Probiotics vs. Prebiotics

When it comes to supporting digestive health, probiotics and prebiotics are two terms you’ve probably heard — but may not fully understand. While they sound similar, they play very different roles in maintaining a healthy gut. Let’s take a closer look at what each one does and why both are important.

Probiotics vs. Prebiotics: What’s the Difference?

• Probiotics are live beneficial bacteria that help balance the gut microbiome. They can be found in foods like yogurt, kefir, kimchi, sauerkraut, and in dietary supplements.
• Prebiotics are a type of dietary fiber that serve as food for the “good” bacteria in your gut. Common sources include bananas, garlic, onions, asparagus, oats, and beans.

In simple terms: probiotics add good bacteria to your gut, while prebiotics help feed and strengthen them.

Benefits for Gut Health

Together, probiotics and prebiotics can help create a more balanced and resilient digestive system. Research suggests that they may:

• Support healthy digestion by aiding the breakdown of food and absorption of nutrients
• Improve regularity and help manage symptoms like constipation or bloating
• Strengthen the gut barrier to protect against harmful bacteria
• Support the immune system, as much of the body’s immunity is linked to the gut
• Enhance treatment of certain conditions, such as irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and antibiotic-associated diarrhea

Finding the Right Balance

Both probiotics and prebiotics can be beneficial, but balance is key. Instead of relying solely on supplements, aim to include a variety of fiber-rich foods and fermented foods in your daily diet. For some individuals with underlying gastrointestinal conditions, the type and amount of probiotics or prebiotics may need to be tailored to avoid worsening symptoms.

Final Thoughts

Probiotics and prebiotics work best together — one introduces healthy bacteria, and the other helps them thrive. If you’re considering adding them to your routine, especially if you have chronic digestive symptoms, it’s best to talk with your gastroenterologist. Together, you can determine the right approach to support your gut health and overall well-being.

If you have concerns about your gut health, don’t hesitate to text 864-589-6714 or schedule a visit with one of our providers.

Written by Dr. Matthew Barnes, Gastroenterologist