10 Best Prebiotic Supplements (2025 Review Updated)

Here's how we chose the best prebiotic supplements.

Ingredient Analysis

Our team of nutrition experts examines the type of prebiotic fibers used, such as inulin, fructooligosaccharides (FOS), galactooligosaccharides (GOS), and others. We verify that the supplements contain effective dosages based on the latest research and ensure there are no unnecessary fillers or artificial additives.

Brand Reputation

We assess the reputation of the brand producing the supplement. This involves researching their history, manufacturing practices, and commitment to quality. Brands that engage in third-party testing and have certifications such as Non-GMO, Gluten-Free, or Organic score higher in our evaluation.

Consumer Experience

We gather consumer reviews and testimonials to understand the supplement's impact on digestive health, any side effects experienced, and overall satisfaction with the product. We also conduct a survey among our community members who have tried the supplements to gather more detailed insights.

Efficacy Trials

Our team conducts a controlled trial with volunteers from our community to monitor the effects of the supplements over a set period. Participants report on various health markers, including digestive comfort, bowel movement regularity, and any changes in symptoms like bloating or gas.

Cost-Effectiveness

We analyze the cost per serving of the supplements to determine their value for money. A higher price tag doesn't always mean a better product, so we balance cost with the quality and concentration of active prebiotic compounds.

To pick the best prebiotic supplement, consider factors such as the types of prebiotics added, the dosage amount, the quality, and the brand's reputation.

Unlike probiotic supplements, there are not hundreds of different types of prebiotics. You probably will notice that different products list specific marketing names for their fiber blends.

But in most cases, they use just a handful of different types of fiber sources.

The reason is that different bacteria species aren't actually all that picky when it comes to fiber, so a few types might actually be more than enough to rebalance your gut flora and possibly stabilize your blood sugar [6].

You’ll see a value of colony forming units on probiotics, but prebiotics don’t have such a measure. Instead, they will focus more on the strains of bacteria they feed.

The higher the quality, the more effective it should be at feeding your gut microbiota and protecting your gut lining as well.

One ingredient that is commonly used where quality apparently plays a critical role is burdock root.

In many of the cheaper supplements, you might find that they just don’t cause the same benefits, which is often down to low-quality sources.

To increase prebiotics in your diet, consider adding foods like green bananas, spinach, Jerusalem artichoke, garlic, dandelion, and konjac root.

During our conversation with a dietitian, we also got onto some interesting topics about getting natural prebiotic food products into your diet.

Yes, there are some foods that would do the same as supplements. But as you’ll find out, a lot of them are not the easiest to buy in stores or add to your meal recipes.

So, what are prebiotic foods?

Here are some ideas.

Many athletes turn to bananas as a source of slow-release energy and potassium to help with hydration.

Usually, that means nice yellow ripe bananas. Not the green ones that are tough to peel.

But if you eat some unripe green bananas, then you could also be getting some fructooligosaccharides, which is a good prebiotic fiber [9].

These are neither from Israel nor are they even related to the traditional artichoke.

But this inulin-rich food could be one of the best natural ways to get fiber into your system [12].

We’ve just found it quite difficult to buy in most stores, so you may need to shop around a bit.

Yup, it’s those weeds you probably try to get rid of in the garden. But the leaves on these weeds may be full of fiber, antioxidants, minerals, and vitamins [13].

“Some researchers have proposed that dandelion could help people achieve their loss of weight goals. This is based on the plant’s ability to improve carbohydrate metabolism and reduce fat absorption.”

 

- Jenna Fletcher, health and wellness writer.

This root tuber seems to contain about 40% glucomannan fiber, which you’ll often find in fat loss supplements.

It should work well to keep you feeling full for a lot longer, and it may also feed some important bacteria and help you with blood sugar control [14,15].

After weeks of meticulous testing and research, my top recommendation for a prebiotic supplement is 1MD PrebioMD.

This supplement stood out not only for its efficacy, which I noticed within weeks, but also because it didn't cause any bloating — a common issue with many prebiotics.

The bulk discounts are a bonus, making it a cost-effective option for long-term use. While the proprietary blend means you can't see the exact amounts of each ingredient, the results spoke for themselves.

It's a product I've come to trust for maintaining my gut health and one that I believe could make a significant difference for others seeking a reliable prebiotic.