Postbiotics for the Gut, Body, and Brain

Last week’s column suggested we are minnows in the grand life adventure. This week we’ll look at little beings in our bellies that seem to have outsized influence. What is it about these microscopic components of the gut-brain connection that leads us to thinking that a postbiotic supplement might be a very good investment.

The gut microbiome is like a neighbourhood of friends you carry around in and on your body for your entire life. Just as the environment outside your body and the way you live your life have consequences for your well-being, this gooey world in your gut has enormous impact on your health, from head to toe and cradle to grave.

What exactly is it? The gut-brain microbiome refers to a bustling two-way street between the gastrointestinal tract and the brain, fueled in part by the vast community of microorganisms residing in the gut.

In 1972, microbiologist Thomas Luckey estimated the human gut is home to 100 trillion microorganisms – bacteria, viruses, fungi, and more. They make mighty contributions to brain health. About 90-95% of the body's serotonin, a neurotransmitter associated with mood regulation, is produced in the gut.

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