Clinical Study Title:
Comparison of phylloquinone bioavailability from food sources or a supplement in human subjects.
|Plain English Summary:|
|The absorption of vitamin K from a standard meal was examined in young adults. The absorption from the meal was compared to the vitamin K absorption after a supplement was given. There was a difference in vitamin K absorption from different fruits and vegetables. It was found that larger quantities of spinach were able to be digested for a higher absorption of vitamin K. Most of the green vegetables were able to provide some source of vitamin K. However, a supplement of vitamin K was also easily absorbed and was able to provide more vitamin K.|