Katona you have done fine for your first day, it can be hard to get into the swing of it to start with. I tend to eat as much salad and veg as I can to fill myself up without loading on the calories. Unlike VLCDs you don't get used to the low intake, that is why the diet works well because you don't adapt. You still benefit from the VLCD strategy of drinking when you are hungry. Enjoy your up day tomorrow.
Fuzzy's Angel, I've been doing this for two and a half weeks now and reckon I am losing a pound and a half a week. I love it, as do some of the others on this forum. But it really doesn't seem to suit some people, they go out of control on the up days, or can't take the constant weight fluctuations, or expect a magical result. For me the plus points outweigh the minus ones massively - I adapt too easily to other diets and stop losing, JUDDD allows me to eat normally every other day so I can fit around social events, JUDDD is making me learn that I can have treats but not all the time. I have tons of energy too. That said, I have only half a stone to lose now so I don't have to diet for too long, but will use JUDDD for maintenance when the weight has gone.