This article was previously published April 1, 2019, and has been updated with new information.
By Dr. Joseph Mercola
Magnesium is the fourth most abundant element in your body,1 and one of the seven essential minerals we can’t live without.2 It’s necessary for the healthy functioning of most cells, but especially your heart, kidneys and muscles. Low levels of magnesium impede cellular metabolic function and deteriorate mitochondrial function.
As it is also required for the activation of vitamin D, deficiency may hamper your ability to convert vitamin D from sun exposure and/or oral supplementation. Unfortunately, deficiency is common and research shows even subclinical deficiencies may jeopardize your health.