November 29, 2021

When people think of vitamin K, they often relate it to blood clotting—and this is an accurate association because this vitamin is required in the synthesis of several blood proteins involved in clotting, says Nijya Saffo, RD, registered dietitian and owner of NK Fitness and Nutrition, LLC. Besides this, another key role of vitamin K is the activation of proteins needed for bone metabolism (the replenishment of bone tissue).