Magnesium oxide is an essential nutrient that ensures the regulation of several physiological processes. It improves muscle and nerve function, blood pressure, and blood sugar. The mineral also interferes with the production of DNA, protein, and bone tissue. Every day, the body requires large amounts of magnesium, granting it the name of a macro-mineral. Magnesium is indispensable for muscle contraction and physical performance. Magnesium oxide promotes the control of blood sugar in diabetic patients. Magnesium oxide is crucial for mood regulation and other cognitive activities.