Your digestive system is designed to go without food.  Your sympathetic nervous system is able to deal with it.  Fasting promotes energy burn of reserves.  Fasting allows gut bacteria to work on their neighborhoods vs focus on digesting food all the time.  Bacteria get worn out easily so fasting allows them to store nutrients and proliferate, it’s like a vacation for the gut bugs.  Our gut lining turns over every 3-4 days so why not fast a few days a month to let it reset.  Doc J breaks down how fasting resets your gut and immune system while preventing disease, helps you manage stress and increases longevity.