Iona Care


Natural approaches informed by science

Supplements/diets aren't the only solution

Education and ongoing support are key

In person or online visits.

Collaboration is key


We believe everyone is served best when we start therapeutic relationships with patients who will connect with us and the services we provide.


Because we believe in working with your current health care team, and in science-informed approaches, we may not be the best fit for everyone seeking naturopathic care. 

We may be your ideal ND practice if: 

You are looking to minimize, stop, or avoid taking medications that are not helping you.

You understand that taking natural health products or hormones are not a quick fix and may not always be the best replacement for your  medications or similar treatments.


You understand that there may be a cost initially for this kind of care, but it will save you money, time, and energy down the road.


You are ready to make significant changes to create health and wellness in your life. 


You want your ND to work collaboratively with your family practice physicians and other conventional health care providers.

About the doctor: Marianne Trevorrow, MA ND

I am an ND who originally trained as a historian; when I'm not seeing patients, I run the Canadian Naturopathic Association professional journal out of Toronto. I've been a clinical researcher in nutritional medicine during my training at Bastyr University in Seattle in the early 2000s and believe in an approach where we use the best practices in integrative and lifestyle medicine to find simple solutions that work for patients. 

I welcome patients throughout the lifespan, although I focus on women patients with gyn and reproductive issues, as well as children and adults with mental health, allergic, digestive, and chronic health problems, including diabetes and cardiovascular disease. My approach to care has always been to engage with patients as individuals with to focus on lifestyle and nutrient therapies to minimize the use of medications when not needed. I have also met the standard for ND prescriptive authority in Ontario, so welcome discussions on hormone and injections therapies that are within our scope. 

I've held a few leadership positions for profession in BC and Alberta, before recently moving to Ontario, and have always sought to build bridges with our conventional colleagues, knowing that no one approach has all the answers. I've written for peer reviewed journals and several blogs including the Canadian Naturopathic Foundations and Calgary is Green. I have been and remain a big supporter of research in complementary (also know as CAM) medicine. In my practice, I use a combination of integrative, evidence-based, holistic, trauma-informed, and individualized medicine.  

After almost 14 years in practice, and having worked both 'in house' and 'across the table' with researchers/academics, family doctors (MD), psychiatrists, pharmacists, psychologists, physiotherapists, acupuncturists, nurses and many other CAM practitioners, I am firmly convinced that team based approaches (even when people respectfully disagree) work best for long term patient outcomes, as well as for our communities and the planet as a whole. Good medicine in practice is as much art as science, and I try to incorporate a humanistic approach wherever possible . 

In addition to being an ND, writer, collaborator, and editor, I'm also a big fan of alpine hiking, sea kayaking, adventure travel, and early music performance.  I have a grown son and a cat named Isabella, and am still working on a better work-life balance after many years in ND leadership. 

If you are interested in learning more about my approach, I encourage you to book a complimentary phone consult with me. 

Warm regards, 

Dr. Marianne

@ Kingston Integrated Healthcare

541 Palace Road

Kingston, ON, Canada

2019 by Iona Natural Family Care.