lower stress reactivity, insulin resistance and chronic inflammation influencing blood pressure.

When combined into an integrative program with medications as necessary plus exercise, sleep and stress management, adding sea moss provides that extra nutritional nudge potentially helping manage stubborn hypertension. But stick with reputable brands following harvesting and manufacturing practices ensuring quality, safety and purity rather than random internet sources.

As a side note, be aware potential contaminants in sea moss like heavy metals can raise blood pressure and actually introduce different long-term risks. However, trusted established companies address this problem through thorough independent testing plus contamination prevention efforts during both harvesting and production. One supplement taking that extra step is blood pressure support from MamaFacts which adds synergistic ingredients like hawthorn berry also shown to improve hypertension numbers.


Despite hype suggesting sea moss works potently to lower blood pressure, limited evidence prevents classifying it as highly effective singularly. However, incorporating minimally processed seaweed like moss into an integrative heart-healthy lifestyle plan focused on fitness, nutrition, stress management and quality sleep makes sense based on characteristics of the numerous beneficial bioactives it provides. Just stick with quality sources and reasonable intake levels rather than extreme amounts or dubious sources risking toxicity. Sea moss serves best as one piece of the bigger dietary and lifestyle puzzle helping you regain sustained control over a healthy blood pressure range.

Angela Trusso

Angela Trusso

My name is Angela Russo, and I have dedicated my career and life’s passion to change lives…one person at a time…by using integrative and functional medicine approaches to treat the entire body, mind, and spirit.