US researchers from the Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, report that people with the highest blood levels of the main form of vitamin K – phylloquinone – have the lowest risk of having osteoarthritis in the hands and knees. They also tested hundreds of different foods to find the best sources of vitamin K. Here are the top 10:
1. kale
2. collards
3. spinach
4. turnip greens
5. beet greens
6. dandelion greens
7. mustard greens
8. Brussels sprouts
9. broccoli
10.spring (green) onions
Source: USDA Agricultural Research Service, Aug 1, 2007