4

votes

Can you have too much K2?

Answered on August 19, 2014
Created November 08, 2011 at 8:43 PM

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.

7bf306ada57db47547e9da39a415edf6

(11214)

on November 09, 2011
at 05:58 PM

I eat a lot of fat. The K2 seems to be the thing that is doing it. When I stop supplementing, my mouth seems to stay closed. I remember seeing those high doses too, and that there wasn't any known limit, but I was wondering if people started noticing they don't need as much after supplementing for a while.

7bf306ada57db47547e9da39a415edf6

(11214)

on November 09, 2011
at 04:45 PM

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.

Ed71ab1c75c6a9bd217a599db0a3e117

(25482)

on November 09, 2011
at 02:09 AM

Travis all ya gotmto do is read the blog bro. Its posted today for you to read.

Medium avatar

(39821)

on November 08, 2011
at 11:28 PM

And how might one identify such a breakdown?

Ed71ab1c75c6a9bd217a599db0a3e117

(25482)

on November 08, 2011
at 10:07 PM

It is not a lot if there is a breakdown in the Vitamin K2 recycle system Travis.

Medium avatar

(39821)

on November 08, 2011
at 09:01 PM

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.

3f11b5fda91063846bba45daac3541bd

(1186)

on November 08, 2011
at 09:00 PM

Can you please explain how K2 relates to tooth grinding/mouth falling open?

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3 Answers

2
2b2c2e4aa87e9aa4c99cae48e980f70d

(1059)

on November 09, 2011
at 12:23 AM

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

1
Cd2ff8c68dd1f1d539ad7f0ee94b0421

on November 09, 2011
at 01:57 AM

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

1
6984d31d0c639b4f470dc7ae15783929

on November 08, 2011
at 10:51 PM

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.

7bf306ada57db47547e9da39a415edf6

(11214)

on November 09, 2011
at 05:58 PM

I eat a lot of fat. The K2 seems to be the thing that is doing it. When I stop supplementing, my mouth seems to stay closed. I remember seeing those high doses too, and that there wasn't any known limit, but I was wondering if people started noticing they don't need as much after supplementing for a while.

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