Oregano is a culinary and medicinal herb from the mint. Oregano favored in Mediterranean cooking. It has used in medicine and cooking for thousands of years. It adds flavor, and it may have a number of health benefits. Vitamin K is important for bone growth, maintaining bone density, and the production of blood-clotting proteins. Calcium is necessary for the formation of bones and teeth. Oregano is also a rich source of dietary antioxidants, which help protect cells against the effects of free radicals.