My FDN Certification Review: How Functional Lab Training Changed The Way I Coach
When I started my nutrition coaching business in 2018, I thought I had a solid foundation. I was running programs out of my CrossFit gym in Northwest Indiana, helping people dial in their macros, lose body fat, and perform better. And for a lot of clients, that worked — at least for a while.
But over time, I started running into a wall. Clients would follow the plan, do everything right, and still not feel better. Women were coming to me with fatigue, bloating, hormone imbalances, stubborn weight that wouldn't budge — and I didn't have the tools to help them beyond adjusting their food. I could see the patterns, but I couldn't get to the root of what was actually going on.
That's a frustrating place to be as a coach. You know something is off, but your training doesn't give you the ability to investigate it.
Searching for Something Deeper
I started looking for continuing education that could fill the gap. I explored other certifications, read everything I could get my hands on, and attended online health summits. But most of what I found was either too surface-level — another way to rearrange macros — or too clinical, designed for MDs and out of reach for someone like me.
What I wanted was something in between. Rigorous enough to actually move the needle with my clients, but built for practitioners who work with real people every day. I didn't need another theory course. I needed tools.
Finding FDN
I'll be honest — I was skeptical at first. I'd seen enough online certifications to be cautious about big promises. But what stood out about Functional Diagnostic Nutrition was the emphasis on functional lab testing. Not just learning concepts, but actually running labs on yourself, interpreting real data, and building personalized protocols based on what you find.
The FDN tagline is "test, don't guess," and that hit me right where I needed it. Because guessing was exactly what I'd been doing — educated guessing, sure, but guessing nonetheless.
If you're in a similar place and want to see what the program looks like from the inside, you can take a free course tour here.
What the Program Was Actually Like
FDN is a self-paced certification, but calling it "self-paced" undersells the experience. You're not just watching lectures — you're running real functional labs on yourself. Hormone panels, GI testing (the GI-MAP was eye-opening), metabolic profiles, and a mucosal barrier assessment. Then you review your own results with mentors who have been doing this work for years.
That part alone was worth the investment. I uncovered things about my own health that I had no idea were there. And if I didn't know this about myself — someone already deep in the health and fitness world — I could only imagine what my clients were carrying around undiagnosed.
The clinical training goes deep. You learn to look at the whole picture: hormones, gut health, detoxification pathways, immune function, the nervous system — and how they all interact. It's not "here's a protocol for bloating." It's "here's how to investigate what's actually driving the bloating and build a plan specific to this person." That shift in thinking completely changed how I coach.
A few things that stood out to me:
The D.R.E.S.S. protocol. Diet, Rest, Exercise, Stress Management, and Supplementation. It sounds simple, but the way FDN teaches you to apply it is anything but. It becomes a comprehensive framework you use for every single client — and for yourself.
The mentorship. Weekly live calls with the founder, Reed Davis, and the lead instructors. One-on-one sessions to review your own lab results. A private community of practitioners doing this work at a high level. You're not left alone to figure it out.
The Medical Director Program (MDP). This gives you legal access to order 70+ functional labs as an unlicensed practitioner. That's a game-changer. It means I can work with clients at a level that most health coaches simply can't, and I can do it legally and ethically.
What Changed
On a personal level, I finally understood my own body in a way that years of coaching and self-experimentation never gave me. I went from guessing at what might be off to seeing the data and knowing.
Professionally, it transformed my practice. I went from macro coaching to running a functional health practice — AWAKN Wellness — where I work with women on hormone imbalances, gut dysfunction, and metabolic issues at the root cause level. The confidence that comes from having real data, knowing how to interpret it, and having a proven system to build protocols from — that's what FDN gave me.
I still use my nutrition coaching background every day. It didn't replace what I already knew — it gave me the missing layer that makes everything else work better.
Who This Is For
If you're a health coach, personal trainer, nutritionist, or fitness professional who feels limited by your current toolkit — FDN is worth a serious look. Especially if you're tired of giving the same general advice and wondering why it doesn't stick for certain clients.
It's also for people who've been through their own health journey and want to help others navigate theirs. A huge part of the FDN community is people who got into this work because the conventional system didn't have answers for them.
You don't need a medical background. You don't need a science degree. You need curiosity, a willingness to do the work, and a genuine desire to help people at a deeper level.
If You Want to Learn More
I'd encourage you to explore the program yourself. You can even view a few modules before signing up!
If you use this page to enroll, you'll receive a $1,000 discount on enrollment. And if you have questions about what the experience is actually like — the good, the hard, the things I wish I'd known — I'm always happy to talk.
You can reach me at danielle@awaknyourwellness.com, @awakn.wellness, or my Contact Me page.