Vitamin K

Vitamin K: Overview

Vitamin K is a fat-soluble essential vitamin. There are three forms of Vitamin K: K1 (a.k.a. phylloquinine, phytonadione); K2 (a.k.a. menaquinone); and K3 (a.k.a. menaphthone or menadione). Vitamin K is abundant in green vegetables and is also produced by the friendly bacteria that reside in the intestines.

Vitamin K Deficiency

Vitamin K deficiency is rare and does not occur with the consumption of a healthy diet that includes plenty of green vegetables. Symptoms include excessive bleeding and/or bruising. Deficiency results from the impaired ability to absorb fat and is related to some of the following conditions: cystic fibrosis, celiac disease, Crohn’s disease, liver disease, taking blood-thinning medications, serious diarrhea and serious burns.

Newborns are particularly susceptible to a condition known as hemorrhagic disease of the newborn (HDN), which is a result of Vitamin K deficiency. Vitamin K may not transfer very well from mother to fetus during pregnancy. Additionally, breast milk is not a good source of the nutrient, and exclusively breast fed infants may be in danger of deficiency. All infants in the United States and Canada receive a Vitamin K injection at birth to minimize the risk of developing HDN. Mothers can increase the level of Vitamin K in breast milk by regularly eating many green vegetables. Consult your ob/gyn for guidance.

Vitamin K's Health Benefits

In addition to being necessary for good health, Vitamin K has been shown to have other benefits. Vitamin K is necessary for proper blood clotting, and also helps the liver manufacture blood clotting factor. Additionally, Vitamin K helps support bone health. Studies have shown that Vitamin K helps reduce the risk of excessive bleeding. Vitamin K helps the body utilize calcium, and therefore the nutrient may ward off osteoporosis. Vitamin K helps prevent kidney stones, works to reduce unpleasant body odors, and is used topically to treat skin wounds.

Using Vitamin K

Pregnant women and nursing mothers should not use a Vitamin K supplement or any other drug without first obtaining the advice of an ob/gyn. Consult your physician before using any dietary supplements if you are currently taking any medications, as Vitamin K may interact with other medications or drugs you are taking. Vitamin K has been known to interact with antibiotics, blood thinners, doxorubicin, phenytoin, cholesterol-lowering medications, mineral oil laxatives and orlistat.

Body First

Vitamin K-2 (100mcg) 120 caps

セール価格 $5.99

ディスカウント% 67%



Vitamin K-2 (100mcg)

2 Options from $7.29 - $15.49

ディスカウント% up to 52%



MK-7 (Vitamin K-2)

2 Options from $9.89 - $17.49

ディスカウント% up to 54%



D3 plus K2 Dots Tangerine 60 tabs

セール価格 $10.99

ディスカウント% 42%



Vitamin D-3 and K-2 120 vcaps

セール価格 $5.69

ディスカウント% 56%



Vitamin K2 Menetetrenone (5mg) 180 caps

セール価格 $39.99

ディスカウント% 42%



Vitamin K2 MK-7 180 sgels

セール価格 $24.99

ディスカウント% 33%



Vitamin K2 - MK7 (100mcg) 50 vcaps

セール価格 $15.49

ディスカウント% 26%


Country Life

Vitamin K-1 100mcg 100 tabs

セール価格 $5.45

3 個買うと送料無料



Mega D-3 & MK-7 60 vcaps

セール価格 $11.99

ディスカウント% 52%


Doctor's Best

MK-7 (100mcg) 60 vcaps

セール価格 $8.92

ディスカウント% 58%



Vitamin D-3 & K-2 Liposomal Spray 2 fl.oz

セール価格 $9.39

ディスカウント% 51%


Pure Essence

Ionic-Fizz Super D-K Calcium Plus

3 Options $30.99

ディスカウント% up to 39%


Dr. Mercola

Vitamin K2 30 caps

セール価格 $27.97




Vitamin K-2 Menaquinone-7 (50mcg) 30 vcaps

セール価格 $5.59

ディスカウント% 51%


Nature's Life

Strontium Plus D3 & K2 60 tabs

セール価格 $11.89

ディスカウント% 50%