Condition in which there are excess bacteria in the small intestine.
Small Intestinal Bacterial Overgrowth (SIBO) occurs when excessive bacteria migrate into the small intestine - an area that normally contains very few microbes compared to the colon. In a healthy gut, the stomach’s acidity, bile flow, pancreatic enzymes, and intestinal motility work together to prevent bacterial accumulation. When any of these protective mechanisms are altered, dysbiosis develops, leading to a wide range of uncomfortable symptoms and system-wide effects.
While the microbiota plays critical roles in digestion, nutrient metabolism, bile acid transformation, short-chain fatty acid (SCFA) production, and immune regulation, an overgrowth in the small intestine disrupts this balance and contributes to inflammation, intestinal permeability, and multisystem dysfunction. The gut also communicates directly with the brain via the gut–brain axis, explaining why SIBO impacts mood, cognition, and neurological health.
If you feel bloated or uncomfortable after eating foods that “everyone says are healthy,” such as:
this strongly suggests dysbiosis or SIBO.
Healthy fermented foods contain living bacteria and prebiotic fibers. A balanced gut tolerates these beautifully - but when bacteria are overgrown in the small intestine, they ferment these foods too early.
Even people on a carnivore diet can develop or worsen SIBO, because SIBO is not caused only by carbohydrates - it is driven by weak digestion, low stomach acid, poor bile flow, low pancreatic enzymes, and chronic stress. When stomach acid is inadequate, meat is not fully broken down - especially if chewing is poor - and undigested protein enters the small intestine, where it ferments and feeds bacterial overgrowth. Carnivore diets are also very high in fat, and if bile production is insufficient - common in those with gallbladder issues, years of low-fat dieting, hormonal imbalance, or high stress - fat is poorly absorbed and contributes to bloating, nausea, diarrhea, and dysbiosis.
Many carnivore eaters also have enzyme insufficiency, which further increases fermentation. This is why many people feel worse when starting carnivore: the diet exposes underlying digestive weaknesses rather than resolving them.
Bacterial concentrations in the healthy small intestine range only between 10²–10⁵ CFU/mL. When levels exceed this threshold, symptoms escalate. Clinical research shows significantly increased SIBO risk among individuals with:
This strong association reflects the deep connection between the microbiota, intestinal permeability, and systemic inflammation.
Low stomach acid (hypochlorhydria or achlorhydria) is one of the most important—and most overlooked - risk factors for SIBO. Without adequate gastric acid, bacteria survive and migrate into the small intestine.
Proton pump inhibitors (PPIs) are a major contributor. A systematic review and meta-analysis found:
Another study in children taking 20 mg of omeprazole for 4 weeks found:
This suggests that PPIs directly disrupt the protective gastric environment. Unless strongly medically indicated, reducing or tapering PPI use may be beneficial for gut health.
Treating SIBO is not about supplements or antibiotics alone - it requires temporarily changing the environment in which the overgrowth thrives. The most effective dietary tool during treatment is the low FODMAP diet, because it reduces rapidly fermentable carbohydrates that feed bacteria in the small intestine; however, this diet must be short-term since long-term restriction carries risks for nutritional inadequacy, further microbiome imbalance, and unnecessary food fear.
The low FODMAP diet is essentially an elimination-and-rechallenge protocol: high-FODMAP foods are removed during an “induction phase” (typically 4–6 weeks, though many patients experience improvement within a week), and then gradually reintroduced to determine individual trigger foods while restoring a more diverse and sustainable diet long-term.
SIBO individuals often benefit from:
Common deficiencies: A, D, E, K, B12, thiamine, niacinamide, iron, calcium
These must be corrected for full recovery.
A COMPREHENSIVE, MULTI-MECHANISM APPROACH TO SIBO TREATMENT
Treating SIBO requires much more than killing bacteria. SIBO develops because foundational digestive and immune processes are impaired: low stomach acid, poor bile flow, pancreatic insufficiency, inflammation, impaired motility, weakened epithelial lining, and biofilm formation. Because of this, successful SIBO treatment must address all mechanisms simultaneously, not just microbial overgrowth. The HORMUNITY® SIBO Program integrates targeted antimicrobials, digestive restoration, motility support, mucosal healing, and immune regulation, mirroring the comprehensive approach supported in clinical research.
ANTIMICROBIALS
SBO Relief™, Dysbiofix Botanicals™, and SBO Clear Oregano Oil™ provide broad-spectrum antibacterial, antifungal, and anti-biofilm activity. These botanicals reduce harmful organisms, disrupt biofilms, calm inflammation, and help rebalance the microbiome - mirroring the research-backed herbal combinations shown to match rifaximin in effectiveness.
BIOFILM & DETOX SUPPORT
NAC Glutathione Precursor™ breaks down biofilms, increases glutathione, reduces oxidative stress during die-off, and supports liver detoxification of bacterial toxins.
BILE FLOW & FAT DIGESTION
Liver & Gallbladder Synergy™ promotes bile production, fat digestion, and absorption of fat-soluble vitamins - all commonly impaired in SIBO. Better bile flow also provides natural antimicrobial protection and reduces bloating or nausea after fatty meals.
STOMACH ACID & ENZYME SUPPORT
Betaine HCL + Pepsin™ restores gastric acidity to improve protein digestion and prevent fermentation of undigested food. Pancreatin Digestive Enzymes™ enhance the breakdown of fats, proteins, and carbohydrates, reducing gas and supporting proper nutrient absorption.
INTESTINAL LINING & INFLAMMATION SUPPORT
GI-Integral™ provides clinically effective nutrients to soothe and rebuild the intestinal lining, support healthy inflammatory response, restore mucosal integrity, and strengthen the gut-immune barrier. It contains no flavors, sweeteners, gums, or allergens - just clean, evidence-based GI-supporting ingredients.
IMMUNE & BARRIER REGULATION
Micellized Vitamin D3™ tightens intestinal junctions, balances immune function, and supports a healthy inflammatory response - often deficient in SIBO due to fat malabsorption.
MITOCHONDRIAL ENERGY & MOTILITY SUPPORT
MITO Energy Boost™ provides targeted mitochondrial nutrients that support ATP production. When cellular energy is low, motility slows, bile thickens, and the small intestine becomes a stagnant environment where overgrowth thrives. Supporting mitochondrial function helps improve motility, enhance bile flow, strengthen detoxification, and ensure the body has the energy required to eliminate toxins and repair the gut lining during treatment.
To support your comfort and safety, begin with one supplement and introduce the next every three days. This gradual approach makes it easier to recognize which product may be causing a reaction. If at any point you feel unwell or notice symptoms that concern you, pause the protocol and reassess.
Consult your healthcare provider before use if pregnant, nursing, or taking medications.
These statements have not been evaluated by the FDA.
This product is not intended to diagnose, treat, cure, or prevent any disease.
Dosage & Timing
Take 2 teaspoons × 1/day on an empty stomach between meals or before bed. Dissolve in water.
Dosage & Timing
Start with 1 cap at first bites of protein meals. Increase gradually until warmth, then reduce by 1. Max ~3000 mg/meal.
Betaine HCL Pepsin is a foundational supplement in SIBO treatment because adequate stomach acid is essential for protein digestion, microbial control, and preventing fermentation in the small intestine. However, HCL must be used correctly and is not appropriate for everyone.
If unsure, consult your healthcare practitioner before using HCL.
Your HCL dose depends on the amount and type of animal protein in the meal.
This is why there is no single standard dose – it changes meal by meal.
General rule: more dense animal protein = more HCL needed.
You must find your individual tolerance because stomach acid requirements differ for every person and every meal.
STEP 1 - START LOW
At your next animal-protein meal, take: 1 capsule of HCL Pepsin with the first bites of food.
STEP 2 - OBSERVE
If you feel nothing, next meal increases to: 2 capsules.
If still nothing, next meal: 3 capsules.
…and so on.
STEP 3 - STOP AT THE “BURN”
When you reach the point where you feel: mild warmth / slight burning / heat in the stomach – you have exceeded your ideal dose slightly.
STEP 4 - ADJUST
At the next identical meal, reduce by 1 capsule.
That is your correct dose for that type of meal.
SIBO is a complex, multifactorial condition that cannot be resolved with antimicrobials alone. Successful treatment must address the root causes: impaired motility, low stomach acid, weak bile flow, mucosal inflammation, pancreatic insufficiency, post-infectious changes, structural restrictions, and lifestyle factors such as stress, poor sleep, and irregular eating patterns.
The HORMUNITY® SIBO Protocol is designed as a comprehensive, evidence-aligned program that supports each of these mechanisms simultaneously - using targeted botanicals, mitochondrial support, bile stimulators, acid and enzyme replacement, mucosal repair nutrients, immune modulators, and vitamin D optimization. This multifaceted approach reflects the current scientific understanding of SIBO as a disorder involving microbial imbalance, impaired digestive physiology, and disrupted intestinal barriers, not just bacterial excess.
Ongoing lifestyle support - structured meals, mindful eating, low-FODMAP diet during the antimicrobial phase, stress reduction, restorative sleep, and motility-friendly habits - helps maintain long-term balance and prevents recurrence. The evidence shows that integrative botanical therapy is comparable to rifaximin, that low stomach acid and impaired bile flow strongly contribute to SIBO, and that addressing motility, inflammation, and nutrient deficiencies significantly improves clinical outcomes. With the right combination of targeted supplements, digestive restoration, and individualized lifestyle adjustments, the small intestine can regain balance, symptoms reduce, and long-term gut resilience is restored.
Consult your healthcare provider before use if pregnant, nursing, or taking medications.
These statements have not been evaluated by the FDA.
This product is not intended to diagnose, treat, cure, or prevent any disease.
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