Most cancer deaths are unnecessary?
Wow. If you trully believe that a special diet, herbs and ‘unblocking spirituality’ is all that it takes to fight a volumetrically growing tumor...then you, and your loved ones, have led charmed lives.
Special diet?
Really just a proper diet. No non-food, no poisonous chemicals, reasonably balanced. That alone will eliminate most illness for the majority of people. Buy fresh foods rather than cans or packages.
As for the spiritual end, get rid of the toxic thoughts: Greed, envy, hate, jealousy, grudges, etc. They cause pain, and life threatening illnesses, and getting rid of them is a huge part of a cure.