The Lemonade Diet is a juice fast with the fructose replaced with another sweetener. One could easily do a grape juice diet with the same amount of lemnon added and in my humble opinion receive at least if not more beneficial results since the sweetner would be even richer in phytochemicals and far closer to a natural substance. And it is delicious, I've done it many times.
I think if there was an openess to alternatives, the interest would pick up.
However, there is so much controversy, I wonder if subheadings of juice/broth diets and Water Fasting could be added so people could discuss these items among a separate group of people who are more interested in alternatives to the lemonade?