I’ve seen posts, in another group, where it has returned. I’ve also seen some 14-20 years out no reoccurrence. I don’t think anyone knows for sure. Be sure to pay attention to your body if anything changes go see your doctor.
I’m so sorry. Sounds like your Mom was making great strides to improve her health and this really feels like a slap in the face. I wouldn’t take any vitamins or supplements until you speak with the oncologist. My feelings are that they surely help repair good cells but when the cancer is active is it also helping it??