Dr. Perlmutter is a proponent of the one-day fast, as it allows the body to perform more efficiently. In this video, he explains why it it is the fast, from a chemical and biological standpoint, has value. But remember, before beginning a fast always consult your own doctor first! For more information visit: http://www.drperlmutter.com
Dr.Perlmutter recommends a one day fast before starting his whole life plan, and a three day fast four times a year to reset the body.