My wife does a great job getting lean when she wants to. Her 6 pack is crazy right now. However, she has only been able to do this when working with a nutritionist. Of course she has picked up a few things while working with them, but she really wants to learn for herself. She is a teacher and a type a personality so just studying/learning without some kind of certification leaves her unsatisfied.
Can anyone recommend any kind of nutrition program/certification? Again, she will not be interested in anything that does not require some kind of test so please don't recommend just reading a book or the internet. Thanks.