One of the most popular fasts in recent years has been the Daniel Fast, a 21-day period of prayer and fasting based on the Old Testament prophet's fasts recorded in Daniel 1 and Daniel 10.

The Daniel Fast is a partial fast, in which certain foods are restricted and others are consumed. This fast is similar to a "purified" vegan diet; in addition to the exclusion of all animal products, no additives, preservatives, sweeteners, caffeine, alcohol, white flour, or processed foods are allowed. With the Daniel Fast people can eat as much Daniel-Fast-friendly food as they would like.

Though most people begin the Daniel Fast for a spiritual purpose, many are amazed by the physical transformation that takes place. Many with high cholesterol experience a drop to healthy levels; people who have wrestled with weight issues are suddenly able to lose the pounds. The vast majority of participants following the Daniel Fast report a general sense of well-being and increased energy....