This is the therapy of Francisco Contreras, M.D. Metabolism is the total function of our body. In order for our body to function properly, all its attributes (physical, mental, and spiritual) must work in harmony. Total care is the goal of metabolic therapy. Metabolic therapy elements are utilized in order to provide our human organism the best environment to combat disease and regain health.
Metabolic therapy is a non-toxic cancer treatment based on the use of Vitamin B- 17, amygdalin, proteolytic pancreatic enzymes, immuno-stimulants, and vitamin and mineral supplements (see Phase I and II on page 28). Laetrile (B-17) is the chief anti-tumour agent. It is a natural chemotherapeutic agent found in over 1,200 plants, particularly in the seeds of common fruits such as apricots, peaches, plums, and apples. It is also a diglucoside with cyanide radical that is highly "bio-accessible." This means that it penetrates through the cellular membrane reaching high intra-cellular concentrations easily. This cyanide radical is what once made the vitamin controversial, but over the years, it has been proven that amygdalin is completely safe and non-toxic.
The normal cells in our organism contain an enzyme called Rhodanese, which "neutralises" the amygdalin. This enzyme does not allow the amygdalin to release the cyanide. In this way, amygdalin only serves as glucose to healthy cells providing energy. Malignant cells do not contain this enzyme. In the absence of Rhodanese, the amygdalin is activated liberating the cyanide radical inside the malignant cell causing its destruction. This is the way God creates things: Only cancer cells are destroyed but normal ones are not affected. As the amygdalin attacks unhealthy cells, it transforms into a silicate, which is much like aspirin. It contributes greatly to pain control. The hundreds of clinical studies conducted by many competent physicians around the world, including those directed by Dr. Emesto Contreras Rodriguez at the Oasis of Hope Hospital hospital in Mexico, give us complete confidence that there is no danger.