On my last visit to the onc he sent me home with a copy of an article from Consumer Reports on the different brands and types of Calcium. His basic advice based upon this article is that it doesn't matter if you take the expensive calcium or the cheap stuff or which type as long as you take it. He also said not to worry about Vitamin D included in the supplement because unless you live in a cave you don't need it.
I do get to learn about vitamin B12 this week - my bloodwork shows that I'm dificient in B12. Plus my bone density test came back as having osteopenia so I get to learn about that one to.
Hugs,
Cathy