Chronic Obstructive Pulmonary Disease (COPD) is a group of lung conditions that obstruct the airways and make it difficult to breathe. This condition is characterized by progressive airflow limitation that is not fully reversible. COPD affects an estimated 11 million people in the United States and is the third leading cause of death globally. Understanding COPD, its causes, and nutritional considerations can help individuals manage their condition and improve their overall health and well-being. What is Chronic Obstructive Pulmonary Disease (COPD)? COPD is a progressive lung disease that makes it difficult to breathe. The two main forms of COPD are chronic bronchitis and emphysema. Chronic bronchitis is characterized by inflammation and thickening of the airways, while emphysema damages the air sacs in the lungs, causing them to lose their shape and elasticity. People with COPD typically experience shortness of breath, coughing, and wheezing, and the condition can worsen over tim...