Estimated US Intake of Magnesium

  • Magnesium is one of six “macro-minerals”, major minerals needed by the body in larger amounts. The other five major minerals are calcium, sodium, potassium, phosphorous, and chloride.
  • The US RDA for magnesium in adults over age 31 is currently set at 420 mg per day for men, 320 mg per day for women, and 360 mg per day for pregnant women.
  • The average American diet contains barely over 50% of the US RDA of magnesium.
  • Roughly 75% of US adults consume less than the recommended daily allowance (RDA) of magnesium.
  • 19% of US adults—one in 5—consume less than half of the RDA of magnesium.
  • 50% of cases of magnesium deficiency may go unrecognized due to statistical errors in serum magnesium testing.
  • 7-11% of hospitalized patients and 65% of intensive care patients are deficient in magnesium.
  • Only about 20-50% of magnesium intake is actually absorbed by the body.
  • Over three dozen prescription medications interfere with magnesium absorption and retention in the body, including some antibiotics, diuretics, allergy and asthma medications, and chemotherapy treatments.
  • Absorption of magnesium supplements varies. Magnesium oxide, the most common form of magnesium supplement found in drug stores, has been found to have only a 4% absorption rate. Other forms of magnesium supplements, however, including magnesium chloride, have been found to have much higher rates of absorption due to their higher solubility in water.
  • From Essential Minerals: Our Magnesium Chloride crystals are sourced directly from the ancient and pristine Poltava seabed, Mined from a depth of over 2500 meters. This pure and ancient seabed is home to the world’s purest form of Magnesium Chloride.   Symptoms linked to Magnesium Deficiency may include:
    • PMS and Hormonal Imbalances
    • Inability to Sleep
    • Anxiousness
    • Irritability
    • Muscle Tension, Spasms, and Cramps
    • Fatigue
    • Low Energy
    • Kidney Stones
    • Restless legs, twitches, or tics
    • Nervousness
    • Diabetes
    • Headaches
    • Kidney stones, gout
    • Abnormal Heart Rhythm
    • Food and alcohol cravings
    • Weakening of the Bones
    • Weakness
    • Cramps (muscle or stomach)
    • Depression
    • Heart disease, angina, stroke
    • Prostate, and urinary problems


  1. Ash, R. The Top 10 of Everything 2006: The Ultimate Book of Lists.DK Publishing; 2005. Available at: Accessed November 4, 2009.
  2. Railsback, LB. Some Fundamentals of Mineralogy and Geochemistry.Department of Geology, University of Georgia. Available at: November 4, 2009.
  3. Froes FH, Eliezer D, Aghion E. The science, technology, and applications of magnesium. Journal of the Minerals, Metals, and Materials Society. 1998;50(9): 30-34. Available at: Accessed March 2, 2010.
  4. Durlach J. Overview of Magnesium Research: History and Current Trends. In: International Magnesium Symposium. New Perspectives in Magnesium Research. London: Springer-Verlag; 2007:3-11.
  5. Dean C. The Magnesium Miracle. New York: Ballantine Books; 2007.
  6. Arnaud M. Update on the assessment of magnesium status. The British Journal Of Nutrition. June 2008;99 Suppl 3:S24-S36. Available from: MEDLINE with Full Text, Ipswich, MA. Accessed February 3, 2010.
  7. Gaby A. Magnesium: How an important mineral helps prevent heart attacks and relieve stress.New Canaan, CT: Keats Publishing; 1994.
  8. World Health Organization. Calcium and Magnesium in Drinking Water: Public health significance.Geneva: World Health Organization Press; 2009.
  9. Bohn T. Dietary Factors Influencing Magnesium Absorption in Humans. Current Nutrition & Food Science.2008;4:53-72.
  10. Institute of Medicine. Dietary Reference Intakes for Calcium, Phosphorous, Magnesium, Vitamin D, and Fluoride.Washington, DC: National Academy Press; 1997.
  11. Altura BM, Altura BT. Magnesium: Forgotten Mineral in Cardiovascular Biology and Thermogenesis. In: International Magnesium Symposium. New Perspectives in Magnesium Research. London: Springer-Verlag;2007:239-260.
  12. Pao EM, Mickle SJ. Problem nutrients in the United States. Food Technology. 1981:35:58-79.
  13. King DE, Mainous AG 3 rd, Geesey ME, Woolson RF. Dietary magnesium and C-reactive protein levels. Journal Of The American College Of Nutrition. 2005 Jun;24(3):166-71. Available from: MEDLINE with Full Text, Ipswich, MA. Accessed November 6, 2009.
  14. Liebscher DH, Liebscher DE. About the Misdiagnosis of Magnesium Deficiency. Journal of the American College of Nutrition. 2004;23(6):730S-731S.
  15. Bernstein, L. Improving Magnesium Absorption and Bioavailability. Geriatric Times. 2002;3(1). Available at: Accessed February 10, 2010.
  16. Gullestad L, Oystein Dolva L, Birkeland K. Oral versus intravenous magnesium supplementation in patients with magnesium deficiency. Magnesium and Trace Elements.1991-1992; 10(1):11-16.
  17. Klein M. Magnesium therapy in cardiovascular disease. Cardiovascular Reviews & Reports. 1994;15(10):9-56.
  18. McCarthy J, Kumar R. Divalent Cation Metabolism: Magnesium. In: Schrier R, series editor. Atlas of Diseases of the Kidney.Volume 1. Wiley-Blackwell; 1999: 4.1-4.12.
  19. Magnesium Mineral. The Nutrition Notebook. 2004. Available at: Accessed January 21, 2010.
  20. Seelig M, Rosanoff A. The Magnesium Factor. New York: Avery; 2003.
  21. Firoz M, Graber M. Bioavailability of US commercial magnesium preparations. Magnesium Research.2001; 14: 257-62.
  22. Rude RK, Gruber HE. Magnesium deficiency and osteoporosis: animal and human observations. The Journal of Nutritional Biochemistry.2004; 15: 710-6.
  23. Schaafsma A, de Vries PJ, Saris WH. Delay of natural bone loss by higher intakes of specific minerals and vitamins. Critical Reviews in Food Science and Nutrition.2001; 41: 225-49.
  24. Sales CH, Pedrosa Lde F. Magnesium and diabetes mellitus: their relation. Clinical Nutrition.2006; 25: 554-62.
  25. Murakami K, Okubo H, Sasaki S. Effect of dietary factors on the incidence of type 2 diabetes: a systematic review of cohort studies. Journal of nutritional science and baraminology.(Tokyo) 2005; 51: 292-310.
  26. Guerrero-Romero F, Rodriguez-Moran M. Hypomagnesemia, oxidative stress, inflammation, and metabolic syndrome. Diabetes/metabolism research and reviews.2006; 22: 471-6.
  27. He K, Liu K, Daviglus ML, et al. Magnesium intake and incidence of metabolic syndrome among young adults.Circulation. 2006; 113:1675-82.
  28. Al-Delaimy WK, Rimm EB, Willett WC, Stampfer MJ, Hu FB. Magnesium intake and risk of coronary heart disease among men. Journal of the American College of Nutrition.2004; 23: 63-70.
  29. Ueshima K. Magnesium and ischemic heart disease: a review of epidemiological, experimental, and clinical evidence. Magnesium Research.2005; 18: 275-84.
  30. Monarca S, Donato F, Zerbini I, Calderon RL, Craun GF. Review of epidemiological studies on drinking water hardness and cardiovascular diseases. European journal of cardiovascular prevention and rehabilitation.2006;13:495-506.
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