Fasting has long been used in Europe both as a preventative measure and as a cure, particularly for degenerative conditions, and to purge the body of impurities or toxins. Knowledgeable in this tradition, Rudolf Breuss, a naturopathic practitioner, developed a 42-day juice fasting programme to nourish the body but starve cancer. Although fasting seems irrational when the body is already wasting away, Breuss's patients felt more alert and energetic...