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Leaky colon is less well-known than leaky gut (small intestinal hyperpermeability), but equally important. With a leaky ...
20/02/2026

Leaky colon is less well-known than leaky gut (small intestinal hyperpermeability), but equally important.

With a leaky colon, the colonocytes break down, allowing inflammatory compounds to leak into the bloodstream. This can include environmental toxicants that your gut is trying to eliminate, bacterial toxins, and even hormones.

Once they enter the bloodstream, your detoxification system must work again to remove them from your body.

A major factor in leaky colon is not producing enough butyrate by the bacteria in the colon. Butyrate is the primary food for your colonocytes, and without sufficient amounts, they starve and no longer function the way they should.

Prebiotic and fiber-rich foods, as well as resistant starches, help your butyrate-producing microbes make butyrate!

If you're a clinician and want to learn more about lesser-known but clinically crucial issues like leaky colon and how to treat them, be sure to enrol in our spring cohort of the Naturopathic & Functional Medicine Approaches to Gastrointestinal Disorders Course. https://probiotic-advisor.teachable.com/p/naturopathic-functional-medicine-approaches-to-gastrointestinal-disorders-2026-term

Early bird enrolment ends soon!

Hi all, a presentation I gave as part of the Gut-Brain Solution on the link between cognitive health and the microbiome ...
17/02/2026

Hi all, a presentation I gave as part of the Gut-Brain Solution on the link between cognitive health and the microbiome will be available to watch later this month.

If you'd like to access this talk, along with presentations from 45 other health experts, use the link I've provided in the comment section.

- Jason

12/02/2026

We sincerely apologize to those who were unable to attend the webinar live. Despite planning for additional capacity, the session reached its maximum number of participants on Zoom due to a technical glitch.

If you registered, please rest assured that you will receive access to the full recording.

We understand that many of you were looking forward to joining the event live. Due to the high attendance, the live Q&A portion will be limited. However, we often find that many attendees share similar questions, and we hope the discussion will address the topics most important to you.

We have helped many, many patients heal leaky gut at the Hawrelak Gut and Microbiome Clinic. Although each treatment str...
10/02/2026

We have helped many, many patients heal leaky gut at the Hawrelak Gut and Microbiome Clinic.

Although each treatment strategy is tailored to the patient, we always include a few foundational approaches.

Learn more about solutions for leaky gut, constipation, and other gut imbalances at our upcoming webinar this week, taught live by Dr. Jason Hawrelak.

The registration link is in the comment section.

04/02/2026

There's still time to save Lutruwita/Tasmania’s precious Takayna and upskill on Maternal Exclusion Diets at the same time.

Wild places are important for our microbiome health!

Our Dawn Whitten and her daughter Cerri are participating in the 2026 Takayna run, an annual fundraiser event organised by the Bob Brown Foundation, raising funds and awareness to protect Takayna.

Huge thank you for all of you who have helped us raise funds by purchasing this and or sharing this offering and the message about Takayna. We are halfway to our fundraising goal because of you.

To help Dawn and Cerri raise money and to cheer them along, we are donating all of the proceeds from the clinically-useful and highly-praised webinar “I Can Only Eat 5 Foods”, which puts the spotlight on maternal exclusion diets, including risks, misconceptions, and when they may be beneficial. You can choose how much you pay for the webinar, starting from $40 AU.

Whatever you pay, the full amount will be donated to the Bob Brown Foundation and will go towards the campaign to protect Takayna, a place of cultural and conservation significance and one of Earths’ few remaining wild places that needs our help to protect it from logging and mining.

Want to purchase the webinar and have your money go to protect the Takayna? Click here: https://probiotic-advisor.teachable.com/p/i-can-only-eat-five-foods

If you don’t want the webinar, but you would like to donate, you can also do that by following this link: https://takaynatrail2026.raiselysite.com/t/whittens

Takayna footage thanks to Rob Blakers, Bob Brown Foundation.

We’ve received quite a few emails lately, asking us for the chance to learn directly from me rather than registering for...
04/02/2026

We’ve received quite a few emails lately, asking us for the chance to learn directly from me rather than registering for a summit.

I’m happy to announce an upcoming free webinar on the interesting and actionable connection between the microbiome and constipation, one of the most prevalent and concerning issues we see in clinical practice.

Please use the link in the comments to register for The Connection Between Constipation and the Microbiome.

I plan on covering a lot of ground in this webinar, as constipation is a topic I’ve been researching frequently as of late.

Some of the primary points I’ll cover include:

- An update on the exact medicinal foods that relieve constipation
- The probiotics that really work (and the ones that don’t)
- Common misconceptions about constipation that set you back
- Key at-home tests that give you vital information about how well your gut is working
- The pivotal role of bowel toxemia in common chronic diseases and how we can change this
- Important microbiome shifts you can start immediately

Please share this webinar with a friend or colleague by passing on this post or the link to them directly.

I’m excited to share the trends I’m seeing in the research literature. I’ll see you at the webinar!

30/01/2026

If you're hitting a wall with your fat loss goals or your client's goals, it may be time to evaluate the gut microbiome.

27/01/2026

Berberine has been in the wellness spotlight, and I often see it touted for its Ozempic-like effects.

However, as a clinician, I do not recommend taking berberine for more than a short period because of its harmful effects on the gut microbiome, including reductions in Bifidobacteria and microbiome diversity scores.

Other research has found blooms in pathogenic bacterial species like Citrobacter, Enterobacter, Klebsiella, and Bilophila, after just 12 weeks of ingestion, in addition to negative impacts on beneficial species, like Bifidobacteria and a wide range of butyrate-producing species. (PMC7538905)

I’m happy to announce that my talk on rebuilding and maintaining a healthy microbiome is being featured as part of the C...
23/01/2026

I’m happy to announce that my talk on rebuilding and maintaining a healthy microbiome is being featured as part of the Cracking the SIBO Code Summit.

If you’d like to watch my talk and the other speakers in the summit, you can use the 🔗 in the comments to register and participate.

Jerusalem artichokes contain an impressive amount of the prebiotic fibers FOS and inulin (a whopping 18% by weight), but...
21/01/2026

Jerusalem artichokes contain an impressive amount of the prebiotic fibers FOS and inulin (a whopping 18% by weight), but many other foods also contain prebiotics.

If you can tolerate foods like these, they are wonderful to have daily to support your beneficial gut microbes.

However, if you notice that prebiotic-rich foods cause symptoms for you (except for increased flatulence, which is normal), working with a gut-savvy clinician to figure out why is key to getting them back into your diet. This can be a slow-going process for some, but it is worth it in the end!

16/01/2026

Dysbiosis shows up in many ways.

Yes, it will often cause more obvious gut symptoms like extra stinky gas, bloating, and distension.

Dysbiosis might also show up as:

- Chronic skin rashes
- Periodontal disease
- Oral thrush
- Frequent yeast infections (vaginal candidiasis)
- Frequent urinary tract infections
- Autoimmune diseases
- Cognitive decline and brain fog
- Joint inflammation

If you have a chronic or inflammatory disease, it's always a good idea to check gut health, as dysbiosis can be a key driver of the disease, even without gut symptoms.

Hot off the press: The oral microbiome may predict pancreatic cancer risk.This study found that certain bacterial and fu...
14/01/2026

Hot off the press: The oral microbiome may predict pancreatic cancer risk.

This study found that certain bacterial and fungal species likely lead to a greater *risk* of pancreatic cancer, not that they are the cause. This is a crucial distinction, primarily because there are steps we can take to improve the oral microbiome and reduce risk!

Leave any questions in the comments section and share with a colleague.

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