Learn more about the differences between prebiotics and probiotics and how they may support digestion, immunity, and gut health
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If you've ever looked up ways to improve digestion, you may have stumbled upon the term "gut health." More and more research is exploring the unique impact that gut health has on bodily functions, from nutrient absorption to immune system strength. But with all the chatter, it’s easy to get lost — especially when terms such as "prebiotics" and "probiotics" are thrown around like they’re interchangeable.
Spoiler alert: they’re not the same thing.
Although both play important roles in maintaining a balanced gut environment, they work in different ways. In this article, we’ll break down what prebiotics and probiotics actually are, where you can find them, and how they may support your health.
Before we unpack what probiotics are, it's important to understand the "gut microbiome." Put simply, this refers to a community of trillions of microbes that live in your digestive tract. While the idea of microbes inside our bodies might not seem appealing, many of them are actually good for us. Healthy microbes and bacteria may help support smooth digestion, regulate the immune system, and even improve mood and mental health.
But what happens if this delicate ecosystem is disrupted? A loss of healthy bacteria can trigger dysbiosis, or an unhealthy gut microbiome, leading to digestive issues and a weakened immune system. That's where probiotics come in.
Probiotics are live microorganisms (mainly bacteria and some yeasts) that may help restore or maintain the gut microbiome balance, especially after illness or stress. Common sources of probiotics include:
It's worth noting that probiotics don't work alone. To thrive, they need the help of prebiotics.
Prebiotics are a type of dietary fiber that your body can't digest. Fortunately, your gut microbes are more than happy to digest them for you. If probiotics are the friendly bacteria in your gut, prebiotics are essentially their favorite snack. Prebiotics pass straight through the digestive system, acting as fuel for the bacteria in your gut.
By feeding the good bacteria, prebiotics may help create a healthier, more balanced gut environment. You can find them naturally in a variety of plant-based foods, including:
Because prebiotics and probiotics both support gut health, they often get mixed up. However, they're two very different things. A helpful analogy is to think of your gut like a garden — probiotics are the seeds, and prebiotics are the fertilizers that help those seeds grow. Here are some key differences:
When it comes to gut health, prebiotics and probiotics may work best as a team. Together, they may offer the following benefits:
It's important to remember that everyone's gut microbiome is unique, which means results can vary. In general, a healthy gut works best alongside a balanced lifestyle that includes a varied diet, regular movement, adequate sleep, and stress management.
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As digestive wellness becomes increasingly popular, more people are exploring the benefits of prebiotics and probiotics. Some scientists are even going as far as collecting stool samples from elite athletes in hopes of turning their microbiomes into the next big probiotic pill.
Fortunately, there are much simpler (and more appetizing) ways to potentially support your gut health at home. Here are a few practical tips to get you started:
Again, everyone is different, and there's no way to guarantee benefits. However, if you're looking for simple ways to potentially improve digestion, these dietary changes are definitely worth a shot!
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