Bacillus Coagulans
Also known as: Bacillus coagulans, Lactobacillus sporogenes, spore-forming probiotic bacterium
Overview
Bacillus coagulans is a spore-forming, gram-positive bacterium that produces lactic acid. Naturally found in soil, fermented foods, and the GI tracts of animals and humans, it's primarily used as a probiotic supplement to improve gastrointestinal health. Its spore-forming ability allows it to survive harsh gastric conditions, enhancing its viability and colonization in the gut. Research has shown its efficacy in managing conditions like irritable bowel syndrome (IBS), functional gas, and abdominal distension. The bacterium modulates gut pH and inhibits pathogenic bacteria. Evidence includes systematic reviews, network meta-analyses, and multiple randomized controlled trials (RCTs) with adequate sample sizes and controls, making it a credible option for gastrointestinal health support.
Benefits
Bacillus coagulans has demonstrated significant benefits in improving IBS symptoms, including abdominal pain, straining, and overall symptom relief. A network meta-analysis ranked B. coagulans as the most effective probiotic for IBS symptom relief over 8 weeks, showing statistically significant improvements compared to placebo and other probiotics. It also reduces functional gas and abdominal distension symptoms in adults. Furthermore, it improves quality of life and depressive symptoms in IBS patients with comorbid major depressive disorder, with significant reductions in depression rating scales and inflammatory biomarkers. These benefits are primarily observed in adults with IBS, including those with comorbid psychological symptoms, and individuals experiencing functional gastrointestinal symptoms such as gas and bloating.
How it works
Bacillus coagulans works primarily by producing lactic acid, which modulates gut pH and inhibits the growth of pathogenic bacteria. It interacts with the gastrointestinal tract by modulating the gut microbiota, enhancing barrier function, and reducing inflammation. The spore-forming nature of B. coagulans allows it to survive the acidic environment of the stomach, enabling it to colonize and exert its beneficial effects in the intestines. It may also influence gut motility and immune responses. Known molecular targets include inflammatory pathways, such as the reduction of myeloperoxidase, and potentially neurotransmitter modulation related to gut-brain axis effects.
Side effects
Bacillus coagulans is generally regarded as safe and well-tolerated. Common side effects are minimal, with no significant adverse events reported in high-quality RCTs. Uncommon side effects, occurring in 1-5% of users, may include mild gastrointestinal discomfort, although this is anecdotally reported and not statistically significant. Serious adverse effects are rare, with no documented cases in controlled studies. While no significant drug interactions have been reported, caution is advised when used with immunosuppressants due to its probiotic nature. Immunocompromised patients should consult healthcare providers before use. Limited data are available for pregnant or pediatric populations, with most studies focusing on adults.
Dosage
Typical effective doses of Bacillus coagulans range from 1 × 10^9 to 2 × 10^9 CFU daily, as demonstrated in RCTs. There is no established maximum safe dose, but doses up to 2 billion CFU daily have been well-tolerated. Daily dosing for at least 8 weeks is recommended to achieve symptom relief. It is available in capsule or powder form, and its spore-forming nature ensures stability and viability in various formulations. The spore form enhances survival through stomach acid, improving delivery to the intestines. No specific cofactors are required, but it may be combined with prebiotics to support colonization.
FAQs
Is Bacillus coagulans safe for long-term use?
Current evidence supports safety for at least 8 weeks; longer-term data are limited but no significant safety concerns have emerged.
How quickly can benefits be expected?
Symptom improvements are typically observed within 4 to 8 weeks of consistent use.
Can it be used alongside other probiotics?
Yes, it may be combined with other probiotics, and some evidence suggests potential synergistic effects.
Does it require refrigeration?
Due to its spore-forming ability, Bacillus coagulans is generally shelf-stable and does not require refrigeration.
Is it effective for all IBS types?
Most evidence pertains to IBS with predominant abdominal pain and bloating; effects on other IBS subtypes require further study.
Research Sources
- https://pubmed.ncbi.nlm.nih.gov/37686889/ – This study investigates the impact of probiotics on Irritable Bowel Syndrome (IBS) and Inflammatory Bowel Disease (IBD). It provides insights into how probiotics can modulate gut microbiota and influence inflammatory responses, potentially alleviating symptoms associated with these conditions.
- https://pmc.ncbi.nlm.nih.gov/articles/PMC9010660/ – This article discusses the role and efficacy of probiotics in managing Irritable Bowel Syndrome (IBS). It explores how probiotics can help restore gut microbial balance and improve IBS symptoms, offering a comprehensive overview of their potential benefits.
- https://www.sciopen.com/article/10.26599/FSHW.2022.9250153 – This study focuses on the application of Bacillus coagulans in food and health, highlighting its probiotic characteristics and potential health benefits. It discusses its role in improving gut health and overall well-being through dietary supplementation.
- https://journals.lww.com/md-journal/fulltext/2023/03030/the_effects_of_bacillus_coagulans_mtcc_5856_on.52.aspx – This randomized controlled trial examines the effects of Bacillus coagulans MTCC 5856 on functional gas and abdominal distension. The study demonstrates that supplementation with this specific strain of Bacillus coagulans significantly reduces gastrointestinal symptoms compared to placebo, indicating its potential as a treatment for these conditions.
- https://foodandnutritionresearch.net/index.php/fnr/article/view/1218 – This research investigates the impact of Bacillus coagulans supplementation on individuals with Irritable Bowel Syndrome (IBS) and comorbid major depressive disorder. The study reveals that B. coagulans can improve both depression symptoms and IBS-related quality of life, along with reducing inflammatory biomarkers, suggesting a potential therapeutic role in managing these co-occurring conditions.
Supplements Containing Bacillus Coagulans

Deep2 30 Banana Smoothie
Mt. Capra

Deep2 30 Coconut Dream
Mt. Capra
Deep2 30 Strawberry Splash!
Mt. Capra

Enviro-Detox
Nature's Sunshine

Floramune
Health Logics

ThreeLac Probiotic
Global Health Trax

ThreeLac Caps
Global Health Trax

FiveLac Probiotic
Global Health Trax

Ultimate Man Gold
The Vitamin Shoppe