"The Daniel Fast is based on the fasting experiences of the Old Testament Prophet. It’s a partial fast where some foods are eaten while others are restricted. Most people use this method of fasting for 21 consecutive days. Entering into a period of extended prayer and fasting is like pushing the “pause button” on life so you can draw nearer to God. The Holy Spirit joins you in this experience as you open your heart to receive from the Lord. You have a choice when you fast. You can focus the food and matters of the flesh. Or, you can enter into a deep spiritual experience with the Lord so He can work in your life and on your behalf. Don’t settle for less by catering to the flesh. Instead reach out for the best and allow God to minister to you. The Daniel Fast is a spiritual experience with significant health benefits. Thousands of people with health and weight issues experience success as they submit all of who they are to the Lord and change from the inside out." 

>Quote taken from http://www.daniel-fast.com.