Vitamin K supports bones and cartilage. So researchers wanted to know if low vitamin K was linked to joint damage and osteoarthritis.
The study found that people who had low levels of vitamin K in their blood were about 33 percent more likely to develop knee osteoarthritis.
Also, people with low vitamin K levels were about two times more likely to show signs of damaged cartilage in their knees.
The authors suggested that vitamin K may be important for keeping knees healthy.