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Rated 5 out of 5 stars

ODX has been a staple for us at Wellconnekt. Their reporting and care plans are top notch. Beyond the great platform features, the customer service has been above expectations. They recently handle... See more

Rated 5 out of 5 stars

To all of my fellow Holistic Nutritionists out there – this is phenomenal training to compliment the work that you do to help your clients in their healing! You will find that FBCA will assist in s... See more

Rated 5 out of 5 stars

In today's world, bloodwork has been thought of as a tool to diagnose and treat a pre-existing condition. On the other side of the spectrum is Dr. Weatherby's Optimaldx program. Speaking of personal e... See more

Rated 5 out of 5 stars

The Optimal Dx is one of the most significant, if not thee most significant development in my naturopathic medical practice. I have been a customer of Dr. Dicken Weatherby since the beginning of my pr... See more

Company details

  1. Software Company

Written by the company

Use Optimal DX’s blood chemistry analysis software to identify dysfunction, track change and guide your patients to optimal health.


Contact info

4.7

Excellent

TrustScore 4.5 out of 5

25 reviews

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Rated 5 out of 5 stars

ODX has been a staple for us at Wellconnekt

ODX has been a staple for us at Wellconnekt. Their reporting and care plans are top notch. Beyond the great platform features, the customer service has been above expectations. They recently handled a CS inquiry by going above and beyond. Knowing that we have a partner like ODX in this industry feels like a massive leg up.

April 29, 2026
Unprompted review
Rated 5 out of 5 stars

FBCA is Great for Holistic Nutritionists

To all of my fellow Holistic Nutritionists out there – this is phenomenal training to compliment the work that you do to help your clients in their healing! You will find that FBCA will assist in seeing what is healing, what needs attention, and what may be emerging in a client’s health. Dr. Weatherby’s teaching style, resource materials, and case studies are all presented in a manner that feels very experiential. Overall, for me, this is a highly beneficial tool to add to my holistic approach to healing!

Nancy Trott, BCNP, CHN
Naturally Nutrients Holistic Nutrition

April 12, 2026
Unprompted review
Rated 5 out of 5 stars

Great course for anyone interested in getting the most out of blood work

Optimal DX not only provides a ton of very helpful, science-backed free content but also a great course on Functional Blood Chemistry Analysis (FBCA).
In this course, I really learned the ins and outs of analyzing blood test results from a functional medicine perspective. The focus is not on Standard Reference Ranges but rather on Optimal Ranges to identify a trend toward dysfunction early and prevent disease from happening rather than simply treating it once it has happened.
I am not a medical practitioner but a health coach, so I don't treat, cure, or diagnose disease. Instead, I help my clients achieve better health through lifestyle modification, nutrition and personalized training programs as well as targeted supplementation to give their bodies what they need and take away what is harming them so they can reregulate themselves.
By doing this course, I now have the ability to gain valuable insights into potential dysfunctions and areas to target for improvement without having to run functional medicine lab tests, which are often not covered by insurance and therefore provide a higher barrier of entry for clients.
The lessons of this course are really in-depth, covering both the physiology of each bodily system and the biomarkers you can find on a comprehensive blood panel and what a high/low or trending high/low value for each of those biomarkers means. Additionally, you get insights into the interplay of different biomarkers and learn to identify patterns of dysfunction.
In short, highly recommended.

February 28, 2025
Unprompted review
Rated 5 out of 5 stars

ODX is an amazing company with an…

ODX is an amazing company with an incredible certification course, webinars, and Dr Dicken Weatherby with his thorough videos, handouts, and books. I'm so honored to be listed in their practitioner directory. I very highly recommend their blood work reports to me clients and to anyone suffering with health issues who wants real answers to finally get their health moving in the right direction.

January 13, 2025
Unprompted review
Rated 5 out of 5 stars

ODX Functional Lab training delivers!

My background is Biochem / Medical Technologist (ASCP registered) [American Society of Clinical Pathologists], & functional nutrition training ..... This curriculum tied up the loose ends from my decades of experience in Immunology, Endocrinology, & general clinical laboratories! Dr Dicken Weatherby & Optimal DX are amazing. Put his extensive knowledge in your tool box ... your patients will appreciate it ! [On a side note ..... many functional training programs refer to Dr Weatherby AND his books in their curriculum...... that speaks volumes!]

August 7, 2024
Unprompted review
Rated 5 out of 5 stars

What made the the functional blood…

What made the the functional blood chemistry analysis certificate such a great experience was the detailed broken down of each body system and the blood makers that represent each, paired with enough biochemistry to tie it all together. Great customer service and support when needed and I loved the feedback I got from real-life case study. Would definitely recommend if you wanted to learn comprehensive blood chem analysis in a systematic fashion.

December 19, 2023
Unprompted review
Rated 5 out of 5 stars

Loved this certification course

Loved this certification course! The lessons were very detailed and made understandable. I use this knowledge and resources every single day in my practice and am excited to help more people feel better! I highly recommend!

October 4, 2023
Unprompted review
Rated 5 out of 5 stars

An extremely useful course and platform

I have just completed the course and received the long-awaited certificate. I realised that I had no serious knowledge of the complex interpretation of laboratory tests, despite many years of practice and cooperation with medical laboratories. The course slowly but surely systematises laboratory diagnostics knowledge from a functional medicine perspective.
The ODX platform deserves special mention, as it is a unique tool for the assessment of therapy efficacy for both the physician and the patient. I continue to study the Functional Detox Training Programme with great interest. My best wishes for the success of the project and for further fruitful work on the optimisation of the platform.

August 24, 2023
Unprompted review
Rated 5 out of 5 stars

Amazing program

Amazing program! I've expanded so much of my knowledge base and appreciated the touch ups on things already known. This program was truly worth it!!

June 30, 2023
Unprompted review
Rated 5 out of 5 stars

Great Program

Super comprehensive and indepth program that really teaches you how to look at blood work and interpret it in a functional manner to discover the root cause factors driving certain imbalances.

I have been studying functional medicine and blood chemistry for 15 years and this is the most comprehensive and complete program I have found. Thank you!

March 14, 2023
Unprompted review
Rated 5 out of 5 stars

Highly recommended!

A very comprehensive, well-structured course on the art and science of blood test interpretation from a functional medicine view. The modules cover different body systems while establishing connections between imbalances in different systems and their possible underlying causes. The lectures have attached transcriptions, but I loved listening to Dr. Weatherby's recordings.

I highly recommend this course for everyone intrigued to deepen their knowledge of blood chemistry and lab evaluations.

February 21, 2023
Unprompted review
Rated 5 out of 5 stars

The delivery drive was pleasant and…

The delivery drive was pleasant and very helpful how refreshing to get service from a delivery drive at such a high standard, brilliant. Cowbridge, Vale of Glamorgan.

February 17, 2023
Unprompted review
Optimal DX logo

Reply from Optimal DX

Thanks so much for your very kind review but I think you may have the wrong company! I'm not quite sure what a "delivery drive" is but so glad it was pleasant and of such a high standard! I spent a lovely summer in the Vale of Glamorgan in the 80's!
Wales is such a beautiful country.

Rated 5 out of 5 stars

Highly recommend course and ODX

I thoroughly enjoyed Academy. I found the lectures to be well put together and not too long. I appreciated having the slides as well as transcripts so that I can go back to review as needed in the future. I also appreciated access to the Optimal DX program. I was very impressed with the results of plugging in the labs. The results are easy to see, will be very useful to share with patients, included some nice recommendations that I may or may not have considered otherwise. I will definitely want to add Optimal DX software to my practice as well.

August 30, 2022
Unprompted review
Rated 5 out of 5 stars

Just finished my training and certification

I have just finished my training and am now certified. I used Dr Weatherby's textbooks in university. Therefore, if I was going to do a course on blood test analysis, this is where I was going to go. I put off paying for the training for a while, but eventually bought the software and am so happy I did. Then I decided to take the plunge and do the course and certification. While I need to revise my notes from time to time, I can now look and at a blood test and see some of the patterns. Most conventional doctors have no idea about patterns, but this is the area I find most invaluable. If you are like me and you want to do the course, but keep on putting it off, I highly recommend taking the plunge. It will stand you in good stead and you will have a major tool to prevent serious disease in your patients (as well as you and your loved ones).

July 8, 2022
Unprompted review
Rated 5 out of 5 stars

Great course

The software is amazing for analysing bloods. It's so in-depth. The course is full of information. I prefer the practical side of it more so than the detailed bio chemistry but it is designed for doctors so I appreciate that.

June 9, 2022
Unprompted review
Rated 5 out of 5 stars

I have taken several courses relating…

I have taken several courses relating with functional medicine. I have gone through a few certification programs as well. This course was probably the most informative for all things blood work! There are several reasons why you should consider this course: it is self-paced, affordable for what you get, accessible, empowering and informative in many ways more than just "here is a marker, next marker please".... There is a lot of emphasis on mechanisms of action. Because it is so rich in content, I know I will be going back to the info as I get more and more clinical experience. The tools are great as well!

June 4, 2022
Unprompted review
Rated 5 out of 5 stars

I was one of the first users of the…

I was one of the first users of the Optimal DX program and I and highly recommend it to all practitioners of functional medicine. The software is an invaluable tool that gives me the ability to explain lab findings from a functional perspective and provide patients with detailed information about lab findings.

Paul Harris ND
Tulsa Natural Health Clinic
Tulsa, OK

May 20, 2022
Unprompted review
Rated 5 out of 5 stars

Data delivers hope!

In today's world, bloodwork has been thought of as a tool to diagnose and treat a pre-existing condition. On the other side of the spectrum is Dr. Weatherby's Optimaldx program. Speaking of personal experience, it has been a game-changer for myself, my family and for my patients when it comes to being pro-active regarding my healthcare decisions. The functional data not only gives you the tools to gain more knowledge but moreover, it offers hope. Thank you for all that you do and are at Optimaldx!

May 20, 2022
Unprompted review

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