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MrsZee, January 20,  2018  7:10pm EST

Magnesium seemed to have worked for me

I am so glad that so many of you have posted about magnesium supplements.  It got me thinking and I did some investigating and found the National Institute of Health ( website to be quite helpful.  On the page about magnesium it says "The diets of most people in the United States provide less than the recommended amounts of magnesium." and "Extreme magnesium deficiency can cause numbness, tingling, muscle cramps, seizures, personality changes, and an abnormal heart rhythm."  After giving this some serious thought, I realized that my usual multivitamin contained a good amount of magnesium but I was very lax about taking them this past year and virtually not at all in the last four months.  So, that could have been my problem.  I started taking the recommended maximum of 350mg /day and haven't had an A-Fib episode since.  That seems to me like it may have been the culprit.  Only time will tell I guess.  
  • evalovic
    evalovic, January 21,  2018  6:17am EST
    Interesting.  There is a blood test for magnesium level so you could certainly check to see if you are in the normal range - there are also lots of different  magnesium tablets eg citrate,oxide etc.  Long before I had AFIB I had been told to take magnesium to tolerence for asthma - though other doctors I know think that is useless.Anyway I take lots magnesium, didn't stop my paroxysmal AFIB but does have me at normal level in blood test.  Maybe you were magnesium deficient before - anyway Inever quibble with anything that seems to be working.  Hope your good fortune continues.
  • dave205
    dave205, January 22,  2018  2:45am EST
    Since I incresed my magnesium level I have not had an Afib event and that has been a little over a year.  I went from 100mg to 200mg.
  • MrsZee
    MrsZee, January 22,  2018  3:17am EST
    Apparently, too much magnesium in supplement form can have a negative reaction.  Again, from the NIH page:  "High intakes of magnesium from dietary supplements and medications can cause diarrhea, nausea, and abdominal cramping. Extremely high intakes of magnesium can lead to irregular heartbeat and cardiac arrest."  The show the maximum amount from supplements and medications for adults as 350mg.  So it looks as though what can cure us can also be the culprit.  In this case more may not be better.  ​I sure do realize that this may not solve everyone's problems, however I am certainly glad that so many people shared this as it seems to have helped me and maybe it will help others that might have had this show up on the rare occasion like me.
  • Eric M
    Eric M, January 22,  2018  4:46am EST
    I've been taking additional magnesium supplements as well hoping that will help.  I haven't had any side effects from it but just keep in mind if you do take magnesium, one of the things that is common to give people prior to a colonoscopy to help clean them out is magnesium citrate which is also a common magnesium supplement.
  • Mellanie at
    Mellanie at, January 22,  2018  5:22am EST
    Taking magnesium every day is one thing that I consider non-negotiable. However, I personally prefer to take magnesium as a separate supplement rather than as part of a multivitamin so I have more control over it. (I ditched multivitamins decades ago in favor of tailoring my supplements to my current needs.)With the magnesium, I order a replacement bottle or two when I have half a bottle left, but am considering setting it up as auto-replenish (I order using Amazon Smile, which is just like regular Amazon but donates a percentage of my purchase back to our non-profit, Magnesium glycinate and magnesium taurate are the two most commonly recommended forms for those with afib, and both have less bowel disruption than other forms such as oxide, citrate, etc. But most who recommend magnesium recommend that you start slowly and build up gradually so that you can tweak as you go along. They also recommend taking potassium with the magnesium as they work together. Regarding testing, I've heard that you need the intracellular magnesium test rather than the magnesium tests that doctors can order.Mellanie
  • Toots
    Toots, January 22,  2018  12:02pm EST
    I’m curious about the dosage?  I take 400 grams but am wondering if’s too much.?  I have an upcoming appointment with my cardiologist and will check with him.
  • RJA
    RJA, January 23,  2018  2:11am EST
    What type of magnesium are you taking and possibly the brand?
  • Toots
    Toots, January 23,  2018  2:52am EST
    It is the oxide type.  I’v decided I need to switch as I have been having some bowel issues.  Never considered it could be the type of magnesium I am taking!
  • MrsZee
    MrsZee, January 23,  2018  4:22am EST
    Well, I live just across the border in Canada and we have a brand here - Jamieson.  They have a good reputation here.  I don't know if they are sold in the US. went to the store and bought some and didn't give too much thought to what brand or what kind.  At that point, I just wanted to get some in my system to see if that was the culprit of my AFib.  Its Magnesium Oxide so maybe there is something better for the long term.  Actually, I intend to create a food list of the amount of magnesium in the usual foods I eat and get most it from food.  Again, on the NIH web page they provide a comprehensive list but it HUGE!  244 pages and very small print.  That is when I shot to the store and bought supplements.  Looking at that list also is what made me think it was the root of my AFib episode.  I had surgery in August and had to stop taking my daily multivitamin.  Then I fell out of the habit.  I also switched my diet a bit and must have missed my sources of magnesium (peanut butter for one thing).  Four months later I find myself in ER.
  • MrsZee
    MrsZee, January 23,  2018  4:25am EST
    I see that many people take magnesium with calcium and or with potassium.  I wonder if I am short on those two things as well.  This could take some work figuring out what I consume regularly and what I could be short on.
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