Then I'm afraid Ayurveda is misinformed about juice-feasting and/or water-only fasting, and despite it being a well-documented/respected system of healthcare.
Ayurveda does not advocate abstaining from food or water for extended periods of time because they believe it depletes bodily tissues, leading to doshic imbalance and despite the evidence to the contrary.
Feel free to ask more questions on the forum and do some research of your own, and you will discover just how beneficial water-only-fasting really is.
Try this one................. http://fasting.ygoy.com/benefits-of-water-fasting/