Want Guaranteed Protection from Illnesses? Rambam Explains How to Achieve It
"Anyone who follows these guidelines that we have outlined, I guarantee will not experience illness throughout his life until he grows very old and dies. He will not need a doctor, and his body will remain whole and healthy all his days. Unless his body was unhealthy from its inception, or if he has accustomed himself to bad habits from birth, or if a plague or famine strikes the world."