Why should you take a prebiotic?

When it comes to gut health, you may already be familiar with the benefits of probiotics, but what about prebiotics? There are many reasons you should take a prebiotic. For example, Inner Life!’s prebiotic Arabinoxylan is clinically proven to support not only digestive health but also immune health. Read below for more on the important role of prebiotics in the gut microbiome.

What is a prebiotic good for?

Fueling the microbiome

Your gut is home to trillions of microorganisms including bacteria, which is why we call it the “gut microbiome.” Probiotics are good bacteria that fight off bad bacteria in the gut and help establish a healthy microbiome. It’s crucial to maintain a healthy balance of good bacteria versus bad bacteria. When the gut microbiome becomes unbalanced, you are more prone to getting sick, feeling tired, or experiencing digestion issues.   

Prebiotics, such as those found in Inner Life!, nourish the good bacteria already existing in the gut and optimize their growth and functions. They do this by supplying the crucial, non-digestible ingredients that fuel the growth of healthy bacteria.

The Arabinoxylan found in Inner Life! is a prebiotic fiber that is clinically proven to promote the growth of beneficial bifidobacteria in your gut.

It’s important to note there are an array of probiotic strains as well as many prebiotic dietary fibers, and when it comes to gut health, it is not a one size fits all formula. This means some probiotics work better with specific prebiotics, and vice versa. This is why it is essential to have a diet diverse in many sources of gut-healthy foods rich in probiotics and prebiotics.

Digestive health

The scientific definition of a prebiotic is “nondigestible food ingredients that serves as substrates to promote the colonic growth and/or activity of selection health-promoting bacteria.” Prebiotics are dietary fibers found in grains, vegetables, and fruits. The enzymes in our gut cannot break these fibers down or digest them. As a result, prebiotics serves as the food for the good bacteria helping to promote a healthy microbiome.

Adequate dietary fiber intake is not only crucial in maintaining a balanced microbiome but also in maintaining overall intestinal health. Unfortunately, most Americans don’t come close to eating enough fiber in their diet.

Inner Life! provides a convenient way to get 3.8 grams of the prebiotic fiber, Arabinoxylan. That’s 11% of your daily recommended intake. Just add it to water and enjoy!

Immune health

Did you know 70% of our immune system is found in the gut? Maintaining a healthy and strong microbiome is crucial for the immune system.

The Arabinoxylan found in Inner Life! is clinically proven to promote the growth of beneficial bifidobacteria. The increased presence of this beneficial bacteria can help inhibit the growth of other pathogenic bacteria. This is important as clinical research shows that imbalances in the microbiota may disrupt the normal functioning of our immune responses.

Simply put, adding more prebiotic fiber to your diet creates a healthy gut and a healthy gut leads to better immune function. If you want a stronger immune system, adding more fiber to your diet can help.

What is the best prebiotic to take?

There are food sources of prebiotic fiber including beans, green bananas, artichokes, asparagus, garlic and whole grains. While these foods can serve as a good base for a gut healthy diet, a high quantity of them is needed to achieve a prebiotic effect (i.e., promote the growth of good bacteria). For example, you would need to consume 15 green bananas to receive prebiotic benefits. The prebiotic fibers in these foods can also promote the growth of unwanted bacteria.

Many popular prebiotics fibers used in supplements, such as inulin commonly derived from chicory root or dandelion roots, are also needed in higher quantities to achieve prebiotic effects. These prebiotics can also cause GI distress including gut discomfort, gas and bloating.

This is why we chose the prebiotic fiber Arabinoxylan for Inner Life!. Arabinoxylan is clinically proven to support digestive health and immunity at a low dose of 2.2 grams a day. In addition, Arabinoxylan is exceptionally well-tolerated and gentle on the stomach. It doesn’t cause the gut discomfort, excess gas and bloating we’ve come to associate with other fiber supplements.

Check out our chart below to learn more about how Arabinoxylan compares to other prebiotics in terms of potency, tolerability in the gut and the selectivity in promoting only good bacteria.

Arabinoxylan (Inner Life!)


(Chicory Root, Dandelion Greens)



Amount needed  to achieve prebiotic benefits

2.2 grams

5 grams

400 grams (1 pound)

15+ bananas

GI Symptoms

(Bloating, gut discomfort)

Very Little

Yes, especially with higher doses

Yes, especially with higher doses

Yes, especially with higher doses

Promotes growth of good bacteria

Yes, specifically Bifidobacterium species


Yes, but also can promote growth of bad bacteria (not selective)

Yes, but also can promote growth of bad bacteria (not selective)

Inner Life! is the first and only prebiotic brand to use Arabinoxylan. Our drink mix is made with only the best ingredients, meaning no artificial sweeteners, colors, or preservatives and is conveniently packaged in single-serve sticks. Inner Life! is also gluten-free as the fiber comes from the wheat stalks, not the grain.

About the Author

Hannah Ackermann, RD
Communications Manager at Inner Life!
As a Registered Dietitian, Hannah uses her expertise in food and nutrition to tell Inner Life!’s ingredient story. Hannah is passionate about gut health and helping educate consumers about healthy eating.

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