This article you posted does not tell us a lot. It would have been very helpful to know the herbs they have prescribed, which the doc is not going to give up since it will be challenged and people will do it on their own, he would lose his clients.
Also the article does not tell you what kind of illnesses or condition her body was in prior to the fast and after. We don't know what her starting weight was and post fast weight was, either. I would love to see her simple blood and urine tests. I am sure she had some benefits from fasting but we do not know what was compromised.
As per true fasting rules that is starvation. You are eating partially, and your body uses all nutritional reserves to digest and be in balance, vs. to water only fast body starts using fats, scar tissues and other junk to function, and the most important part is that uses all its energy to heal and clean. Digestion uses the most energy in bodily functions.
Dr. Goldhammer and Dr. Furhman would have fights with Dr. Liu if they met and discussed this protocol.
Enh! If someone wants to lose weight fast this may be a way, but I would still just fast with water only to lose same amount of weight in two weeks.