The duration of the fast depends upon the age of the patient, the nature of the disease and the amount and type of drugs previously used. The duration is important, because long periods of fasting can be dangerous if undertaken without competent professional guidance. It is, therefore, advisable to undertake a series of short fasts of two to three days and gradually increase the duration of each succeeding fast by a day or so. The period, however, should not exceed a week of total fasting at a time. This will enable the chronically sick body to gradually and slowly eliminate toxic waste matter without seriously affecting the natural functioning of the body. A correct mode of living and a balanced diet after the fast will restore vigour and vitality to the individual.

Fasting is highly beneficial in practically all kinds of stomach and intestinal disorders and in serious conditions of the kidneys and liver. It is a miracle cure for eczema and other skin diseases and offers the only hope of permanent cure in many cases. The various nervous disorders also respond favourably to this mode of treatment.

Fasting should, however, not be restored to in every illness. In cases of diabetes, advanced stages of tuberculosis, and extreme cases of neurasthenia, long fasts will be harmful. IN most cases, however , no harm will accrue to fasting patients, provided they take rest, and are under proper professional care.