Using a Facebook Group to market can be very profitable and rewarding when done properly.

In the health industry, you must be willing to teach and educate.  When you teach and educate, it helps to build trust.  Most people do not take free advise.  If they do, great!  Then you helped a person.  What happens more often than not is people will become interested in working with you because they will believe that you know how to help them.  People that are struggling with chronic symptoms and want help, really want to work with someone that they believe knows how to help them reach their goals.