One of the most commonly prescribed supplements by physios is Magnesium. In this post we examine: What is it good for, why you need a practitioner grade product and how to know you may be deficient. Magnesium is an important macromineral, which plays a role in over 300 enzymatic reactions- including the metabolism of vitamin D. Studies have shown beneficial effects on anxiety and stress, as well as positive relationships with physical function in older adults (along with zinc, selenium and iron). Low magnesium intake is associated in epidemiological studies with high blood pressure, osteoporosis and type 2 diabetes. Magnesium levels are