HI,
Most coral calcium are not ground fine enough to do you much good. be careful of which one you get.
I would try a variety of things. I don't know how much essiac is but have heard good things about it. Enzyems are like the coral calcium. Please read and study.
I use Young living enzymes and liver cleanse. with their coral calcium.
Keep studying.
Another book to read is Nurition Prescrition for nutritional healing by Bach and bach.
The ideas as I udnerstand it is to build the system up so it can defeat the rampant cells of cancer.
Rose