Vitamin K is a group of fat-soluble vitamins that share similar chemical structures. Vitamin K1 is mostly found in plant foods, while vitamin K2 is found in fermented foods and animal products.

Dear Dr. Roach: My blood work showed that I was slightly low in vitamin D, so my doctor recommended that I take a supplement. My pharmacist was concerned and told me that vitamin D does not get ...

Vitamin K is well-known for its role in blood clotting. But you may not know that its name actually refers to a group of several vitamins that provide health benefits far beyond helping your blood ...