Magnesium, the body’s fourth most abundant mineral, is responsible for over 300 biochemical reactions, including the regulation of calcium, potassium, and sodium levels. Dr. Norman Shealy says that every common disease is related to magnesium deficiency, and that it is the missing cure for several disorders. Vitamin C improves the immune system and calcium strengthens bones, but if you don’t know how important getting enough magnesium is to your health, you may be missing out on some vital health information. Better Living uses affiliate links. We may receive a small commission at no cost to you if you make e-commerce.