Yes, K comes in several forms (as does vitamin E, for instance) and it's smart to get K1 and at least one variety of K2.
The Vitamin K product in the link I posted includes
Vitamin K1 (as phytonadione)
1500 mcg
Vitamin K2 (as menaquinone-4)
1000 mcg
Vitamin K2 (as trans menaquinone-7)
100 mcg
and LEF offers additional versions, including a straight K2 (as menaquinone-4) with 45,000 mcg -- the amount used as an Rx medication in Japan to improve bone density, and a low-dose version for those on blood thinners (see your doctor before taking K supplements if on those).
The caveat is still warranted, but they offer the product because A) the dangers of NO vitamin K are substantial and B) some doctors prefer their patients on blood thinners to get at least a small dose of the vitamin.
Yes, K comes in several forms (as does vitamin E, for instance) and it's smart to get K1 and at least one variety of K2.
The Vitamin K product in the link I posted includes
Vitamin K1 (as phytonadione) 1500 mcg Vitamin K2 (as menaquinone-4) 1000 mcg Vitamin K2 (as trans menaquinone-7) 100 mcg
and LEF offers additional versions, including a straight K2 (as menaquinone-4) with 45,000 mcg -- the amount used as an Rx medication in Japan to improve bone density, and a low-dose version for those on blood thinners (see your doctor before taking K supplements if on those).
It should be strongly advised anyone with blood disorders or taking blood thinners should not take vitamin K!
I understand the issues, which is why I added the caveat, but LEF's low-dose vitamin K is not 45,000 mcg or even 1000 mcg but just 45 mcg -- less than in a cup of Romaine lettuce.
The caveat is still warranted, but they offer the product because A) the dangers of NO vitamin K are substantial and B) some doctors prefer their patients on blood thinners to get at least a small dose of the vitamin.