Since Vitamin k is involved in blood clotting, you should ask your doctor. Your doc can test your clotting time with a simple blood test. Because Vitamin K is fat soluble, it is possible to take too much vitamin K. read more
If you want more Vitamin K, eat more leafy greens and other green vegetables. That will do you no harm (unless you are taking Warfarin to thin your blood.) There are lists of foods that supply vitamin K on the web. Vitamin C also prevents bruising by strengthening the blood vessels. There are lists of foods that supply vitamin C on the web. read more
Vitamin K Deficiency. A severe vitamin K deficiency may cause symptoms related to increased bleeding. These can include nosebleeds, heavy menstrual periods, bloody gums and easy bruising. Properly prescribed vitamin K supplements may help decrease your bruising if you have a true vitamin K deficiency. read more
You can obtain all of the vitamin K2 you need (about 200 micrograms) by eating 15 grams of natto daily, which is half an ounce. read more