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Functional Diagnostic Nutrition

41 reviews

5.041 reviews
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About Functional Diagnostic Nutrition

Data updated
Website
functionaldiagnosticnutrition.com
Category
Hobbies & Crafts
Location
United States · Henderson
Status
Unclaimed
Last 12 months
2 reviews
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Is Functional Diagnostic Nutrition legit?

Functional Diagnostic Nutrition (functionaldiagnosticnutrition.com) has a 5.0 out of 5 rating on OK.one, based on 41 user reviews collected here. It is listed under Hobbies & Crafts and its reputation is excellent. Praise is nearly unanimous, with 100% rating it 4 stars or higher; 2 of them were added in the last 12 months. Last updated 2026-08-10.

What people say

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Dena Newkirk · 3 reviews · Experienced 2026-05-16 ·

Amazing system of finding hidden…

Amazing system of finding hidden dysfunctions and creating protocols for health. I love that they test and don't guess. It's a wonderful program🙏

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Lori cui · 1 review · Experienced 2026-01-19 ·

educational

thorough, connected, tied systems/labs together with thorough explanation, Detective Ev always a pleasure

Reply from Functional Diagnostic Nutrition2026-01-29

Thank you Lori! We're glad you could attend one of our live events!

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Dr Lt Sagi Kalev · 1 review · Experienced 2022-12-12 ·

My Name is Dr Lt Sagi Kalev,

My Name is Dr Lt Sagi Kalev and FDN is truly one off a KIND!!!! FDN -P was and after 14 years is still my to go to program. I joined FDN on Mr Reed Davis second class and from the start I knew that Mr Reed didn't create the course for the money but only to make health provider's like myself BETTER!!! As a Veteran my word is my VALOR and no matter if you are an MD- DO-ND- NMD- NP- PA extra you will be amazed how your outlook at healing and helping your patient's :)... You will be their Hero for a life time. I have Graduated from 3 Universities..on top of IFM- A4M- UFM,,,, EVERY single time I get asked " how are you so well rounded and what did you do to get there?... FDN program is a NO Brainer.

Reply from Functional Diagnostic Nutrition2025-11-25

Dr. Kalev, we are incredibly honored by your words and your service. To hear that FDN remains your "go-to" foundation after 14 years—and alongside such impressive credentials—is exactly why Reed started this mission. Thank you for being such a valued part of our history and community!

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JoAnne · 1 review · Verified · Experienced 2022-06-11 ·

No Regrets!

From the first module I listened and learned from I knew this was the right place for me! As a health and wellness coach I wanted a way to offer testing for my clients! Learning that testing and not guessing is the motto at FDN! I not only learned the the why but the why and what to do for my clients! Quality thru and thru from the material, to the support and the likeminded people I met. Get started today, you won’t regret it for a second!

Reply from Functional Diagnostic Nutrition2025-11-25

We love hearing this! "Test, don't guess" is truly the heartbeat of what we do. It is fantastic to know that the curriculum and community gave you exactly what you needed to level up your coaching practice. We are so glad you found your tribe here!

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Kevin · 1 review · Verified · Experienced 2023-05-02 ·

Simply the best

Simply the best, attention to detail, and always updating key information. Attention to detail and caring for FDN clients is the blueprint for how we all should care for our clients.

Reply from Functional Diagnostic Nutrition2025-11-25

Thank you for noticing the details! We work hard to ensure our curriculum evolves with the science because we want you to have the absolute best tools for your clients. We are honored to provide that blueprint for your practice.

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Laura Burns · 3 reviews · Experienced 2023-04-27 ·

Certification Far Exceeded My Expectations Plus Continued Education Opportunities

The FDN Certification was everything I didn't know I needed. I set out to get a certification to further my work as a practitioner and I got so much more than I could have imagined, including a supportive community, continuous learning opportunities, and the knowledge and tools to truly make a difference in the lives of others on their health rebuilding journeys. I would recommend FDN time and time again to those who are looking to get into or further their career in the health space.

Reply from Functional Diagnostic Nutrition2025-11-25

"Everything I didn't know I needed" is such a wonderful compliment! We’re thrilled that the community and ongoing education have been just as valuable to you as the core curriculum. Thank you for recommending us to future practitioners—we’re lucky to have you with us!

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Anita Ray Ng, BA, FDN-P · 1 review · Verified · Experienced 2023-04-26 ·

Grateful for the FDN Certification Program & Membership

I learned about the FDN program several years ago, during a time when I was struggling with many unexplained physical and mental health issues. I had seen many doctors and tried a lot of things, but I was not getting enough relief. I liked the FDN concept of investigating the actual underlying reasons why I wasn't feeling great so that I could do something about it. By completing the FDN course and gaining access to functional lab work, I was able to identify the missing pieces and help myself and my family members to overcome different health challenges. I do not want others to struggle for as long as I did, so I started my own health coaching business. I now help children and adults naturally improve their mood, focus, and other brain-related problems, so that they can finally feel great, inside and out. The FDN staff and community have always been positive and helpful when I need advice. I'm grateful for my improved health and for the career opportunities that the FDN certification course has provided me.

Reply from Functional Diagnostic Nutrition2025-11-25

Hearing how you turned your own health challenges into a mission to help families and children is inspiring. We are honored that the FDN framework gave you the answers you needed to heal and the tools to build such an impactful business. Thank you for being part of our community!

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Shiri · 1 review · Verified · Experienced 2022-05-01 ·

Loved FDN

FDN is a comprehensive program that delivers high value, a beautiful community, ongoing extensive training, and amazing support. I highly recommend it to any person or practitioner who wants to gain the knowledge of how to help people with solutions that actually work.

Reply from Functional Diagnostic Nutrition2025-11-25

We are so grateful for your recommendation! Providing "solutions that actually work" is exactly what drives us. It is wonderful to hear that you felt supported by our community and training every step of the way.

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Jennifer Lanie · 1 review · Experienced 2023-04-26 ·

FDN will change your life and allow you to help others do the same!

I considered many options when I was looking to get certified in health coaching/functional wellness and I'm so glad I chose FDN. As a former educator I can say that I'm truly impressed with the content format, multi-modal delivery and support I had every step of the way through the course. Plus the opportunity to participate in the same functional labs I was learning about helped me not only better understand the material, but also helped me radically improve my own health. The knowledge and tools I acquired have allowed me to feel confident working with complex clients right out of the gate. Plus, as a practicing FDN there are ongoing learning opportunities and a supportive community. If you are considering FDN my advice is "go for it," you won't be disappointed!

Reply from Functional Diagnostic Nutrition2025-11-25

Coming from an educator, your praise for our curriculum structure means the world to us! It is wonderful to hear that running the labs on yourself gave you the confidence to handle complex cases right out of the gate. We are so glad you chose FDN!

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Maddy · 1 review · Experienced 2023-04-12 ·

FDN shifted my paradigm on health

Functional Diagnostic Nutrition shifted my paradigm on what health means! Growing up I have always believed that Western Medicine knew everything and that everything outside of it was voodoo. But as I got older and started hearing about how much that system failed people, I began to look elsewhere. I found the Health Detective Podcast, and my world shifted! The stories, what seemed to be miracles, inspired me and gave me hope that I could help others heal as well. The course is absolutely brilliant, and I love that it's self-paced. I wish there were more practical work, or "homework" to guided our learning throughout the modules. Like for every module, have a small assignment or worksheet to fill out :)

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Tisha · 1 review · Verified · Experienced 2022-04-24 ·

FDN's Training and Mentors

When I went thru the FDN course it was a place to be able to learn, grow and connect with like minded people. We became a community. I loved the knowledge, skills, and training that I received. The best part was being mentored by Tess Hanke and Brandon Molle. They were inspiring, kind, helpful and knowledgeable willing to help bring out the Health Coach in me.... I loved being connected with people of this caliber...

Reply from Functional Diagnostic Nutrition2025-11-25

It is amazing to hear how the Health Detective Podcast sparked that paradigm shift for you! We are so glad you found hope (and a new path) here. Also, we really appreciate your feedback on adding more practical assignments to the modules—we are always looking for ways to make the learning experience even better. Thank you for being part of the movement!

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Valerie L · 3 reviews · Experienced 2023-04-20 ·

I loved my program!

I loved my program: it was very comprehensive; there was tremendous support and extra learning such as Study Hour and Hot Topics every week. I graduated several weeks ago and feel very confident in sharing my knowledge with my clients. The practicals and reviews with my mentors helped me solidify my knowledge, walk the walk, speak about the screening and the FDN approach confidently and learn even more. My mentors were motivating, friendly and knowledgeable. Not only did I learn to help others stay well naturally, I also learned more about my own health in that I was able to do all the lab screenings on myself first. I loved this hands-on experience! I haven't seen this in any other program that I looked at before deciding to join FDN. I am eager to advance my studies by taking their advanced courses in the future. I also joined AFDNP which is a membership program after we graduate to further our education--not to mention all the other great perks. Thank you again for such a wonderful program. Proud to be a new FDN-P!

Reply from Functional Diagnostic Nutrition2025-11-25

We are so proud to welcome you as a new FDN-P! It is fantastic to hear that the practicals and mentorship gave you the confidence to truly "walk the walk." That hands-on experience of running the labs on yourself really makes all the difference. We are thrilled you are continuing the journey with us in AFDNP!

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Clarissa · 1 review · Verified · Experienced 2022-04-21 ·

FDN has changed my life

FDN has changed my life and has helped me change the lives of others. This program is like no other out there and it works. Getting to know your body is one of the greatest things you can do in the journey of life.

Reply from Functional Diagnostic Nutrition2025-11-25

Hearing that FDN changed the trajectory of your health, career, and community is the ultimate compliment. We love that you highlighted the value of "being your own first client"—it truly is the best way to master the process. Thank you for your kind words about Reed and for contributing to the kindness of this community!

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Kim Del Castillo · 1 review · Experienced 2022-12-31 ·

Changed the trajectory of my health, career and community

FDN has made all of the difference in my health, my career and my community. First and foremost, FDN gave me a repeatable process to find solutions to my health and to benefit my clients. We have so many tools and resources provided. As a graduate of the course, I continue to receive benefits. The extra training, the "unmasked" guest speakers, the weekly calls and recordings available, Affiliate program (amazing platform for communicating with colleagues and a place to get more support), and there is so much more. During the course, we get to be our "first client." As part of the enrollment, we receive labs and we get our own results and recommendation calls with a mentor, so we get to experience how to help others first-hand. We learn the flow of the call and then get many opportunities to hone our skill set in the form of practicals- mock clients that we develop a protocol for and are tested on our ability to help. Lastly, but not at all the least important, I have made lifelong friends and formed community with other like-minded people whom I can look to for support and advice in my personal life and professionally. FDN seems to appeal to kind and helpful individuals that really want others to succeed. I think that draw has a lot to do with the nature of our founder, Reed Davis- who also loves to see us all succeed.

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Stephanie Miranda · 1 review · Experienced 2023-01-18 ·

This program has been amazing!!

This program has been amazing! I loved that it was self paced and had mentor sessions! I really appreciated the hands on application with self testing and practicals. I just graduated and already have my first couple clients! They are complex cases and I feel confident I can truly help them!

Reply from Functional Diagnostic Nutrition2025-11-25

Congratulations on graduating and quickly landing your first clients! That is a huge milestone. We designed the mentorship and practicals specifically to build that confidence for complex cases, so it is thrilling to see it paying off for you immediately. We are cheering you on!

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Angela · 1 review · Verified · Experienced 2023-04-18 ·

Finding FDN was an answer to prayers

Finding FDN was an answer to prayers. I chose to take the course to improve my own health, but along the way I realised I could help so many other people. FDN helped me to find answers to health problems that I had been seeking for years. I have greatly reduced dosages for two prescription medications and am becoming stronger every day. I most recently reviewed an organic acids test with a mentor, and have found, what I hope is, one of the biggest pieces to my health puzzle. Based on what the mentor told me, I am now putting steps in place to improve in this area. The testing is what makes this program unique. It’s amazing to get the big picture view of what your health is and be able to set actionable steps to improve on it. Working with an FDN practitioner allows you to take control of your health.

Reply from Functional Diagnostic Nutrition2025-11-25

"Answer to prayers" is such a powerful sentiment—thank you. We are absolutely thrilled to hear about your progress in reducing medications and finding those missing puzzle pieces through the Organic Acids test. It is an honor to have played a part in your healing journey!

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Lori · 1 review · Verified · Experienced 2023-04-19 ·

Good support and quick

Reply from Functional Diagnostic Nutrition2025-11-25

Thanks Lori! We'll try to be quicker with these review replys in the future 😅

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Grazia · 2 reviews · Verified · Experienced 2022-08-08 ·

The FDN-P course is a must for every health practitioner

The FDN-P course is very comprehensive and detailed. I don't think there is a comparable course to ours. Reed and the fantastic team provide a lot of support and help. Once one certifies from the initial course can continue their education and further deepen their knowledge with the advanced courses. I had several health issues which I was able to resolve thanks to what I've learned from the FDN courses. It's an absolute for health practitioners.

Reply from Functional Diagnostic Nutrition2025-11-25

Hearing that you were able to resolve your own health issues using the FDN framework is the best testimony we could ask for! Thank you for the kind words about Reed and the team—we agree that the learning never stops, and we look forward to seeing you in the advanced courses.

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Tracy · 1 review · Verified · Experienced 2023-04-16 ·

I have been able to resolve a lot of nagging health issues

I have been able to resolve a lot of physical and even mental issues I have dealt with for years using the methods I learned through FDN. They are a tremendous resource for healthy lifestyle guidance and functional lab analysis. I'm so thankful I found FDN!

Reply from Functional Diagnostic Nutrition2025-11-25

Resolving "nagging" issues that have persisted for years is a massive victory, especially when it covers both physical and mental well-being. We are so glad the FDN methods and lab analysis provided the roadmap you needed to finally find relief!

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Bella · 1 review · Verified · Experienced 2023-04-12 ·

The training I needed to heal myself and help my clients

FDN provided me with the foundation I needed to heal myself back in 2014. Now I use FDN principles as the foundation on which I run my gut health clinic. The network of practitioners and support that this community provides is phenomenal. I am so grateful to be a part of this community.