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Improve bone density and strength without medication?
Osteoporosis & Bone Health | Last Active: Jun 6 11:28am | Replies (177)Comment receiving replies
@gently I have afib (with heart rate close to 200) once or twice a year and take K2. Noone has told me that K2 contributes to afib. Can you share a source?
Vitamin K helps clot your blood. So perhaps that is the reason for the contraindication. With Coumadin, it actually is an antidote for bleeding.
For other blood thinners, perhaps the blood clotting function of K2 also has an effect against anti-coagulation. And anyone with afib is at risk for clots: K2 could conceivably increase that risk.
I have been cautious with it, taking only 45mcg. I am not on a blood thinner.
Replies to "@gently I have afib (with heart rate close to 200) once or twice a year and..."
windyshores,
K2 can cause afib. Afib can cause the clots. Following that, blood thinners protect against clotting, and stroke, but not agains afib.
Do you know where (which chambers of the heart) your tachycardia originates. I'm guessing that a physical cardiac issue is causing the sinus rhythm. I'm also guessing that k2 and the calcium potassium channels that it block are not a contributing factor. (Though I would be obsessively checking my heartrate in the hours after taking K2.)
If your heartrate is uncontrolled you might (and I feel a little obnoxious suggesting) look at the ablative and maze procedures for arrythmia.
I take less k2 (7 is thought to be worse than 4 because it is in your system longer) because of arrythmia problems encountered by our members. Consequently I take less calcium. I'm not sure anyone should read what I write or (most especially) behave in a manner similar to mine.
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@gently again, from online: can you share a difference of opinion with this?
"Don't worry at all about Vitamin K1 or either K2-MK7 or K2-MK4 while on Eliquis, Xeralto or the new Edoxaban just approved by the FDA as the third Factor Xa inhibitor NOAC. You can take as much Vitamin K as you might reasonably want for better health without any problems with these NOAC drugs. These drugs are not Vitamin K antagonists."