#93 The Best Gut Health Testing - with Dr. Ken McGrath

The Holistic Nutritionists Podcast


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"Anything larger than bacteria isn't going to be evenly distributed in a stool, so the best gut microbiome test kits always require a large amount of stool to analyze. More than just a swab you need to have several grams or even 10s of grams of material to test before you really start to see parasites in a sample. And because parasites go through a cyclical shedding process, you also need to test stool samples across multiple days."

Dr. Ken McGrath | Clinical Liaison Manager for Microba Tweet This!

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The Holistic Nutritionists Podcast - with Natalie K. Douglas and Kate Callaghan

Welcome to The Holistic Nutritionists Podcast!

If a professional, polished, well-edited podcast is what you’re after…then we’re not for you!

But if you love unfiltered banter, unedited bloopers and authentic heart sharing then we are your ladies.

We also have the most practical tips on holistic and alternative health care too 😉

Have a question that you want answered on the podcast or want to be interviewed? Get in touch!


Natalie K. Douglas | Thyroid Healer

Natalie K. Douglas | Thyroid Healer

Natalie K. Douglas ("Nat") is a Holistic Dietitian and Nutritionist dedicated to Thyroid, gut and hormone healing.

Nat shows stressed, burnt out, overwhelmed women how to value their worth again, change their mindset habits, prioritize healing, and reclaim their vitality. Guaranteed.

Her clients say she’s the right girl to see if you’ve tried the conventional approach and nothing has worked.

Kate Callaghan | The Holistic Nutritionist

Kate Callaghan | The Holistic Nutritionist

Kate Callaghan is a Holistic Nutritionist, Personal Trainer and Lifestyle Coach who specializes in women's hormone healing.

She recognizes that there is no “one size fits all” diet or “magic bullet” which is going to cure all illnesses.

She focuses on having a thorough understanding of your personal goals, needs, likes/dislikes, support networks and lifestyle in order to create a food and lifestyle approach that suits YOU.


Dr. Ken McGrath | Clinical Liaison Manager for Microba

Dr. Ken McGrath | Clinical Liaison Manager for Microba


Dr. Ken McGrath is the Clinical Liaison Manager with Microba. He obtained his PhD in Biochemistry and Molecular Pathology from the University of Queensland, and has a research background in microbial genomics, including human microbiomes and metagenomic analysis. Ken was the manager of a DNA sequencing laboratory 10 years prior to joining Microba, and is a member of several international microbiome research projects, including global pathogen detection and monitoring. Ken is now helping Microba bring the latest gut microbiome technology to healthcare practitioners and educate and inform them of how the information can benefit their patient management.


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