Supergut is one of the fastest-growing gut health supplements in the US. The company describes prebiotics as "Nature's Ozempic," and sells both prebiotic powders and prebiotic bars.

But does prebiotic supplementation actually cause weight loss as the company claims? Are Supergut's supplements healthy? Do they contain any questionable additives? And is Supergut better or worse than popular gut health supplements like Seed?

In this article we'll answer all of these questions and more, as we analyze clinical research on prebiotic supplementation to determine if it can cause weight loss, and if so, how much.

We'll also analyze the ingredients in Supergut's most popular supplements to give our take on whether or not they're healthy, and compare Supergut to other popular gut health supplements to pick our winners (and losers).

Key takeaways:

• Fiber intake predicts weight loss in humans
• Supergut's shakes contain ingredients we consider unhealthy
• We don't currently recommend Supergut

Do Prebiotics Cause Weight Loss?

The association between prebiotic supplementation and weight loss has been studied in clinical trials.

A 2022 medical review on fiber supplementation in overweight and obese individuals concluded the following:

"The participants with dietary fibre supplementation showed a significantly higher reduction in body weight."

Average weight loss in all surveyed trials was around three pounds, but most of the trials were only around 12 weeks long.

A clinical study published in The Journal of Nutrition reported that fiber intake predicted dietary weight loss in adults. The more fiber consumed, the greater the weight loss.

It's also worth noting that our ancestors consumed significantly more fiber than humans in developed nations, as we documented in our do fiber gummies work article.

Based on the available research, we consider prebiotic fiber supplementation likely to cause weight loss.

Is Supergut Healthy or Unhealthy?

Supergut sells a variety of fiber-based products.

We consider the unflavored fiber powder to be healthy, and the flavored shakes to be somewhat less healthy. We'll explain why below.

The ingredients in Supergut's Chocolate Shake are shown below:

image source: https://supergut.com/

While this shake does contain 15 grams (g) of fiber, which may support weight loss, it also contains a number of additive ingredients that we consider unhealthy.

Natural flavor is a broad, categorical descriptor that fails to describe the specific flavoring chemicals used. 

Natural flavor may include chemicals such as preservatives, according to a 2009 medical review.

Vitamin-Mineral Blend contains a large number of synthetic vitamin additives.

We haven't come across any clinical evidence that supplemental vitamins and minerals are beneficial to health in individuals without a deficiency in those vitamins and minerals, and we don't understand the inclusion of this blend in a prebiotic shake.

Folic acid is one of the vitamins in the blend, and is clinically shown to be associated with a slightly increased risk of prostate cancer when supplemented.

The ingredients in Supergut's Prebiotic Mix (The Gut Healthy Prebiotic Shake) are shown below:

image source: https://supergut.com/

A blend of resistant starch prebiotic fibers is the only ingredient in this formulation. There are no questionable additives.

Resistant starch intake is clinically shown to support optimal gut health, as we documented in our Standard Process reviews article.

We consider Supergut Gut Healthy Prebiotic Shake to be substantially healthier than the flavored shakes, and we currently recommend this product.

Supergut vs. Popular Gut Supplements

Here's how Supergut compares to other popular gut health supplements in terms of formulation quality, in our opinion:

Seed

Seed's probiotic is clinically proven to support optimal gut health (in multiple clinical trials).

We give seed the advantage from a potential efficacy perspective due to its clinical backing.

Winner: Seed

Armra

Armra colostrum is a supplement made from milk produced by mammals prior to a baby's birth.

It's clinically shown to reduce intestinal permeability, and the unflavored version is free of any unhealthy additives.

Given that Supergut's prebiotic mix also offers an unflavored version free of any unhealthy additives, we consider the two similarly healthy & effective.

Winner: Tie

Silver Fern Brand

Silver Fern Brand Ultimate Probiotic has various research-backed probiotic strains with differing positive effects on digestive health.

This supplement has no unhealthy additives.

We give Silver Fern Brand the (slight) advantage from a health perspective, given its lack of unhealthy flavoring ingredients.

Winner: Silver Fern Brand

Our Clean Gut Health Picks

MBG Organic Fiber Potency+ is our top gut health supplement.

MBG Organic Fiber Potency+ contains 100% soluble fiber, which was described as "one of the most important nutrients for the gut microbiota" in a clinical review published in the Molecules journal.

Manukora MGO 850+ is our top whole food gut health pick.

A 2024 clinical trial reported that manuka honey ingestion "correlates with beneficial modulation of gut microbiota composition."

Both of the products recommended in this section are free of ingredients that we consider to be unhealthy.

Supergut Pros and Cons

Pros:

• Resistant starch can support optimal gut health
• Fiber supplementation can cause weight loss
• Prebiotic Mix supplement has a healthy formulation

Cons:

• Shakes and bars contain natural flavor
• Doesn't appear to be clinically tested
• Shakes contain a large number of added vitamins and minerals
• Less healthy than some competitors

Conclusion

Supergut's unflavored prebiotic mix is one of the healthiest fiber supplements we've reviewed to date on Illuminate Health.

This supplement contains resistant starch, which may have uniquely positive benefits on gut health compared to other types of prebiotics.

We don't consider Supergut's shakes and bars to be as healthy, because they have a large number of additive ingredients like natural flavor and synthetic vitamins.

There is a significant amount of clinical research showing that fiber supplementation can cause weight loss, so we have no problem with Supergut's "Nature's Ozempic" marketing catchphrase.

We consider Supergut to be equivalently effective and healthy to Armra, but less likely to be effective than Seed, and less healthy than Silver Fern Brand.