I understand your point. My Water Fast supervised by a physician, and when it gets to "danger point" I will simply stop. My re feeding has been strictly planned and I know what I haveto do tokeep the weight off. In my opinion it is the best way to start weight loss.

Medical supervision mitigates the danger. Also depending on how much body fat the person is carrying, 50 days is probably okay. I'd leave it up to the doc.

People do crazier things than fasting to lose weight. Many people are motivated to continue dieting after a fast because of the quick weight loss.

Juice fasting sounds like pre-diabetes waiting to happen. Seems like it could also trigger toxic hunger for food in some people.