This is probably not what you're looking for either but here goes:
I think extra magnesium, which many people are unknowingly deficient in, and vitamin C would be beneficial to most everyone. If it's Cancer you're dealing with I have another suggestion - Essiac supplements or tea.
As for the other supplements, I would ask why specifically you are taking them? My philosophy/guideline is to supplement with what I'm deficient in or my body actually needs. I don't think it wise or helpful to overload our system if the body is functioning well without added potions. If we're giving the body proper food and exercise it is built to be a well-running machine. However, if the body is being abused, with alcohol, junk food and such, that is another story.