Herbs
My oncologist just showed me this app and said this is the one that she uses to check what herbs are ok to take.
Forum Discussion
@kezmusc My oncologist told me that cardiologists don't like people to take calcium supplements as they can cause heart problems. She said it was very easy to get all you need from food, and that Vitamin D is more important for bone health. I believe @Romla has looked into it in some more detail.