No.

This keeps your digestive system awake and keeps you hungry.

If you go two days on water only, your digestive system will begin to hibernate and you will not be hungry. During this time your body will begin to break down damaged cells and begin healing you from inside.

It is common to be nauseous and feel a little sick around the fourth or fifth day of a water fast. Do not be scared, this happens when your body is breaking down cells that contain poisons that we have consumed in our water, food, and air. These poisons, including concentrated DDT, are released into the blood stream, and until they are transferred out of your body you might feel sick... but this is a good thing because your system is getting the poisons out of your body!

When you are on a water fast, you will notice you actually have more energy! This is because your body is not using energy to digest and process food; instead it is breaking down fat and using the stored energy to fuel the system repair process. It is an amazing feeling!

However, be warned that your stamina will be low because you are running off fat cell energy and your body breaks it down as needed. So don't run any marathons while on a fast and everything will be great.