However it can be unhealthy, if not done safely.
In this instructables I will explain how to prepare for a fast, how to fast, and who shouldn't fast.
Step 1: Preparation
A good idea is to write down all the instructions for your fast and organize a plan and schedule on paper before you begin. This is important because once the fast begins, you might try to convince yourself to quit. The schedule can then act as a contract you have made with the fast that you must keep. Remind youself why you are doing the fast and remember that it is important.
It is also important to quite your addictions in the days prior to your fast. Cut down on caffeine, salt, sugar etc. If you stop eating them off all of a sudden, you may experience cravings, headaches, stomachaches and a overall feeling of discomfort
Prior to your fast, start eating smaller meals and drinking lots of water.. Cutting down your meals a few days before prepares your mind, stomach, and appetite for the fast. On the day before your fast eat small meals every 2 hours, and resist the temptation to eat a big meal the night before the fast
The last meal before the fast eat high carbohydrate and low salt foods.
Sit down for the final meal before the fast at least an hour before the fast begins so there is no rush to eat quickly. Make sure not eat too much in the meal, but drink plenty of water.
Leave time after the meal and before the fast to drink warm water with sugar.