Thanks for inquiring about the Daniel Fast. It is a great way of spiritual strengthening and endurance.
The Daniel Fast is a biblically based partial fast. It is a method of fasting that men, women and young people all over the world are using as they enter into the spiritual discipline of prayer and fasting.
There are two anchoring scriptures for the Daniel Fast. In Daniel 1 the Prophet ate only vegetables (that would have included fruits) and drank only water. So from these scriptures we get two of the guidelines for the fast:
1. Only fruits and vegetables 2. Only water for a beverage
Then in Daniel 10 we read that the Prophet ate no meat nor any precious breads or foods and he drank no wine for 21 days. So from this scripture, we get a third guideline:
3. No sweeteners and no breads
Another important guideline is drawn from Jewish fasting principles, where no leaven is used during the fast. So that's why yeast, baking powder and the like are not allowed on the Daniel Fast.
Finally, with all the above puzzle pieces, we conclude that no artificial or processed foods nor any chemicals are allowed on the Daniel Fast. All natural foods and lots of water.
Be sure to read the ingredients on labels of prepared foods to make sure they only include Daniel Fast friendly ingredients.
If there are heath challenges present in the body, it is suggested that one see their physician to make sure this fast is appropriate for them.