What Causes Aortic and Mitral Heart Valves to Calcify?

Heart valve calcification occurs when calcium deposits gradually build up on the aortic or mitral valve, causing the normally soft valve tissue to become stiff. Over time, this process may contribute to valve stenosis, reduced valve function, and symptoms such as shortness of breath, fatigue, or heart palpitations.

In this video, Dr. Marc Gillinov explains why heart valves may calcify as people age and discusses what researchers currently understand about the process. He clarifies that valve calcification does not appear to be caused by consuming dairy products or taking calcium supplements and reviews possible contributing factors, including atherosclerosis and inflammation. Dr. Gillinov also encourages patients to focus on controllable health factors such as exercise, nutrition, and weight management. (Video posted on August 10, 2026)