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The Link Between Magnesium Deficiency And Osteoporosis

As per Dr. Carolyn Dean, MD, ND, magnesium expert and Medical Director of the non-profit Nutritional Magnesium Association, the benefits that can be had from taking calcium (through diet or supplements) to improve and maintain good bone health can be impaired without a corresponding adequate intake of magnesium. In short, there is a fascinating link between magnesium deficiency and osteoporosis

As per her, a 1:1 ratio for calcium-magnesium is necessary to reap the benefits of calcium intake for bone health. It is believed that magnesium keeps the calcium dissolved in the blood which without the former (magnesium) would calcify leaving deposits in the kidney causing stones or even calcification of cardiovascular arteries and bone joints. (1)

Dr. Dean clearly outlined the magnesium-Vitamin D-calcium relationship that is so important for optimal absorption and metabolism of calcium. She was quoted as saying, “Magnesium is a vital nutrient that works synergistically with both calcium and vitamin D. Adequate levels of magnesium in the body are essential for the absorption and metabolism not only of vitamin D but of calcium, because magnesium converts vitamin D into its active form so that it can help calcium absorption. Magnesium also stimulates a particular hormone, calcitonin, which helps to preserve bone structure and draws calcium out of the blood and soft tissues back into the bones, impacting the possibility of osteoporosis, some forms of arthritis and kidney stones.” (2)

Common reasons cited for the lack of magnesium in our diets have been:

  • Modern farming practices
  • Food processing procedures
  • Increased consumption of soda/ soft drink which leach vital minerals out of the body

In as recent as April 2011, a study was published in the journal Biological Trace Element Research, after studying 484 young healthy women with the objective of observing if improving dietary intake of magnesium may positively impact bone quality in this population. It spoke of the findings a positive relation between magnesium intake in healthy young adults and its relation to good bone quality. (3)


  1. Magnesium Deficiency Linked to Higher Risk of Osteoporosis, Says Doctor, PR Newswire, United Business Media.
  2. Mg Nutritional Magnesium Association.
  3. Kim, M. H., Yeon, J. Y., Choi, M. K., and Bae, Y. J., Evaluation of magnesium intake and its relation with bone quality in healthy young Korean women, Biological Trace Element Research, April 5, 2011.


Author: Monica Straith, BS

Monica is the PR and Outreach Manager and Fitness Lead at AlgaeCal. She’s an ACE Certified Personal Trainer and Nutrition Specialist, and has a B.S. and B.A. from the University of Wisconsin-Madison, where she played varsity soccer for four years. Monica pulls from her experience in athletics and health to contribute to AlgaeCal and has also been featured on myfitnesspal blog, Prevention, and Huffington Post.