Seminars for Health Professionals

Stay informed. Stay certified.

Optimal Health Systems is partnered with some of the leading minds in holistic healthcare. Together we help deliver quality seminars containing valuable information on the latest research, products, practices, and more.

The Latest Research

To provide the best care, you need to stay on top of the latest research relevant to chiropractic.

Financial Advice

You earned a wonderful degree. Now it’s time to put it to work and get the most out of it.


As in any business, it’s not just what you know; it’s also who you know. Seminars are a great networking hub.


Below is a sampling of speakers. Seminars and panels vary between events.

Please call 800-890-4547 and ask a friendly representative for full details.

Douglas D.

Douglas D.

Nutritionist, BS, ACSM

Owner and formulator for Optimal Health Systems.

Dr. John Brimhall

Dr. John Brimhall


“The Father of Wellness” in chiropractic.

Dr. Marc Harris

Dr. Marc Harris


The ultimate authority on methylation.

2021 Seminar Dates

Our founder and chief formulator, Douglas D., along with Dr. John Brimhall and Dr. Marc Harris are excited to announce the 2021 OHS seminar schedule!

Just as we did in 2020 in the midst of shutdowns and strict regulations, we are committed to bringing you 5 different seminars in premier locations across the nation to ensure your clinic has several options to level up in 2021. Because we’re so excited for this year’s line up, we’ve decided to offer special discounts when you sign up for more than 1 seminar at a time!


1st Seminar Registration: $395

2nd+ Seminar Registrations: Only $295 Each

Depending on each location’s regulations, we may be forced to limit the number of attendees allowed at each seminar. To ensure your spot is saved, call us to register early!

Methylation 1 Series Seminar

March 26-28 | Phildelphia, PA

During this 3-day seminar, you will learn and be certified in methylation and genetic SNPs from 3x PhD, Dr. Marc Harris. You will learn how to test for different genetic SNPs with free testing kit provided to you, and the exact protocols, including nutrition, to be used to immediately remedy those deficiencies.

Dr. Marc Harris 


Dr. Marc Harris, MD, ND, PHD³, gives an overview of SNPs and how, in three days, he can teach you to tap into methylation testing and finally turn the health around in patients who can’t seem to make any progress.

In his seminars you will learn all about methylation, how to test for different genetic deficiencies through a kit provided to you, and the exact protocols, including nutrition to be used to immediately fix those issues.

These are the most cutting-edge seminar available that gives you tremendous clinical knowledge about methylation.

6 Steps To Wellness

April 23-25 | Salt Lake City, UT

During this 3-day seminar, you will be taught and certified in Dr. John Brimhall’s infamous “6 Steps To Wellness”. This includes how to test and balance the body’s systems to ensure the best patient results using his easy-to-learn 6 step process, complete with a free functional testing kit. The Six Steps to Wellness program encompasses structural imbalance, electromagnetic radiation, nutritional deficiencies, allergies and sensitivities, emotional issues, and toxicity.

Dr. Brimhall 


The  “Father of Wellness”, leading authority and one of the original practitioners in functional testing, and formulator of a therapeutic line of formulas through OHS. Health Professionals trained in the Brimhall protocol report tremendous improvements in their practice including healthier patients, enhanced profits, and more confidence when faced with difficult cases. 

Methylation 2

Methylation 2

June 4-6 | Dallas, TX

(Prerequisite: Methylation 1 Certification)

Methylation Series 2 is a brand new continuation certification seminar offered by Dr. Marc Harris for health professionals that have been previously certified in Methylation Series 1 training. You will receive a test kit with 30 new SNPs to test for, along with his nutrient and nutrition recommendations to remedy those genetic SNPs to help your patients move closer to optimal health. 

OHS Super Seminar

OHS Super Seminar

August 26-29 | Phoenix, Az

The 2nd Annual OHS Super Seminar is going to be the can’t-miss event of the year for holistic health professionals. The list of speakers includes a long list of new, fresh faces bringing exciting and innovative information to help your clinic move to the next level, along with our favorite speakers, Dr. John Brimhall and Dr. Marc Harris.

The Big Conditions

The Big Conditions

October 15-17 | Nashville, TN

The long-awaited and highly-anticipated Big Conditions seminar (a.k.a. ‘The Big C’ seminar) by Dr. Marc Harris is happening. During this 3-day seminar, you will be taught about major conditions and the nutrition and supplementation protocols that can be used to nutritionally support them. 

Reach Us

Send us a message or give us a call to sign up.

Hear it straight from satisfied
Health Professionals

“I attended OHS and Dr. Marc Harris’s Methylation seminar and it was a game changer. It helped me find the root causes of many of my patients concerns. Dr Harris helped simplify the understanding of Genetics and Methylation so I could easily show and talk to my patients. The hands on seminar gave me everything I needed to start implementing the next week. Immediately, I was able to help many patients that had tough conditions and it also worked great with those just needing the final balancing in order to reach optimal health. I recommend the Methylation seminar to all Doctors.”

Dr. Brandon Adams D.C.

Plano, TX

“I have been researching genetic testing and treatments for almost ten years since my own mother was starting to show the early signs of Alzheimer’s disease. 23andme was one of the testing companies, but back then the testing was still fairly pricy. Since then, I have been researching more on genetics and what to do for them. Dr. Marc has made the whole process easy and inexpensive. Since I had genetic testing performed years ago, I already knew which ones I should react to, and Dr. Marc was spot on when he tested me. The nice thing about Dr. Harris’s approach is that he also knows the proper order to test and what key nutrients will help balance the SNP. One nutrient can many times correct several SNPs, which is much easier than the process I was using previously. You will love this seminar so much, you will want to go back to the next seminar to pick up on all the extra pearls he gives. I’m already looking forward to the advanced course he promised us. 

Wendy Meyer

Norfolk, NE

“Great whole food nutrition philosophy that makes real sense! The right ingredients in the right ratio and the right form. I like!”

Andy N.

Take a look at past seminars

Here are pictures from various seminars in the past.