Colon cancer is what my father had, too, but he was denied chemo because he was too weak following a surgery-gone-wrong. Because he was being denied the mainstream treatment, we desperately searched out every alternative option we could find.
I found all sorts of claims on the internet, and I checked into each one. I even called and spoke with the people administering those alternative treatments. Most of the claims just didn’t pan out. However, I did make an appointment for intravenous Vitamin C, though they couldn’t see him for months. (It was too late.) Now I realize we might’ve been able to convince the hospital to try IVC.
Anyway, the above is why I’m skeptical of claims made by alternative medicine. I’ll watch the video you posted, though.