I've believed it would reduce the effects of COPD for a long time, just because I know how it works....I've been taking it 25 yrs and my lungs are clear as a bell.
Just today reading a post from another member who believes she was exposed to Covid and is challenged with COPD and some other health issues, I reminded her to up Vit C and Vit D and Zinc, and then sent her this info which I just found..
Potential New COPD Anti-inflammatory Identified in Grape Polyphenol
As always do your research ... lord I hate to see people suffer so much when I know there is help.