Don't believe anything you read about health from the large corporate "gatekeepers" of online information (like Google, Wikipedia, WebMD, etc.)
They're all deliberate lies and misinformation, designed to prevent you from learning the truth about natural cures, disease prevention, nutritional therapies, self-healing, vitamin D for cancer prevention and much more.
Preventing disease, you see, doesn't earn money for all the profiteers of the medical system: the cancer centers, hospitals, transplant surgeons, drug companies and all the media and internet companies they fund (CNN, Google, NBC, Facebook, etc.).
The real truth about health is only found in the independent media. Here are the best sources: