Vitamin K can be found in green leafy vegetables as well as in some vegetable oils, meat and cheese.
Researchers in Germany found that about one quarter of those people with the highest intakes of vitamin K were 28 percent less likely to die from cancer than those who ate less vitamin K-rich food.
Scientists at the Cancer Research Center in Germany studied the dietary habits of more than 24,000 people for ten years. The people were between the ages of 35 and 64 and were cancer-free at the beginning of the study.
The findings are published in the American Journal of Clinical Nutrition.