splash
If this is your 1st fast 7 days is a great start. Obviously the longer you give your body a chance to detox the better your results will be. If you have to stop more important is the 2 Days of fresh squeezed OJ to prepare your stomache for food and the soup.
Coming off your fast it is crucial to eat right so you don't put addtional stress on the clean body you just created. If you can't drink OJ all day because of flying drink water until you can get the juice.
Good Luck!