We know that the nervous system controls the functions of every tissue, organ nad system in the body.
Chiropractic concerns itself with the relationship between structure ( primarily the spine ) and function (primarily coordinated by the nervous system ) of the human body, and how that relationship affects the restoration and preservation of health.
Vitamin D3 for immune boost 
If is often helpful to give the body a break from it's normal processing of complex or processed foods, there are many ways to cleanse.