22.02.2025.
Vitamin K doesn’t always get the attention it deserves, but it plays a vital role in keeping the body functioning properly. It is best known for aiding in blood clotting, and helping wounds heal efficiently. Beyond that, emerging research suggests it may also contribute to maintaining strong and healthy bones.
Why vitamin K matters
Vitamin K is a group of fat-soluble vitamins that support crucial bodily functions, particularly:
- Blood clotting – Prevents excessive bleeding by ensuring wounds heal properly.
- Bone health – Some studies suggest that Vitamin K contributes to bone strength and may help prevent fractures.
Where to find vitamin K
Fortunately, Vitamin K is naturally present in a variety of foods, including:
- Green leafy vegetables – Broccoli, spinach, kale, and cabbage are excellent sources.
- Vegetable oils – Such as soybean and canola oil.
- Cereal grains – Whole grain cereals provide a small but beneficial amount.
- Small amounts can also be found in meat and dairy foods.
How much do you need?
The recommended daily intake of Vitamin K depends on body weight. Adults require about 1 microgram per kilogram of body weight each day. For instance:
- A person weighing 65kg needs 65 micrograms daily.
- A person weighing 75kg needs 75 micrograms daily.
A microgram (μg) is one-thousandth of a milligram, making these amounts quite small but essential.
Can you get too much vitamin K?
Since excess Vitamin K is stored in the liver, daily intake is not strictly necessary. There is limited research on the effects of taking excessive amounts through supplements, so it is generally recommended to meet your needs through a balanced diet.
Takeaway
For most people, a well-rounded diet provides all the Vitamin K the body needs. Including a variety of leafy greens, healthy oils, and whole grains in your meals ensures optimal levels for wound healing and bone health. While supplements are available, they should only be taken under medical guidance, as more research is needed on the long-term effects of high doses.
