WHY TAKE THE FDN COURSE?
WHY CHOOSE FDN CERTIFICATION COURSE?

Increase Your Income
Use your FDN skills and our complete methodology to help people on a deeper level to achieve long-lasting results leading to effortless and endless client referrals for you and your business.

Enhance Your Credibility
FDN is an accredited program, the most trusted and well recognized brand with the longest history of training health coaches, professionals and health-minded people like you in the functional health industry.

Connect With The Community
Be part of a community consisting of over 3,000 FDN trainees in over 50 different countries and tap into the collective knowledge of the community.

Accelerate Education
Learn at your own pace with our 100% online and self-paced 14-module training program full of educational videos, actionable items, practical application and 1:1 mentoring.

Access Lab Testing
Learn how to interpret functional lab tests, how to use the data to drive holistic lifestyle recommendations, and get access to lab tests for you and your clients.

Learn More!
Get all the details you need to succeed and learn more about the FDN Certification Course now! Click the button below to enroll in the course, or contact us for more information.
take the course tour
Access this free virtual tour of the Functional Diagnostic Nutrition Course.
Walk through the online student portal, unpack what students can expect upon enrollment through to graduation and beyond, and answer common questions potential students have about the program.
FROM OUR FOUNDER – REED DAVIS
FROM OUR FOUNDER – REED DAVIS
Over 20 years ago, I recognized clients were caught in a “cycle of trial and error” and I committed to being the last person they needed to see. While working with top leaders in alternative medicine, I ran thousands of labs on thousands of people and learned to identify “healing opportunities.” Using all-natural, drug-free protocols I made my own observations about who got better and who didn’t, codifying which “general principles of health building” would outperform “specific treatments” being provided by standard and even alternative medicine.
And through this work I then developed the Functional Diagnostic Nutrition Certification Course and D.R.E.S.S. for Health Success
Protocol to educate and empower as many people as possible to get well and stay well naturally, so they, in turn, may empower others to do the same.
Over 20 years ago, I recognized clients were caught in a “cycle of trial and error” and I committed to being the last person they needed to see. While working with top leaders in alternative medicine, I ran thousands of labs on thousands of people and learned to identify “healing opportunities.” Using all-natural, drug-free protocols I made my own observations about who got better and who didn’t, codifying which “general principles of health building” would outperform “specific treatments” being provided by standard and even alternative medicine.
And through this work I then developed the Functional Diagnostic Nutrition Certification Course and D.R.E.S.S. for Health Success
Protocol to educate and empower as many people as possible to get well and stay well naturally, so they, in turn, may empower others to do the same.
WHAT IS FDN?
Functional Diagnostic Nutrition® (FDN) is a methodology used to recover and maintain the best health possible. We investigate underlying causes of unwanted conditions including lifestyle, the environment and individual weak links in metabolism.
Whether you are a seasoned health professional continuing education, or someone looking for a career change, FDN and the FDN Certification Course will exceed your expectations in many ways.


Get Certified in as little as 6 Months

Earn Over $200 Per Hour

Expert & Mentor Support Provided

100% Online & Self-Paced Course

No Prerequisites Are Required

Test Yourself & Your Clients
THE FDN MISSION
At Functional Diagnostic Nutrition, we know you want to help people on a deeper level, elevate your own health and get your hands on the right tools and resources to do so.
FDN’s mission is to educate as many people as possible, like you, about how to get well and stay well naturally so you can in turn educate and empower others to do the same. We will provide you with the cutting-edge functional lab assessment training and access to resources to continuously enhance your knowledge about functional health practices, so you can actually fix the health issues you or your clients are facing, and build a successful career doing what you love while positively impacting others.
FDN empowers anyone who has a strong desire to help others, who is willing to walk the talk, and who aspires to have a career changing people’s lives.
FDN Practitioner Spotlight

Applying FDN in my life has help me be 10 years skin cancer free, manage Hashimotos naturally and successfully recover from mold illness. Being an FDN Practitioner allows me to help others around the world also find the missing pieces of their health puzzle so they can get back to feeling like themselves again too.
– Jenn Malecha, San Diego, CA

FDN gave me the confidence to implement new teachings in my business immediately, and it has helped me grow personally and professionally in so many ways. As an IIN graduate and health coach I felt I could help more individuals if I could dig deeper, and FDN has given me the tools to do that!
– Deb Pomeroy, St. Charles, IL

As an FDN practitioner’s client, I saw how quickly the approach helped me get to the root of my health issue despite doctors saying there wasn’t one. Have being a client, I knew I had to take my IIN education to the next level and become a FDN to help others like me.
– Kristin Thomas Boston, MA
ENHANCE YOUR CREDIBILITY AND BECOME BOARD CERTIFIED





Functional Diagnostic Nutrition is an accredited training program and FDN graduates are eligible to sit for several board exams:
ENHANCE YOUR CREDIBILITY AND BECOME BOARD CERTIFIED





Functional Diagnostic Nutrition is an accredited training program and FDN graduates are eligible to sit for several board exams:
- American Natural Wellness Coaches Board (ANWCB)
- FDN graduates are eligible to sit for the American Association of Natural Wellness Coaches board exam
- FDN Practitioners with a previously held degree in Naturopathy are also eligible to sit for the ANWPB board exam.
- Additionally, FDN graduates can become a licensed practitioner through the Guardian Ecclesiastical Medical Association (GEMA).
- Board certification through the American Association of Drugless Practitioners (AADP) is another option available to graduates as well.
- American Natural Wellness Coaches Board (ANWCB)
- FDN graduates are eligible to sit for the American Association of Natural Wellness Coaches board exam
- FDN Practitioners with a previously held degree in Naturopathy are also eligible to sit for the ANWPB board exam.
- Additionally, FDN graduates can become a licensed practitioner through the Guardian Ecclesiastical Medical Association (GEMA).
- Board certification through the American Association of Drugless Practitioners (AADP) is another option available to graduates as well.
These organizations are dedicated to promoting an enhanced professional image and prestige among health coaches and practitioners of traditional and non-traditional therapies and methodologies. Board Certification is a voluntary designation that demonstrates one’s professional competence and dedication. It validates the qualifications of a professional in a respective field of study.
Frequently Asked Questions
The FDN Certification course is self-paced and trainees are granted up to one year to complete all course requirements to graduate. A reasonable time frame to get through the course is about 6-8 months. Therefore, a one-year time limit gives trainees plenty of time to complete their FDN certification. It is up to the trainee and what works with their schedule. The curriculum provided with the course serves as an outline to complete the course within 6-8 months. We’re here to help you succeed!
No. The FDN Course has no pre-requisites and is open to anyone looking to expand upon their current credentials, change careers and work on their own personal health.
Yes, we have many successful FDN Practitioners in England and Scotland, and also in Canada and Australia. We are in over 41 countries and adding more all the time.
Yes, unlicensed practitioners may access lab testing via our Medical Director Program (MDP). What is the FDN Medical Director Program (MDP)?
The Medical Director Program is a full-service lab-testing and clinical support program created so that unlicensed FDN Practitioners can practice FDN and access lab testing/screenings for themselves and their clients.
If you are an unlicensed provider working under our Lab Resource Agreement, we reserve the right to suspend lab privileges if you abandon the lessons and are making no progress.
If you are an unlicensed provider working under our Lab Resource Agreement, we reserve the right to suspend lab privileges if you abandon the lessons and are making no progress.
You will receive 5 functional lab screenings as part of your tuition. There is no cost to you. Personal test results sessions are also included and are considered an important part of becoming a certified FDN.
- Salivary Stress and Hormones Panel (checks cortisol, sex hormones, and melatonin)
- Dry Urine Metabolic Wellness Profile (assesses digestion/absorption, oxidative stress, and detoxification)
- Dry Blood Mucosal Barrier Assessment (assesses gut function)
- Pathogen Screening via Stool (screens for gut pathogens)
- Metabolic Typing Online assessment available mid-course
Your personal lab screening kits will be shipped to you after you have completed Module 1.
LATEST NEWS AND BLOGS

Science Matters #15: Microbiome Diversity Protects Against Pathogens by Nutrient Blocking w/ Reed Davis & Dr. Aron Gonshor
Microbiome Diversity: Summary This discussion starts with an overview of the concept that microbiome diversity protects against pathogens by nutrient blocking. The session takes a deep dive into recent studies surrounding the gut microbiota, emphasizing that a diverse community of commensal bacteria can collectively shield the human gut from disease-causing microorganisms by consuming nutrients that would otherwise be available to pathogens. This phenomenon is referred to as colonization resistance, indicating that a greater variety of gut bacteria can effectively outcompete pathogens for essential nutrients, thereby preventing their growth and colonization in the host body. The importance of ecological diversity and community composition in forming effective microbial defenses is highlighted, with particular emphasis on the role of key species within these diverse communities. Notably, individual bacterial species are less effective in blocking pathogens compared to when they function in diverse groups, particularly in combinations of up to 50 species—including E. coli—which

Episode 395 Decoding Pain: The Integration of FDN and Bodywork w/ Jennifer Lazar
Decoding Pain: Summary In this podcast episode, Jennifer Lazar, a seasoned massage therapist and FDN practitioner, discusses her extensive career and the vital realization that both physical and metabolic dysfunctions contribute to chronic pain. Jennifer shares her journey from a competitive gymnast suffering from intense pain to discovering the impact of metabolic health on physical well-being. She emphasizes the importance of diet and biochemistry in addressing chronic pain, highlighting her personal transition from an unhealthy vegan diet to a more balanced nutritional approach that significantly alleviated her symptoms. Evan, expresses his admiration for the demanding nature of massage therapy and delves into Jennifer’s method of integrating structural body work with functional medicine. Jennifer details her systematic approach to assessing posture and structure in her clients and how she determines when pain may be linked to metabolic issues through hands-on techniques and client interactions. She also discusses common misconceptions around strength

The FDN Investigation Process: A Comprehensive Approach to Assessing and Addressing Metabolic Chaos
Understanding the Functional Diagnostic Nutrition ™ (FDN) Investigation Process Functional Diagnostic Nutrition (FDN) offers a data-driven approach to uncovering hidden health imbalances and addressing metabolic chaos. Unlike traditional healthcare models that often treat symptoms in isolation, FDN practitioners take a 360-degree view of clients, integrating lab data with lifestyle factors to develop personalized wellness plans. This article delves into the FDN intake and assessment process, including key lab tests used to identify and address underlying dysfunctions in the body. The Initial Assessment and Intake Process FDN employs a meticulous intake process to correlate lab data with an individual’s health history, lifestyle, and symptoms. This ensures that practitioners do not rely solely on lab numbers but instead interpret them in the context of a client’s overall health. Metabolic Chaos ™ Scorecard The first step in the FDN intake process is the Metabolic Chaos Scorecard, a self-assessment tool that helps clients identify
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Help people eliminate symptoms by taking a whole approach & Become the expert people trust.
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