Magnesium is a key mineral for proper metabolic function. Magnesium depletion has been found in people with persistent illnesses. Magnesia, arrhythmia, severe asthma, and migraine have all been shown to be effective in eclampsia, severe asthma, and migraine. Other areas that have produced promising results include lowering the risk of metabolic syndrome, increasing glucose and insulin metabolism, relieving dysmenorrhea symptoms, and easing leg cramps in pregnant women. Despite limited evidence, magnesium for constipation and dyspepsia is still used as standard care. Although magnesium is safe in selected patients in appropriate dosages, it can also cause adverse effects.