FEBRUARY 22-24, 2019


Qualified attendees that attend all three days will receive a FREE Organic Acids Test, worth $299!

Day 1

The Clinical Significance of Organic Acids Testing

Learn how to use this comprehensive metabolic test in your practice to help with your most difficult-to-diagnose patients. With 74 markers, including those for yeast and bacteria overgrowth, inflammation, oxidative stress, mitochondrial dysfunction, oxalates, gastrointestinal dysbiosis, and nutritional imbalances, the Organic Acids Test (OAT) helps you discover the underlying causes of many chronic conditions. When you attend this workshop, you will not only learn how the OAT can be used in clinical practice, but also ways to use it along with other diagnostic assessments, as well as what kinds of treatments have been effective.

Day 2

The Health Implications of Metal and Non-Metal Toxins

This workshop will focus on the epidemic of environmental toxin exposure, from the many chemicals we encounter every day, to heavy metals, to mycotoxins released from mold. You will learn about many common environmental pollutants from the 172 chemicals tested by our GPL-TOX Profile.  You will find out how these chemicals can affect our health and what steps can be taken to help detoxify the body.  You will also learn about the eleven types of mold mycotoxins tested for in our new MycoTOX Profile and about the chronic health conditions mycotoxin exposure can cause.  We will review how to use these tests in your practice to create the most effective treatments possible for your patients. 

Day 3

The Inflammatory Basis of Disease

Using Specific Tests to Discover and Treat Chronic Inflammation
Inflammation has been implicated in many different chronic diseases and can occur in almost every tissue of the body.  Prevention and reduction of inflammation can often lead to better health outcomes.  The Great Plains Laboratory has focused on how inflammation can be managed for numerous types of chronic diseases, from depression and Alzheimer’s disease, to fibromyalgia and cardiovascular disease, and this all started with the Organic Acids Test.  We then developed our Phospholipase A2 Activity Test because of PLA2’s inflammatory role in many chronic diseases.  Finally, we provide an IgG Food Allergy Test and a Gluten + Casein Peptides Test to assist in determining how diet can lead to inflammation and chronic disease.  On day three, we will review how all of these tests can be used to discover sources of inflammation in the body and brain, as well as treatments that have been effective.



organic acids testing

8:00am | Registration and Breakfast

8:45am | Introduction To The Organic Acids Test and Why It Is So Important In Clinical Practice

Hundreds of organic acid metabolites are found in the urine of all mammals, including humans. These metabolites can be used for both diagnostic and therapeutic measurements for detecting abnormal gastrointestinal overgrowth or dysbiosis, assessing mitochondrial energy production, detecting genetic diseases, assessing malnutrition and suboptimum nutrition, revealing toxic exposure, finding alterations of neurotransmitter metabolites in neurological and psychiatric disorders, and assessing metabolites that cause severe inflammation in a variety of chronic illnesses.

The OAT evaluates for various fungal toxins, including specific markers for Candida. Many people rely on stool testing for Candida diagnosis and miss the presence of Candida toxins through the Organic Acid Test. Candida can lead to neurochemical imbalances in the brain, as well as sensory problems and self-stimulatory behavior (often seen in autism).

11:15am | Morning Break

The OAT evaluates for two specific toxins related to Clostridia bacteria – HPHPA and 4-cresol. Both of these toxins can inhibit a dopamine converting enzyme, leading to excess dopamine and toxic reactions in the brain and nervous system. Problems such as moodiness, irritability, aggression, self-injurious behavior, sleep difficulties, and more can be associated with Clostridia bacteria overgrowth.

12:45pm | Lunch

The OAT includes glycolic and glyceric acids in the oxalate section, which can differentiate between genetic and nutritional components in disturbed oxalate metabolism. Oxalates are compounds found in many foods, and can be worsened by Candida overgrowth. High oxalates are associated with pain in the joints, muscles, and connective tissues. They can also trap heavy metals (such as mercury, lead, and arsenic) in the body and lead to mineral imbalances. Certain behavioral issues and self-injurious tendencies have been associated with high oxalates.

2:30pm | Neurochemical Imbalances and Quinolinic Acid Toxicity

The OAT evaluates for imbalances in serotonin (an important brain and nervous system chemical for mood, fine and gross motor skills, and calmness), as well additional markers that can indicate toxic stress in the brain and nervous system, such as quinolinic acid. High quinolinic acid suggests toxic stress in the brain and is important to evaluate before prescribing certain supplements, particularly L-Tryptophan which is commonly used to help with sleep.

3:30pm | Afternoon Break

4:00pm | Additional Case Studies: Lab Reviews and Treatment Options

This presentation will highlight various patient cases from clinical practice that show the role of biomedical intervention for various patient scenarios such as dietary therapy, yeast and Clostridia treatment, and methylation support.

Day 2

The Health Implications of Metal and Non-Metal Toxins

8:00am | Breakfast

8:40am | Heavy Metals and Their Role in Chronic Health Disorders

Heavy metals like cadmium, lead, and mercury are associated with many chronic illnesses and cancer. Find out the best way to test these metals, as well as simple protocols for treatment of excessive exposures.

9:45 am | Non-Metal Toxic Chemicals and Their Effects on Health

A huge array of non-metal toxic chemicals like phthalates, pyrethrins, organophosphates and many others can now be tested conveniently and economically in a single morning urine sample. Learn how to use this testing and apply it to a wide variety of chronic illnesses such as neurological disorders, psychiatric disorders, chronic fatigue, and many others. The best treatment options will be presented in great detail.

11:00am | Morning Break

11:45am | The Hidden Threat of Mycotoxins, Part 1

This presentation will review the specific markers in the GPL-MycoTOX Profile and how you may use this test in your practice to help your patients with mold exposure.

12:45pm | Lunch

2:00pm | The Hidden Threat of Mycotoxins, Part 2

Mold and fungi are ubiquitous in the environment. However, in "WDB" (water damaged buildings), and even some foods, mold can become a sinister force affecting physical and mental health. Not all molds are toxic and many just cause respiratory issues, but a subset of molds produce mycotoxins; powerful neurotoxins that can have a profound effect on the brain and mental health. The effects of mycotoxins, as well as testing, diagnosis, and treatment options will be discussed.

3:15pm | Afternoon Break

3:45pm | Invasion of the Brain Snatchers: Environmental and Infectious Influences on the Brain

Do your patients really have a "mental illness" like OCD or depression, or is it an infection or toxins affecting their brains? This presentation will explore the work-up and effects of environmental toxins and infections on the brain and mental health.

Day 3

The Inflammatory Basis of Disease

8:30am | Breakfast

9:00am | Food Allergy Testing: Scientific Evidence of its Validity in Chronic Illness

IgG food allergy has been implicated in a wide variety of illnesses including chronic fatigue, irritable bowel syndrome, obesity, autism, depression, schizophrenia, migraine headache, and many others. Learn about the different types of allergy testing and the treatments for allergies.

10:00am | How Peptides Influence the Brain in Autism and Mental Health Disorders

Peptides are small proteins that have profound effects on eating behavior, digestion, pain, immunity, infection, addiction, and more. We will review some of the most well-researched peptides such as the opiate peptides from wheat, milk, and soy.

11:00am | Morning Break

11:45am | PLA2: The Possible Root Cause of Many Inflammatory Disorders

Phospholipase A2 (PLA2) is elevated in a variety of inflammatory conditions including multiple sclerosis, cardiovascular disease (including atherosclerosis), Crohn’s disease, neurodegenerative diseases, bipolar depression, schizophrenia, and sepsis. This section will review new information about PLA2, methods for PLA2 testing, and treatment options.


Kurt Woeller, DO


Kurt N. Woeller, DO has been an integrative medicine physician and biomedical autism specialist for over 20+ years. He is an author of several health books including Autism – The Road To Recovery, Methyl-B12 Therapy For Autism, Methyl-B12 for Alzheimer’s Disease and Dementia, and“5 Things You MUST Do Right Now To Help With Your Rheumatoid Arthritis. He is an international speaker, educator, and practicing clinician offering specialized interventions for individuals with complex medical conditions. His health consulting practice for autism alone is multinational with families from various countries. Dr. Woeller serves as a lab advisor for BioHealth Laboratory, as well as provides educational seminars for The Great Plains Laboratory, Inc. He is cofounder of Integrative Medicine Academy (, which is an online training academy for health practitioners learning integrative medicine.


Matthew Pratt-Hyatt, PhD


Matthew Pratt-Hyatt received his PhD in cellular and molecular biology from the University of Michigan. He has trained under Dr. Paul Hollenberg, a prominent researcher on drug metabolism and Dr. Curtis Klaassen, one of the world's leading toxicologists. He has over a dozen publications in well-known research journals such as PNAS and Cell Metabolism. At The Great Plains Laboratory, he is focused on assisting with diagnosis and treatment of mitochondrial disorders, neurological diseases, chronic immune diseases, and more. He specializes in developing tools that examine factors at the interface between genetics and toxicology. His work is bringing new insight into how genes and toxicants interact and how that may lead to mental health disorders, chronic health issues, and metabolism disorders.


Joseph Pizzorno, ND

Founding President of Bastyr University

Joseph Pizzorno, ND is a world leading authority on science-based natural medicine, a term he coined in 1978 as founding president of Bastyr University. A naturopathic physician, educator, researcher and expert spokesman, he is Editor-in-Chief of PubMed-indexed IMCJ, Treasurer of Board of IFM, board member of American Herbal Pharmacopeia, and a member of the science boards of the Hecht Foundation, Gateway for Cancer Research and Bioclinic Naturals. Author or co-author of five textbooks and 7 consumer books (Encyclopedia of Natural MedicineThe Toxin Solution), he has been an intellectual, political and academic leader in medicine for four decades.


Mark Filidei, DO

Director of integrative medicine for amen clinics

Dr. Filidei is Director of Integrative Medicine for Amen Clinics.  He is a member of ILADS and treats Lyme disease and mold illness with both natural and conventional treatments.  He specializes in hormone replacement therapy and the treatment of mental health disorders utilizing functional medicine.  He is Assistant Clinical Professor of Medicine at UC Irvine.


Embassy Suites Phoenix - Scottsdale

4415 E. Paradise Village Pkwy South,Phoenix, Arizona, 85032

Rediscover the recently renovated suites at Embassy Suites by Hilton Phoenix – Scottsdale. Whether you're traveling for business, recreation, or fun with the family, this all-suite property has everything you're looking for. Take in the fairways of Stonecreek Golf Club or stunning views of Camelback Mountain.  Enjoy complimentary, cooked-to-order breakfast, sip drinks poolside, break a sweat in the fitness center, or savor locally inspired cuisine at Tatum's restaurant. Relax and unwind at the complimentary evening reception.  This hotel is walking distance from dozens of locally owned restaurants and surrounded by activities, from world-class shopping to hiking.

*No Resort Prices.  Complimentary Breakfasts (Full/Hot with cook to order).  Complimentary Receptions (Soft drinks, cocktails & light snacks).


This hotel is located 15 miles from Phoenix Sky Harbor International Airport.

Courtesy Shuttle

Complimentary shuttle within immediate area, 7 days/week from 9AM to 9PM, based upon availability


Embassy Suites Phoenix - Scottsdale

4415 E. Paradise Village Pkwy South,Phoenix, Arizona, 85032

Coming Soon

4415 E. Paradise Village Pkwy South
Phoenix, Arizona 85032

Room rate:
A block of rooms is available for a discounted rate of $229/night through January 25, 2019. 
To reserve a room by phone, call 602-765-5800 or 800-Embassy and mention “2019 GPL Academy Workshop”.
Online Reservations: Click Here

Scottsdale Master Practitioner Workshop
from 325.00

The Clinical Significance of Organic Acids Testing – February 22
The Health Implications of Metal and Non-Metal Toxins – February 23
The Inflammatory Basis of Disease - February 24

*See schedules under Workshops tab for all workshop details.

Attendees receive a FREE Organic Acids Test, worth $299.00! *Must attend all three days and must be currently in practice with the authority to order laboratory testing.  

Registration is refundable, minus a $50 processing fee, if your cancellation is received in writing no later than two weeks prior to the workshop date. Attendee substitutions are allowed, but notification must be made within two weeks prior to the workshop date. After this date, under no circumstances will refunds, credits, or substitutions be granted. No refunds or credits will be given to "no shows."

Registrants MUST ATTEND the workshop in order to receive their free test.


  • $325 for Master Practitioner Workshop (3 Days) through January 20th

  • $425 for Master Practitioner Workshop (3 Days) after January 20th

  • $75 Accreditation (CME)

*Please review all accreditation details here before purchasing CME credits.

CME Accreditation:
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Registration is refundable, minus a $50 processing fee, if your cancellation is received in writing no later than two weeks prior to the workshop date. Attendee substitutions are allowed, but notification must be made within two weeks prior to the workshop date. After this date, under no circumstances will refunds, credits, or substitutions be granted. No refunds or credits will be given to "no shows."