The vitamin you're not paying attention to and how to get it in your diet

It’s the first vitamin you received when you were born, and it turns out vitamin K may be a factor in healthy aging as well, helping to keep veins and arteries flexible as the body gets older. Every baby in North America receives a vitamin K shot after entering the world to support healthy blood clotting during infancy. “I think very few people know very much about vitamin K and I would argue a lot of what they do know is not driven by the scientific literature, but more by organizations for profit benefiting from vitamin K supplementation,” Sarah Booth, director of the Jean Mayer U.S. Department of Agriculture Human Nutrition Research Center on Aging at Tufts University, in Boston, and leader of its vitamin K team, told TODAY.