We will do our best to answer this and many other similar questions in this article which should ease your mind regarding this subject.
Why Do People Take Vitamin K?
helping the blood clot, preventing excessive bleeding. Unlike many other vitamins, vitamin K is not typically used as a dietary supplement. Vitamin K1 is obtained from leafy greens and some other vegetables.
Vitamin K1 is the main form of vitamin K supplement available in the U.S. Recently, some people have looked to vitamin K2 to treat osteoporosis and steroid-induced bone loss, but the research is conflicting.
Forms Of Vitamin K
Vitamin K has only three forms: vitamin K-1, or phylloquinone; vitamin K-2, or menaquinone; and vitamin K-3, or menadione.
Menaquinone-4, or MK-4, is the only form of vitamin K-2 that can be produced in the body from vitamin K-1. Dosage
According to the National Academy of Sciences, an adequate intake of vitamin K is 90 micrograms for females and 120 micrograms for males. There is no reference daily intake for vitamin K and no recommendations specific to vitamin K-7.
Taking larger doses is not dangerous, as a healthy person’s body can tolerate doses as high as 45 milligrams, or 45,000 micrograms. However, such high doses can counteract the effects of the anticoagulant medication warfarin.
Half-Life And Benefits
MK-4 is the most common vitamin K-2 supplement.
As doses higher than 100 micrograms per day can reduce the efficacy of anticoagulant medications, the use of MK-4 supplements is not always a healthy choice. If you are currently taking anticoagulants, vitamin K-7 is one of the best vitamin K supplements available.
Good Sources Of Vitamin K
Vitamin K is found in: green leafy vegetables – such as broccoli and spinach
vegetable oils
cereal grains Small amounts can also be found in meat and dairy foods.