Depression, Anxiety and the Gastrointestinal Tract Microbiota

The Role of Melancholic Microbes in Mood Disorders

   Watch Promo   Enroll in Course

It has long been known that psychological stress could negatively impact the composition of the gastrointestinal tract microbiota. Research conducted over the past decade has shown, however, that alterations in the composition of the microbiota can actually change emotional behaviour and brain function. This bidirectional relationship is now being referred to as the Brain-Gut-Microbiota axis.

In this 2-part lecture series, we’ll be exploring in depth the mechanisms by which our microbes may modify our mood - specifically depression and anxiety. We'll examine which intestinal microbes and their metabolites may be involved, as well as the investigation techniques needed to determine the health and composition of this ecosystem – particularly in relation to mood disorders.

Dr Hawrelak discusses treatment strategies aimed at improving the dysbiosis and gut dysfunction that underlies the microbiota-mood axis. He also highlights specific prebiotic and probiotic interventions that can modify the stress response, decrease systematic inflammation, improve cognition, and lift the spirits.

Lesson 1 - covers the links between dysbiotic events and alterations in mood, the mood-modifying mechanisms of the microbiota, and microbiota assessment techniques (65 mins).

Lesson 2 - covers the treatments required to alter the specific dysbiotic picture and gut dysfunction seen in depression and anxiety, as well as providing a comprehensive overview of prebiotic and probiotic interventions in the management of stress, depression, and anxiety (72 mins).

Lessons can be studied at your own time and at your own pace.


Your Instructor


Dr Jason Hawrelak
Dr Jason Hawrelak

Dr Hawrelak is a microbiota and probiotic researcher, educator, and clinician with over 20 years experience treating mainly gastrointestinal conditions and more than 20 years teaching students and practitioners how to diagnose and treat gastrointestinal conditions, as well as how to promote optimal gut health. Click here for a full bio.


Frequently Asked Questions


How long do I have access to the course?
You will have access to the webinar for 4 months and you can print off the pdf notes at any point during this time.
What resources do I get?
You'll get access to the webinar to watch and will have access to a printable pdf copy of the session slides. You'll also get a certificate of completion when you finish the course.
Can I claim continuing professional education points (CPE) after the completion of the course?
Please check with your professional association in regards to their CPE requirements. Some health professionals in some countries will certainly be able to claim the CPE/CPD points for the completion of the courses and webinars (e.g., naturopaths and nutritionists in Australia). You will receive a certificate upon completion of the course.
Is it possible to consult with Dr Hawrelak about my complex cases or get his input on test interpretation?
To enquire about a mentoring session with Dr Jason Hawrelak, contact the Goulds Natural Medicine Clinic via email ([email protected])

Get started now!