I've been off the 'fast', as they call it, for about 2 months now. As long as you follow the rules it's not a problem. The program encourages taking Actigal to ensure a healthy gall bladder. Things like fats and 'empty' carbs are already taboo. No one in my group had any problems. Of course, I know of 2 other people; one celebrated with a dozen Krispy Kreme donuts, the other with a 16 ounce steak. Both ended up in the emergency room.