Healthy Lungs, 30 Vegetarian Capsules, Life ExtensionLife Extension Healthy Lungs Supports Lung Function. Gluten Free, Non GMO, Vegetarian. Dietary Supplement. Lung function declines with age and oftentimes, the quality of the air we breathe doesn't help. This respiratory supplement combines four nutrients scientifically studied for lung support and healthy respiratory function. Healthy Lungs Benefits: Supports lung function. Helps protect lungs from environmental factors. Encourages easy, open airways.