Do you only drink juice while on a fast? No snacks?

Yes, only juice. One of the biggest reason to do a juice fast is to allow the digestive system to “take a nap”. When you extract juice from fruits and vegetables, it is then that it’s at its easiest form to digest. This allows the body to take the energy that it would normally use for digestion and put it towards detoxing and purifying the body. When you add “snacks” in this requires the digestive system to wake up from its nap and work again.