The National Exercise & Sports Trainers Association (NESTA) is a for-profit corporation founded in 1992 and offers a wide range of fitness and sports certifications and endorsements.  Their Professional Fitness Trainer program is accredited by the National Commission For Certifying Agencies (NCCA)

The Fitness Nutrition Coach is a titling program rather than a true certification.  Participants can use the FNC title after completing the program, but this title is neither restricted or trademarked by NESTA.  This home study program is based on a single textbook, takes approximately four weeks to complete, and does not require recertification.  The program is marketed as preparing students for additional income and business opportunities.

The FNC program is an acceptable professional education course delivered by a respected organization.  However, given the limited scope, no professional support, and lack of ongoing educational requirements, the award of a title  is unwarrented.