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From: Juhana Harju on 3 Dec 2007 02:31
Ron Peterson wrote:
> On Dec 2, 5:36 am, trigonometry1...(a)gmail.com wrote:
>
>> It looks like it takes about one milligram of K1 to optimize the
>> formation of the bone matrix protein. Some vitamin K1
>> is converted into K2 in the gut.
>> And I recall that K2 MK-7 has a longer biological half life
>> than K2 MK-4. I'd suppose a K2 supplement could be
>> smaller and get the same effect a one milligram K1 supplement
>> dose.
>
>> Nonetheless, K1 maybe good as antioxidant.
>
> Thanks everyone, from
> http://jn.nutrition.org/cgi/reprint/134/11/3100.pdf it looks like K2
> helps reduce severe cvd calcification, but not
> moderate calcification in normal dietary intake of about 40 mcg.
> Apparently cheese is a source at that level and other documents claim
> that cheese doesn't contribute to cvd because of the vitamin K2
> content.

According to some sources chicken and turkey are also rather good sources of
vitamin K (apparently they contain K2).

http://www.tinyurl.dk/2394

> Since the osteoporosis experiments used a therapeutic dose of 45 mg of
> K2, it may be difficult or expensive to get supplements of that
> dosage.

There is already plenty of evidence showing that high dose (45 mg/day)
vitamin K2 supplementation reduces fractures very efficiently. It is urgent
that high dose vitamin K2 supplementation should be covered by insurance for
people with osteoporosis.

--
Juhana

Ravintoblogini:
http://ruohikolla.blogspot.com/

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