Latest Trustworthy News from Dr. Mercola - delivered straight to your inbox!

Weekly Health Quiz: Exercise, Blueberries and Magnesium


This is an older article that may not reflect Dr. Mercola’s current view on this topic. Use our search engine to find Dr. Mercola’s latest position on any health topic.

1 What is the most effective way to determine whether you might have a magnesium deficiency?

  • Evaluate and track your signs of symptoms of magnesium deficiency
  • Check your serum level of magnesium
  • Take magnesium citrate to tolerance (until you get slightly loose bowels). If your dosage is above the RDA, you have an insufficient level of magnesium
  • Check your RBC magnesium level

    Magnesium deficiency is extremely common, and even subclinical deficiency can jeopardize your cardiovascular health. Your best bet is to have an RBC magnesium test done, which measures the amount of magnesium in your red blood cells. Learn more.


By continuing to browse our site you agree to our use of cookies, revised Privacy Policy and Terms of Service.