"It claims that everyone who has cancer is missing 4 essential proteins"
Proving that claim would be impossible. My experience is that any attempt to put *all* cancers in a single category (i.e. all cancers caused by fungus, all cancers caused by Asian fluke worm, etc.) are naive and wrong. Cancer is a many-headed monster, and different groups of cancers (i.e. carcinomas, lymphomas, etc.) bear litle, if any, resemblence to one another.
My cancer was most certainly brought about by bacteria (shagilla) but to say that all cancers are caused by bacteria would also be naive.