The nutrition certification is very good. It covers everything. I took that exam a while ago and just took the Master program which was much more difficult. As far as working for them once you are certified, I don't think that part is true. You have to first get hired and go through an interview process. They are not going to hire you just because you passed the exam. The ad on CareerBuilder is clear about the hiring process. I would image there are a lot of people applying for that job and I'm sure they will pick only those people who score well. If you barely pass the exam, you probably won't get an interview.