Magnesium is important to the functioning of your body. According to the National Institutes of Health’s Office of Dietary Supplements, this mineral plays a role in more than 300 of your body’s biochemical reactions. For example, it helps regulate blood pressure and your heartbeat. It also helps maintain bone strength. Having too little magnesium in your body can negatively affect all of these functions.
Magnesium measured in the red blood cells (RBC) is the most precise way to assess the status of intercellular magnesium.