Greetings, I started my last Master-Cleanse while i was sick with the flu. I drank a lot of fresh OJ for 2 days before I began with the lemonade. The lemonade made me feel better, although it seems the duration of the flu was longer then usual for me. I felt ill for about a week while on the MC. Now (day 10) i feel much better. One thing that really made my throat feel better was mixing up the lemonade with boiling water and drinking it hot (not recommended to do all the time though as it will kill good enzymes in the fruit) I find eliminating food when I become sick is very benificial in breaking the cold. Think it's because energy that you body normally uses to digest food can now be focused elsewhere to the immune system.