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Herbalism and the Thyroid Intensive

with Matthew Wood and Phyllis D. Light

Herbalist with 75 Years of Joint Experience 

as Consulting Herbalists & Herbal Authors

In this intensive you'll learn:

🍃 History 🍃

At first, all that was known about the human thyroid was that it needed iodine and it was responsible for heat generation.  We learn about this in Matt and Phyllis' class "Iodine, Evolution and the Thyroid." 

🍃 Signs, Symptoms & Diagnostic Terms  🍃

In addition to iodine deficiency, various types of goiter, swelling, and small lumps can occur in the thyroid—as well as cancer. 

We will address the four major conditions of the thyroid that are usually contemplated:

• hyperthyroidism •

• hypothyroidism •

• Hashimoto’s disease (which usually ends in hypothyroidism) •

 • under-secretion of thyroid stimulating hormone in the pituitary •

• Wilson's Thyroid Syndrome •

These can have a multitude of causes and whether we know the cause or not, there are effective remedies for all of these conditions. 

🍃 Effective, Time-tested Remedies 🍃

Matt and Phyllis have often and successfully used to improve thyroid conditions:

- Lemon Balm -

- Motherwort -

- Lycopus -

- Poplar bark -

- Black Walnut -

- Ashwagandha -

- Iris -

- Poke Root -

Also learn what they've found to aid symptoms of Hashimoto's and to regulate pituitary function

🍃 Causes of thyroid-related conditions, even unsuspecting ones like... 🍃

Misuse of the voice box and tensions in the upper chest, neck, and shoulder structures is known to cause hypothyroid.

Leaky gut is another little known cause of thyroid conditions. 

🍃 Thyroid imbalances are easy to correct 🍃

Who is this class for?

This class is suitable for students of all levels.


To get the most out of this class it is highly recommended to also study the class and materials "Iodine, Evolution and the Thyroid" with Matthew and Phyllis.


  • Online Materials

    View over 100 pages of manuscripts by Matthew Wood and Phyllis D. Light. See Curriculum below.

  • 1 year access to materials and Q&A during and after class

    1 year to view and review content, ask questions and discuss with fellow students and teachers.

  • 3.5 hours of teaching

    3.5 hours of in-depth teaching with Matthew Wood and Phyllis D. Light


Sunday, November 21st

2:00 - 5:30 pm US Central (Chicago time)

may include a brief break

easy time zone converter here


We use the online webinar service, Zoom

Webinar links are sent to enrolled students 2 days, 1 day and 1 hour prior to class. See the simple instruction on how to attend on our HELP page.

The recording of the class will be available within 2 days of the webinar.

What is the class like?

Classes are held online in a webinar format. Students will view and hear only the teachers and hosts and can participate in the online chat and Q&A.


  • 1


    • Welcome Message

  • 2

    Support Materials

    • About "view only" documents

    • Iodine by Mattthew Wood, 101 pages

    • Patterns of Hormonal and Reproductive Imbalance by Matthew Wood and Phyllis D. Light (version 9.1.21) 21 pages

    • Understanding the Thyroid by Phyllis D. Light, MA and commentary by Matthew Wood, MS (15 pages Downloadable)

  • 3

    Herbalism and the Thyroid Intensive

    • Webinar Instructions

    • The class recording will be here within 2 days of the online class.

Documents are not downlodable. Please note that Matthew often adds manuscripts of up-coming books and is allowing students early access to these works-in-progress and therefor they are available as "view-only" documents and are not downloadable.

Get the Early-bird price!

1-year access

Start at anytime! Complete the lessons at your own pace. 

Certificates designed and signed by Matthew Wood are available for purchase to those who successfully complete all tests with a passing grade of 70% or better. More details regarding certificates are here.

The test is approximately 40 multiple choice questions. Multiple attempts are permitted.

This class will be added to the Library approximately June 2022.

Free Preview Material

"Patterns of Hormonal and Reproductive Imbalance" 

by Matthew Wood and Phyllis D. Light

Access this 21 page document for FREE and receive news of upcoming classes in this SERIES of classes HERE!