What you will want to do is to change your eating habits and eliminate carbs from your diet for the 5 day period. You will want to eat only lean meats and vegetables because this will allow your body to detox and clean anything that is impure out of it. Next you will want to increase your water intake because this also will increase your weight loss as well as clean your body.
When you are eating your meals you will want to split them up into smaller meals and eat them more often during the day. This will help to increase your metabolism and this will help to burn fat cells. It is important that along with a increase in water and to alter your food habits you need to add some aerobic workout to your daily routine. You might want to add a 45 min walk twice a day.
It is very important that the during the 5 day period that you stick with the diet and after about 2 days your body will start to get more used to the way you are eating. As always when trying a new diet you must find something that fits your lifestyle and that you feel comfortable that you can stick with.