Though I believe in the benefits of a good healthy diet, I am not so sure that I believe in "natural" cures for cancer. If I were your grandmother, I would make sure that the advice I took was from a licensed pharmacist. A few of them are into natural cures.

I think that you grandmom should have started this path long before now in hopes that the cancer wouldn't come back.

My advice is that she should take her doctor's advice.