Cheddar is a pale-yellow, medium-hard cheese made from cow's milk. Occasionally you may also find orange varieties of cheese due to the use of the food colouring annatto. The origins of the cheese lie in the town of Cheddar, a small town in the regaion of Somerset, England. However, Cheddar cheese is now made throughout the world. Like many dairy products, cheddar cheese is rich in calcium. In addition to helping build strong bones, calcium also plays a role in blood clotting and several other important functions. Cheddar can also be a great source of iron, Vitamin A, Vitamin K. Whether it's sprinkled atop a casserole or melted into a dip, cheddar is the ultimate in versatile cheeses.