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Is “Leaky Gut” Real? A Fun Dive into Gut Health

Updated: May 24


Writer: Julie Smullen | Functional Nutrition Consultant, Certified GAPS Practitioner, Certified GAPS Coach & SmartDNA Practitioner


 This article is for educational purposes only and does not constitute medical advice.


The term “leaky gut” sparks quite a bit of debate! Some see it as a key player behind chronic health problems, while others are skeptical. So, let’s explore the science—and a little wisdom from gut health experts like Dr. Natasha Campbell-McBride.


What is Leaky Gut?

Imagine your gut lining as a super-secure wall. It keeps harmful stuff like toxins and bad bacteria out of your bloodstream while letting nutrients pass through. When this wall is damaged, harmful particles can sneak in—this is what we call "leaky gut."


Dr. Natasha Campbell-McBride explains: “When the gut lining is damaged, it lets toxins, food particles, and bad bacteria into the bloodstream. This causes inflammation, messes with the immune system, and harms the body, including the brain.”

She links leaky gut to everything from autoimmune diseases to mental health issues like anxiety, depression, and even ADHD. Her solution? Heal the gut with the right diet and lifestyle changes.


The Gut-Brain Connection

Did you know your gut and brain are like BFFs that talk all day? This “gut-brain axis” helps with digestion and even affects your emotions, decisions, and motivation. If the gut is unhappy, it can throw your mood and mental health off balance.


Researchers like Dr. Alessio Fasano also back the idea of leaky gut, pointing to a protein called zonulin. Zonulin controls how tightly the cells in your gut lining stick together. Too much zonulin? Your gut wall opens up, leading to—you guessed it—leakiness!

Fasano says: “The only logical explanation for chronic inflammation is that the immune system is chronically exposed to enemies due to the leakiness of the gut barrier.”


What Can You Do About It?

The good news is you can help your gut heal! Eating gut-friendly foods, reducing stress, and ditching processed junk can all make a big difference.


Final Thoughts

While the science of leaky gut is still evolving, many experts agree that taking care of your gut is essential for overall health. As Dr. Campbell-McBride and Dr. Fasano show us, a healthy gut may be the key to reducing inflammation, improving mental health, and preventing chronic illnesses.


Your gut’s been working hard for you—maybe it’s time to return the favour!


If you want to dive deeper into improving your gut health or need personalized advice, feel free to contact me! Together, we can explore ways to support your gut and enhance your overall well-being.


Disclaimer: This blog is intended for informational and educational purposes only. It does not provide medical advice, diagnosis, or treatment. Supplements should be used responsibly and under the guidance of a qualified health professional. Always consult your healthcare provider before starting any new supplement or health program.


References:

  1. Campbell-McBride, N. (2004). Gut and Psychology Syndrome. Yellow Book.

  2. Cryan, J.F., et al. (2019). The Microbiota-Gut-Brain Axis. Physiological Reviews.

  3. Fasano, A. (2020). Gluten Freedom and Leaky Gut. Mitchell Medical Group.

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