Day 20: Probiotics

What are probiotics, and what role do they play in the body? 

Let’s back up a second before talking about probiotics and talk about gut flora.  Inside our digestive tract we have somewhere around 100 trillion bacteria happily living in us.  We’re like a giant high-rise building, and the bacteria are our tenants.  About 7 lbs of “you” is really bacteria that live in your intestines, from your mouth to the other end. Our understanding of gut flora has advanced by quantum leaps in the past decade or so but we’re still just scratching the tip of the iceberg here. 

We now know that our gut flora helps us properly digest our food, protects us from pathogens (harmful microorganisms), helps us detoxify harmful compounds, produces vitamins and other nutrients, keeps our guts healthy, and balances our immune systems.

Probiotics are a culture of “good” bacteria.  Most often when we say the word probiotics we are talking about a supplement (a pill or powder) of beneficial bacteria, but we also use the word probiotics when talking about fermented foods.

 

Gut health and gut flora are a very chicken and egg type of thing.  Bad gut flora causes poor gut health.  Poor gut health causes poor gut flora.  Depending on how severe the dysfunction, sometimes we have to address both in order to get things working properly, sometimes not. There are a variety of reasons that a gut can be messed up.  If the main reason is food-based (i.e., if the person is having food reactions), then a program like the Whole30® is superb for helping. However, a generally Paleo lifestyle (which includes such things as adequate sleep, appropriate exercise, and stress management) along with healthy whole foods would reduce the need for probiotics.