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My Top 5 Picks: When You’re Deficient in Magnesium & Potassium

Last updated: January 28, 2019

A deficiency in Magnesium and Potassium can force the heart into fatal arrhythmias. Most A-Fib patients are lacking in both minerals.

Magnesium & Potassium Deficiencies are Common

Magnesium (Mg) is needed for proper muscle, nerve, and enzyme function. Lacking in most diets, it’s often necessary to take a magnesium supplement over several months to restore levels.

A-Fib patients are often deficient in Potassium (K), as well In fact, a deficiency of magnesium can lead to potassium depletion. Potassium is essential for normal nerve impulses and muscle function and maintaining normal cardiac function.

A Wish List: My Top 5 Recommendations

These are the Mg and K products I recommend (and use) along with a great book on magnesium. I’ve also added two Bonus Videos. These products are available from many online sources. You can see this ‘Wish List’ on (Note: Use our Amazon portal link, and your purchases help support For recommended dosages, go to Treatments/Mineral Deficiencies.

 Magnesium Mg Drs Best1. Doctor’s Best High Absorption Magnesium

(200 Mg Elemental) 240-Count tablets. One form of easily absorbed magnesium is Magnesium glycinate a chelated amino acid. Look for the label ‘Albion Minerals.’ This is a patented process designed to limit bowel sensitivity.

 Potassium NOW bottle2. Now Foods Potassium Gluconate Pure Powder, 1-pound

Just like magnesium deficiency, A-Fib patients are usually deficient in Potassium as well. We recommend the powder in order to take the recommended 1600-2400mg/day. (Be cautious of tablets that list ‘540mg’ but only contain 99mg of Potassium.)

 Ancient Minerals Magnesium Oil3. Ancient Minerals Magnesium Oil, 8 oz.

If oral magnesium causes bowel sensitivity (loose stools), an alternative is magnesium oil which bypasses the gastrointestinal tract. Spray on the skin and massage in. After 20-30 minutes, you can wipe off any powder residue (salt) or just jump in the shower! Eight sprays delivers approximately 100 mg of magnesium to the skin.

(Tip: To help with muscle ticks, my wife applies 5-6 sprays of magnesium oil to each leg before bed.)

 4. Ancient Minerals Magnesium Chloride Bath Flakes in bulk

Similar to Epsom salts (Magnesium sulfate), the molecular structure of Magnesium Chloride is different and is much more easily absorbed into the body. Soak for 20-30 minutes in a bath with 2 cups of bath flakes. Can be used in conjunction with magnesium tablets. Any brand will do.

 The Magnesium Miracle book cover5. The Magnesium Miracle by Carolyn Dean

Comprehensive book on the importance and helpful benefits of magnesium as well as just what a magnesium deficiency causes. Easy to read with organized sections with dosing recommendations. Best seller on with over 600 reviews.

Dr. Carolyn DeanVIDEO BONUS:

From our A-Fib video library, two short videos with Carolyn Dean, the author of The Magnesium Miracle:

1.      The Best Way to Take Magnesium and
2.      The Importance of Balancing Calcium and Magnesium.

Learn More about Mineral Deficiencies

To read more about mineral deficiencies and how to use these products and recommended dosages, go to Treatments section on Mineral Deficiencies.

Caution: Consult with your doctor before adding any supplements to your treatment plan.

Got A-Fib? You're not Alone. Check our list of online discussion groups

References for this article
Mineral Deficiencies.

Knox, Kerri. FACT ( Atrial Fibrillation responses. A2:

Berkelhammer, C, Baer, RA “A clinical approach to common electrolyte problems:*4. Hypomagnesemia”

Burgess, Jackie. “The Strategy – What Metabolic Cardiology Means to Afibbers,” July 2010, P.5.

If you find any errors on this page, email us. Y Last updated: Monday, January 28, 2019

Back to: Treatments/Mineral Deficiencies

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