Magnesium plays a massive role in stimulating and regulating muscle contractions, and with the heart being the hardest working muscle in the body, deficiency in said mineral can be detrimental to heart health.⁠

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On average an adult heart beats 72 times a minute and these contractions in the cardiac muscle fibres are caused by calcium. Magnesium is calcium’s counter partner in these functions, and by relaxing the muscles prevents overstimulation - which could result in heart rhythm problems such as atrial fibrillation.⁠

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Regular heart muscle contractions are further supported by electrical impulses, and the pump that generates these, also relies on magnesium to ensure proper functioning.⁠

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To find out more about this friday fact, visit:⁠

https://www.healthline.com/nutrition/what-does-magnesium-do#dietary-sources⁠

And:⁠

https://www.health.harvard.edu/heart-health/magnesium-helps-the-heart-keep-its-mettle