Hi Birgitta-A,
That's a very good information about wheatgrass, might be able to reduce the iron overload problem and also possibly extend the need for BT.
I guess the cancer patient that spoke to my sister maybe felt a lot better/more strength after consume wheatgrass, then she presumed that it helps her to boost up her immune system. As she was from a small town, all these info are pass on from "mouth to mouth".
Have a nice and pleasant weekend to everyone.