I'm not sure what the rules are in regards to recommending a product, but I wanted to mention something that seems to be helping my wife. She was in the hospital 3 times over the course of a month and a half due to increased co2 retention. After the last hospital visit her lung doctor recommended a drink called Pulmocare, which was designed to help COPD patients, specifically targeting co2 retention. It is made by the same company that makes Ensure, and so far it has been a god-send. It is… read more