Hi tom123 and thanks for your inquiry. As everyone is affected differently by COPD. treatment and recommendations can vary (widely) from patient to patient. What may be typical (and appropriate) for one person (as far as diet, nutrition and vitamin supplements), may not be suitable at all for another. However, in view of your expressed concern, I thought you might find it beneficial to read this article about COPD and nutrition and health. All the best, Leon (site moderator)