Cancer is a disease of the genes and when they are disrupted the result can be uncontrolled cancerous growth (tumors). We know that 3 things can disrupt genes; radiation (x-rays, solar rays, emf), toxins (cancer causing chemicals which are abundant in modern life and toxins from certain dental bacteria), and cancer viruses (which can penetrate cells and damage DNA). Someone with cancer needs to remove the causes of DNA/gene damage by distancing themselves from sources of radiation, cleansing out the toxins and killing dental bacteria (especially in root canals), and eliminating cancer causing viruses.
this is an excerpt from http://www.dragonfly75.com/eng/cancer.html
Bechamp's microzymas later became known as micro-organisms - bacteria and viruses. His observation that disease comes from a combination of poor cellular terrain and toxins remains spot on, imo. For an enlightening read, see: