3 of 4
Magnesium—a mineral that relaxes the bronchial tubes—can help with asthma. Take 400 milligrams a day. If you routinely produce mucus from your lungs (you cough it up, rather than mucus coming out when you blow your nose, which is usually from a sinus conditions), consider N-acetyl-cysteine. It's a substance that loosens mucus and boosts production of one of your natural antioxidant scavengers called glutathione, which helps prevent damage in lung tissue. We recommend 500 milligrams twice daily. Even caffeine can help people with asthma. Caffeine seems to stabilize and shrink the lining of the airways and dilate bronchial tubes to help make breathing easier.