Hi, 35 white male 5'11" 260 lbs- exercise 3x week
I suffer from PVC's that come and go over the months and years. I also have some other issues that aren't explained like fatigue, nausea, times where I lose my appetite for days. I was doing some research and discovered that a magnesium deficiency may could explain some of my symptoms - for example there was some study where people were given IV magnesium and their symptoms improved. Another thing is that looking back over my history, my potassium levels are almost always borderline low.
So basically what can you tell me about magnesium levels, test accuracy, and if I want to try some supplements to see if I feel better or my symptoms improve, what would be the safest thing to get (and avoid) and the right dosage to start out? Are there any dangers of taking magnesium?
I looked up tests given at a local lab and i see Magnesium serum and RBC magnesium tests available, but I also read that these are highly inaccurate. Is it even worth getting tested, if so should I do serum Magnesium or RBC magnesium or both?
Magnesium is present in the blood as well inside all cells, including heart muscle and nerves. While conventional serum/blood magnesium testing measures mag level outside cells, it is the intracellular magnesium that affects muscles and nerve conduction. So this is why serum/blood mag testing is an inaccurate tool for "true" mag level; however, as far as I know it is the only test used by hospitals. I do not use the RBC magnesium test so cannot tell you its validity.
Usually the lower normal level of blood magnesium is around 2mg/dl -- in the hospital we give IV magnesium sulfate to people with mag level less than 2, especially if arrhythmia is in the equation. People do tolerate much higher blood magnesium levels, but at some point low blood pressure, abnormal slow heart rate and mental confusion set in (usually seen in pregnant women given huge quantities of IV mag for preeclampsia)
1. Get whichever magnesium test your doctor’s office offers. If the level comes back low or even normal, consider that it is probably not a true measure of your cells’ magnesium level.
Copyright 1994-2018MedHelp.All rights reserved. MedHelp is a division of Vitals Consumer Services, LLC.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. MedHelp is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.