The fungus & bacteria(bugs) that inhabit your digestive system actually live off the junk food, so when you eat the junk initially you feel good. Your bugs are happy because you are feeding them what they need to grow strong and thrive and get bigger. When you withdraw the junk the bacteria, fungus or whatever it maybe, is denied what it wants and it lets you know by making you feel terrible. The bugs cannot use the healthy food to live as well as the junk food. With the healthy food your body can fight off and kill the bugs which is called die-off or maybe just another on-going battle.

The bugs use up the nutrients that you intended for yourself which is why u need to get rid of them.