FASTING means NOT eating
Somebody should have told that to the guy. If you're juicing, then you're eating a liquid diet. Lots of bodybuilders have done it to lose weight, not with veggies but with whey protein and that kind of stuff. It still is NOT fasting.
I want more info about what he's eating, the number of calories for instance. I think at some point he refers to beans. Now if you're adding beans and what not to your vegetable/fruits juicing, it's called a low calorie vegetarian diet, not fasting!!!