It depends on the severity and type of symptoms you are experiencing, as well as how many root causes you are dealing with.  However, most people will notice some improvement in the first 60 – 90 days with more measurable improvements after that.  When someone has been suffering for years it’s important to understand that it took years for them to get to that point and it can take some time to eliminate the root causes so the body can start healing itself and feeling better.