
The Prebiotic Industry Under Strain: What’s Going On and Should You Still Be Supplementing?
In recent years, gut health has taken centre stage in the world of wellness, and for good reason. A thriving gut microbiome is not only key to digestion, but also immunity, mental clarity, and even hormone balance. But as the global conversation around probiotics has matured, so too has the interest in prebiotics — the indigestible fibres that feed beneficial bacteria in the gut.
However, the once-booming prebiotic industry is now under considerable strain. From changing scientific opinions to supply chain issues and consumer confusion, the sector is at a crossroads.
At Sebastian Siebert Supplements, we believe in empowering consumers with the truth. Let’s take a deep dive into why the prebiotic industry is faltering, the arguments for and against their use, and where functional medicine stands in all this.
What Are Prebiotics, and Why Were They So Popular?
Prebiotics are a type of dietary fibre that humans can’t digest, but which serve as food for the beneficial bacteria in the gut. Common prebiotics include inulin, fructooligosaccharides (FOS), galactooligosaccharides (GOS), and resistant starches.
They were quickly adopted into mainstream health circles for their ability to:
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Improve digestion
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Increase bowel regularity
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Boost the efficacy of probiotic supplements
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Support a diverse microbiome
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Aid in immunity and mental health via the gut-brain axis
As more consumers became aware of the gut-health revolution, prebiotics became a popular addition to supplements, functional foods, and beverages. The industry flourished on this enthusiasm.
Why Is the Prebiotic Industry Under Pressure Now?
Despite their early promise, the prebiotic sector is currently facing global strain. Several key issues contribute to this trend:
1. Scientific Uncertainty and Evolving Understanding
Recent research has challenged the blanket efficacy of prebiotics. Not all prebiotics are created equal, and individual responses vary drastically. Some people thrive on inulin or FOS, while others experience bloating, gas, or worsened gut issues — especially those with IBS or small intestinal bacterial overgrowth (SIBO).
Furthermore, emerging spore-based probiotics and postbiotic approaches have shifted focus away from fibre-heavy supplements and towards resilience-building solutions like FLORISH Spore Probiotic with Fulvic Acid.
2. Consumer Confusion and Mixed Messaging
Marketing in the wellness space has often oversimplified gut health. Many consumers took prebiotics in isolation, without addressing underlying inflammation, microbial imbalances, or dietary triggers.
The result? Disillusionment. When people don’t feel better — or feel worse — they lose trust in the product.
3. Supply Chain Disruptions and Rising Costs
Global agricultural challenges, post-pandemic supply issues, and inflation have led to increased production costs for fibres and plant-based ingredients. As many prebiotics are derived from crops like chicory root or legumes, fluctuations in crop yields have also played a role.
Smaller supplement companies have been especially vulnerable, leading to a reduction in product diversity.
4. Competition from Advanced Gut Therapies
Modern gut health strategies have become more sophisticated. Instead of loading up on fibres, integrative practitioners now recommend targeted microbial strains, spore-based probiotics, fermented foods, and fulvic acid to enhance absorption and terrain readiness.
Consumers are beginning to understand that prebiotics are only one piece of the puzzle, not a silver bullet.
The Arguments FOR Prebiotics
Despite the turbulence, prebiotics are not without their merits. Here’s the argument for their continued use — with nuance.
✅ 1. They Feed Beneficial Bacteria
For those with a relatively balanced microbiome, prebiotics can enhance microbial diversity and strengthen beneficial colonies, particularly Bifidobacteria and Lactobacilli.
✅ 2. May Help Regulate Blood Sugar and Appetite
Certain fibres slow down digestion and blunt blood sugar spikes, helping regulate insulin sensitivity and hunger hormones.
✅ 3. Support Colon Health and Bowel Regularity
Prebiotics ferment into short-chain fatty acids (SCFAs) like butyrate, which nourish colon cells and may help reduce inflammation in the gut lining.
✅ 4. Synergise with Probiotics
In theory, prebiotics make probiotics more effective — providing food for them to flourish. This is the premise behind synbiotics — supplements that combine both.
The Arguments AGAINST Prebiotics
On the other hand, here are the compelling reasons why prebiotics may not be ideal for everyone — and why their reputation is currently being questioned.
❌ 1. Can Trigger Gas, Bloating, and Discomfort
Many people, especially those with gut dysbiosis, Candida, SIBO, or IBS, report significant discomfort when taking prebiotic fibres.
Without addressing the root cause of imbalance, feeding the bacteria (even the “good” ones) can create excess fermentation in the wrong parts of the gut.
❌ 2. One-Size-Fits-All Formulations Fall Short
Most prebiotic supplements do not account for individual microbiome differences. A blend that helps one person might harm another.
❌ 3. Unregulated Industry Practices
The term “prebiotic” is loosely regulated, and many companies add fibres to processed foods just to market them as “gut-friendly.” These synthetic additives are often more irritating than helpful.
❌ 4. Not All Gut Bacteria Prefer Fibre
Emerging science shows that not all beneficial microbes thrive on dietary fibres. Some, like spore-forming Bacillus strains, don’t need fibre at all. This shifts the spotlight away from prebiotics and towards more robust, adaptable bacteria — like those in FLORISH.
The Functional Medicine Perspective: It’s All About Terrain
In functional medicine, we don’t treat symptoms in isolation — we look at the terrain of the body. The same is true for gut health.
Rather than simply adding fibre, we ask:
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Is the gut lining intact?
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Is there inflammation or microbial overgrowth?
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Is the body hydrated and mineralised enough to detox?
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Are the right strains of bacteria even present?
This is where FLORISH Spore Probiotic with Fulvic Acid offers a revolutionary approach. Instead of focusing on food for bacteria, we focus on sending in the right species — spore-based probiotics that seed and repair the microbiome, and fulvic acid to transport nutrients and bind toxins.
Prebiotics may still have a place — but they should be introduced after foundational gut healing has occurred.
Where Do We Go From Here?
The fall of prebiotics is not a failure — it’s a sign of maturation in the wellness industry. As we learn more about the microbiome, the role of personalised, intelligent supplementation becomes clearer.
Here are our recommendations:
1. Don’t Rely on Fibre Alone
If you’ve been taking prebiotics but still struggling with symptoms, it’s time to zoom out. Look at the bigger picture: microbial diversity, gut lining integrity, mineral balance, hydration, and inflammation control.
2. Use Spore-Based Probiotics First
Spore-forming strains are resilient, survive stomach acid, and seed the gut with new microbial life — rather than just feeding what’s already there.
Our FLORISH formula includes potent spore strains like Bacillus coagulans, Bacillus subtilis, and Bacillus clausii, combined with fulvic acid to enhance absorption and create a mineral-rich environment for healing.
3. Reintroduce Prebiotics Cautiously — and Through Food First
Once gut balance is restored, prebiotic foods like leeks, onions, asparagus, and green bananas can gently encourage diversity. These are preferable to synthetic supplements in most cases.
4. Prioritise Functional Foundations
Hydration, fulvic acid, clean water, mineral-rich foods, and stress management will do more for your microbiome than any single supplement.
If your internal terrain is compromised, no amount of fibre will fix it.
Final Thoughts: Quality Over Quantity in Gut Healing
The decline of the prebiotic industry doesn’t mean prebiotics don’t work — it means the conversation is evolving. We are now moving away from gimmicks and generalisations and toward individualised, root-cause-driven strategies.
At Sebastian Siebert Supplements, we champion intelligent supplementation that supports your body’s innate healing intelligence. Our FLORISH Spore Probiotic with Fulvic Acid is designed to work with your body, not against it.
If you’ve struggled with bloating, unpredictable digestion, or “gut fatigue” from over-supplementation, consider stepping back from fibre-heavy approaches and trying a spore- and mineral-based protocol that restores function from the inside out.
Ready to Reinvent Your Gut Health?
FLORISH Spore Probiotic with Fulvic Acid is your partner in microbiome repair, without the discomfort of gas, bloating, or fermentation. Discover how spore-based probiotics and fulvic acid can rebuild your gut from the roots up.
Visit our online store or speak to your integrative practitioner about starting the FLORISH protocol today.