Ah! If she gets rid of the junk food that alone will make her feel better. It would actually be an effortless way to lose weight as excess pounds puts an extra burden on trying to breathe. Maybe you could explain this to her.
In the meantime,I am glad that I was able to help. I also cared for my mother who had COPD, so I am very familiar with this condition. Please do keep me posted as to her progress.