I am well aware of what professionals such as Dr. Shelton recommend.
Truly, I have done my research.
There are several reputable health experts that speak of Water Fasting and yet, guidelines vary amongst them.
At the end of the day, a well-rounded individual gathers all the information from the research in question, combines it with his/her intuition, and can then make an educated and personalized decision.
Nobody knows what's best for you better than you, especially if you're sensitive enough to feel and to hear your gut.