Paleo Diet and Paleolithic Diet Questions & Answers

Question

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I started taking K2 (5mg) over a year ago. I started taking it at night, but moved it to the afternoon because my mouth started falling open as I slept, which makes for an awfully dry mouth in the morning. So, I kept moving the time I took it- I took it in the afternoon for a while, and then recently started taking it in the morning. Now I've skipped a day and I guess two, because I didn't take it this morning and certainly don't want to take it in the P.M.

Even this annoyance is actually a benefit- I used to grind my teeth, but I don't anymore.

flag	asked Nov 8 2011 at 20:43 August 11.4k●4●16

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Can you please explain how K2 relates to tooth grinding/mouth falling open? – Rockgrrl Nov 8 2011 at 21:00

5 mg is a lot to be taking forever with a fat soluble. I suppose it's possible that with enough A and D it won't matter, but there must be an upper limit. – Travis Culp♦ Nov 8 2011 at 21:01

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It is not a lot if there is a breakdown in the Vitamin K2 recycle system Travis. – The Quilt Nov 8 2011 at 22:07

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And how might one identify such a breakdown? – Travis Culp♦ Nov 8 2011 at 23:28

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Rockgrrl, supplementation of K2 (and magnesium) did what I describe above. I have only had the experience of it happening, not the biochemistry education necessary to explain it. – August Nov 9 2011 at 16:45

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AdrianaG · Answer 1 · 2011-11-09 00:23:10Z UTC

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I've been taking 45 mg a day for several motnhs with no obvious side-effects.

answered Nov 9 2011 at 0:23

AdrianaG
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Agentzero · Answer 2 · 2011-11-08 22:51:32Z UTC

With some Googling you will find articles on whether there is a K2 upper limit. From memory, no significant side effects were found at levels of 45 mg/day. I don't remember how long that dosage was maintained in the study.

I'm skeptical the K2 is causing you to sleep with your mouth open. I also wonder how much you were absorbing if you were taking it at night, unless you were eating some food with fat at the same time.

Mike Gruber · Answer 3 · 2011-11-09 01:57:47Z UTC

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I've been taking 15 mg/day for 1.5 -> 2 years (not sure). AFAIK, no side effects. I feel fine.

answered Nov 9 2011 at 1:57

Mike Gruber
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Can you have too much K2?

3 Answers