"This book is incredibly complete and easy-to-understand for anybody. I certainly recommend it for patients who want to know more about atrial fibrillation than what they will learn from doctors...."

Pierre Jaïs, M.D. Professor of Cardiology, Haut-Lévêque Hospital, Bordeaux, France

"Dear Steve, I saw a patient this morning with your book [in hand] and highlights throughout. She loves it and finds it very useful to help her in dealing with atrial fibrillation."

Dr. Wilber Su Cavanaugh Heart Center, Phoenix, AZ

"Your book [Beat Your A-Fib] is the quintessential most important guide not only for the individual experiencing atrial fibrillation and his family, but also for primary physicians, and cardiologists."

Jane-Alexandra Krehbiel, nurse, blogger and author "Rational Preparedness: A Primer to Preparedness"


"Steve Ryan's summaries of the Boston A-Fib Symposium are terrific. Steve has the ability to synthesize and communicate accurately in clear and simple terms the essence of complex subjects. This is an exceptional skill and a great service to patients with atrial fibrillation."

Dr. Jeremy Ruskin of Mass. General Hospital and Harvard Medical School

"I love your [A-fib.com] website, Patti and Steve! An excellent resource for anybody seeking credible science on atrial fibrillation plus compelling real-life stories from others living with A-Fib. Congratulations…"

Carolyn Thomas, blogger and heart attack survivor; MyHeartSisters.org

"Steve, your website was so helpful. Thank you! After two ablations I am now A-fib free. You are a great help to a lot of people, keep up the good work."

Terry Traver, former A-Fib patient

"If you want to do some research on AF go to A-Fib.com by Steve Ryan, this site was a big help to me, and helped me be free of AF."

Roy Salmon Patient, A-Fib Free; pacemakerclub.com, Sept. 2013

Low Serum Magnesium Linked with Atrial Fibrillation

Magnesium for Atrial Fibrllation patientsBy Lynn Haye

Important new findings from the Framingham Offspring Study link low levels of serum magnesium with an increased risk of developing A-Fib.

Coincidentally, they did not find a link between two other electrolytes, serum potassium or serum calcium, and A-Fib.

A variety of sources suggest that many people do not get the RDA for magnesium which is 420/mg day for males and 320/mg day for females.

The study authors note that this link, “….. has important public-health implications because the prevalence of A-Fib is increasing, and magnesium deficiency is common and potentially modifiable.”

Distinction Between Serum and Intracellular Magnesium Levels

Other investigations have also suggested that low magnesium levels play a role in heart arrhythmias, although there has been a distinction between serum and intracellular magnesium levels. If the link between low levels of serum magnesium and A-Fib proves to be correct, further research could determine the potential role for magnesium supplementation as an A-Fib preventive.

In fact, many A-Fib patients already take magnesium supplements as a way to ensure that they maintain adequate magnesium levels.

This new analysis of the Framingham Offspring Study followed 3,530 subjects over 20 years. The subject’s age and sex were accounted for and did not affect the findings. The results found that subjects in the lowest quartile of magnesium levels had a significantly higher risk of developing A-Fib than those in the highest quartile of magnesium levels.

The investigators advocate further research to confirm their findings and to explore the potential for magnesium supplementation as an aid in lowering A-Fib risk.

What This Means to You

Steve Ryan discusses Serum and Intracellular Magnesium Levels in his book, Beat Your A-Fib. There’s a big difference between the two. You could be deficient in Mg and your serum blood test looks fine.

In addition, may doctors are not conversant or comfortable advising patients about mineral supplements. So, once again, YOU must be your own best patient advocate. If you have A-Fib, find out more about Magnesium. Steve recommends two good books on his Recommended Books for A-Fib Patients Listmania on Amazon,com.

(BTW: if you use the A-Fib.com portal link to purchase at Amazon.com, A-Fib.com receives a small commission that’s applied to the maintenance costs of this site.)

Author, Lynn Haye, PhD

LYNN HAYE, Ph.D.  is a clinical psychologist and former A-Fib patient. She studies and writes about current trends in the treatment and diagnosis of atrial fibrillation and has a special interest in women’s health issues. Dr. Haye and her family live in Orange County, CA.

References for this article

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Return to Index of Articles: Minerals & Supplements

Last updated: Saturday, August 29, 2015

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