Anyone have experience with Functional Diagnostic Nutrition (FDN)?

Answered on February 14, 2015
Created January 02, 2013 at 12:57 AM

I'm interested to hear from people who have taken the FDN training and are practitioners and also from clients of FDN practitioners.

I'm particularly interested to know three things:

  1. Is their framework Paleo friendly? E.g. would an FDN practitioner tell you that a cholesterol reading beyond 200 is too high and that you should cut out saturated fats?

  2. Their diagnostic data, if I'm understanding their web-site correctly, focuses on urine and saliva tests for investigating a large array of illnesses. Aren't there things that only blood tests can assess? Can cholesterol be measured other than through a blood test? What about vitamin D levels?

  3. If you've been a client of FDN, what has your experience of it been?

And, if you're a practitioner and would be willing to share your experience with certification and working with the system, please contact me through the email in the About page of my blog that my profile page points to.



on January 03, 2013
at 11:52 PM

Good question. I was about to ask it myself!



on January 03, 2013
at 09:37 PM

Amy, I've been researching that question. If you want to contact me via the About page on my blog, linked to in my profile page, then I'll share more with you.



on January 02, 2013
at 05:01 PM

I'm thinking about doing the FDN course sometime in the future, but I'm still not sure about the legalities...I mean, even if FDN teaches me how to interpret test results and what kind of food/supplements to employ as therapy, as a "nutritionist," I'm not sure if I can order a lot of those tests for clients myself or if I'm still sort of beholden to the docs...



on January 02, 2013
at 05:00 PM

Not exactly sure. I know they do a lot of dietary evaluation (via specialized software) and they have an extremely thorough/extensive questionnaire re: symptoms. I don't know how much they get into testing though. I'm not sure if the NTP designation "allows" anyone to order tests...like anyone who's not an MD or other licensed professional, they probably still have to tell a client to have a doctor order the tests, but can then sit down with the client to help interpret the results and design a plan. I would recommend emailing or calling the NTA for info if you have specific questions.



on January 02, 2013
at 02:52 AM

Amy? How does the NTA program help practitioners to identify the root cause of issues? That's my interest in FDN.



on January 02, 2013
at 01:08 AM

And no, I don't think the NTA would ever tell anyone to cut out saturated fat. =)



on January 02, 2013
at 01:07 AM

It's a jungle out there. Have you looked into the NTA? They're not "Paleo," but they have a strong Weston Price/Pottenger influence. It's more $$ than the FDN training but it looks like their stuff is pretty great. I'm starting in Feb! http://nutritionaltherapy.com/



on January 02, 2013
at 01:05 AM

Great question! I contacted several FDNs (through the FDN website...you can find people who are certified), and the reviews were mixed. Some thought the training was incredible, others not so much. Not sure about the testing...urine and saliva are good for certain tests, but the laws are so iffy as to who can order different tests if you're not an MD.

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5 Answers



on January 02, 2013
at 07:21 PM

I don't know about FDA, but I do have the functional medicine textbook (this one https://www.functionalmedicine.org/listing_detail.aspx?id=2415&cid=0 ).

  1. It can be paleo friendly. Functional medicine is ever evolving. Paleo is like an elimination diet in this framework and depending on some of the test results.

  2. Dunno about FDN but when your talking functional medicine (which I'm assuming is the same framework) most tests are not covered by insurance. There are two ways of getting the testing done. ONE: If you are within your legal right as a health professional in your state to diagnose and order tests (MD, DC, DO...ect.) TWO: You can have tell the patient which tests to get and they can procure them through something like this http://www.directlabs.com/


on February 14, 2015
at 03:15 AM

Ok, this my third time trying to post something, and something keeps happening. My first two responses were awesome. This one is brief. :-| I'm an FDN and can't speak highly enough about it. If you are still looking for answers on this, feel free to hit me up at Aaron at Perfect Health Project dot com


on December 29, 2013
at 08:08 PM

hi my name is Rick Gold and I'm a certified FDN. I can tell you that FDN IS very paleo friendly. I've been a paleo/ketogenic lifestyle for over 4 years now. Is be happy to answer any questions you have about FDN.

you can read more about what I do and subscribe to my free Health blog on my website: www.goldfunctionalwellness.com

Happy holidays!


on May 02, 2013
at 12:02 AM

After watching some of their webinars promoted through Paleo Hacks, I found a local Clinical Nutritionist who is part of the FDN network. Had a good first conversation - and having food sensitivity testing done... waiting for results. You might be interested in the watching the webinar:



on May 01, 2013
at 07:31 PM

I am an RHN and have been tossing around the idea of adding the FDN to my training. I am a strong Paleo/Primal proponent, and don't plan on changing those views without some very, VERY convincing evidence. After all, Paleo/Primal are merely templates and can be varied as needed.

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