I enrolled in the Institute for Integrative Nutrition in 2011 and have graduated. But it didn't live up to my expectations so I am sharing the good and bad with you.
Good: They share many diet theories, you get a health coach, they offer a good community and support for the students and best of all they give you great information and tools on starting your business...some of the best I've heard. And, yes, I feel more informed about health and nutrition. Not so good: The tuition is NOT tax deductible. You basically listen to diet theories that go from the healthy to the bizarre.
No text book. Not much teaching on how to counsel people. The tests are so easy that anyone can be a health coach so that means a complete wacko can graduate and be giving advice to innocent people. And the reality is if you are not a dietitian then you really are only qualified as , what I call, an accountability coach upon graduation.
They do not suggest you coach people with serious health problems.
Note: Check with your state to see if you can register your business as a health coach first. If not the school suggests registering as a life coach.