Bacillus Subtillis De111
Also known as: Bacillus subtilis probiotic strain DE111, DE111, Bacillus subtilis DE111
Overview
Bacillus subtilis DE111 is a specific, spore-forming probiotic bacterium commonly found in soil and the human gut. It is utilized as a dietary supplement primarily for its potential to support gastrointestinal health and immune function. A key characteristic of DE111 is its ability to form spores, which allows it to survive the harsh acidic environment of the stomach and reach the intestines intact and viable. Once in the intestines, these spores germinate and exert their probiotic effects. Research on DE111 is growing, with several randomized controlled trials (RCTs) investigating its impact on gut health, immune markers, and cardiovascular risk factors. The current evidence base is considered moderate, with well-conducted RCTs providing insights into its benefits, though comprehensive meta-analyses specifically on DE111 are still limited.
Benefits
Bacillus subtilis DE111 has demonstrated several evidence-based benefits across various health domains. For cardiovascular health, a 4-week randomized, double-blind, placebo-controlled trial indicated that DE111 supplementation modestly improved endothelial function and significantly reduced total and non-HDL cholesterol levels, suggesting potential benefits for heart health (moderate evidence) [1]. In pediatric populations, an 8-week RCT involving 102 daycare children (ages 2-6) found that DE111 significantly reduced the duration of vomiting, hard stools, and overall gastrointestinal discomfort compared to placebo, highlighting its role in supporting children's GI health and symptom relief (moderate evidence) [2, 3]. Furthermore, DE111 has shown immune-modulating effects; a 12-week study in collegiate athletes revealed that supplementation lowered circulating levels of TNF-α, a pro-inflammatory cytokine, compared to placebo, suggesting anti-inflammatory properties (moderate evidence) [4]. While not specific to DE111, systematic reviews and meta-analyses on probiotics generally indicate improvements in intestinal barrier integrity and reductions in inflammation markers, suggesting DE111, as a probiotic, may contribute to similar effects [5].
How it works
Bacillus subtilis DE111 exerts its effects primarily through its unique spore-forming capability. Upon ingestion, the DE111 spores are highly resistant to gastric acid, allowing them to survive passage through the stomach and reach the intestines viable. Once in the intestinal tract, these spores germinate into active bacterial cells. These active bacteria then modulate the gut microbiota composition, potentially by competing with harmful bacteria and promoting the growth of beneficial microbes. DE111 may also enhance the integrity of the intestinal mucosal barrier, which is crucial for preventing the leakage of toxins and pathogens. Additionally, it is thought to reduce systemic inflammation by decreasing the production of pro-inflammatory cytokines, such as TNF-α. The strain may also influence gastrointestinal motility and stool consistency, contributing to reduced GI discomfort. Its potential cardiovascular benefits are thought to be mediated through improvements in lipid profiles, although the precise molecular pathways require further investigation.
Side effects
Bacillus subtilis DE111 is generally considered safe and well-tolerated in both adult and pediatric populations. Clinical trials, including randomized controlled trials, have reported no significant adverse events or serious side effects associated with its use [2, 4]. No specific contraindications have been documented in the available clinical research. Furthermore, no significant drug interactions have been reported in studies. However, as with any probiotic, caution is advised for individuals who are severely immunocompromised or have underlying medical conditions that might predispose them to systemic infections, due to the live bacterial nature of the supplement, even though it is spore-forming. While the risk is very low, the potential for bacteremia in highly vulnerable populations is a theoretical concern with any live bacterial product. It is always recommended to consult a healthcare professional before starting any new supplement, especially for individuals with compromised immune systems or those taking other medications.
Dosage
The effective dosage of Bacillus subtilis DE111, as demonstrated in clinical trials, typically ranges around 1 billion CFU (colony-forming units) daily. This dosage has been consistently used in studies showing benefits for gastrointestinal health, immune modulation, and cardiovascular markers [2, 4]. The duration of supplementation in research studies has varied, ranging from 4 weeks for cardiovascular benefits to 8-12 weeks for gastrointestinal and immune effects. There is currently no established maximum safe dose for DE111, but clinical trials have not reported adverse effects at the studied dosages. The spore-forming nature of DE111 is advantageous as it ensures high viability and survival through the harsh acidic environment of the stomach, allowing the active bacteria to reach the intestines. It is commonly available in various forms, including capsules and powders, which should be taken according to product instructions, usually once daily.
FAQs
Is DE111 safe for children?
Yes, studies in preschool children have demonstrated that DE111 is safe and provides gastrointestinal benefits without reported adverse effects [2].
How soon can benefits be expected?
Some gastrointestinal symptom improvements have been observed within 8 weeks, while lipid and endothelial function benefits were noted after 4 weeks of supplementation [1, 2].
Does DE111 improve immune function?
DE111 may reduce inflammation markers like TNF-α, suggesting anti-inflammatory effects, but it does not significantly alter other immune markers in healthy adults [4].
Can DE111 replace antibiotics?
No, DE111 is a probiotic supplement designed to support gut health and immune function, not to treat or replace antibiotics for bacterial infections.
Research Sources
- https://pmc.ncbi.nlm.nih.gov/articles/PMC8773468/ – This randomized, double-blind, placebo-controlled trial investigated the effects of DE111 on cardiovascular health. It found that 4 weeks of DE111 supplementation modestly improved endothelial function and significantly reduced total and non-HDL cholesterol levels, suggesting potential benefits for cardiovascular risk factors.
- https://www.longdom.org/open-access/effect-of-daily-bacillus-subtilis-de111-intake-on-gastrointestinalhealth-and-respiratory-infections-in-children-attending-daycare--59503.html – This RCT in 102 daycare children (ages 2-6) demonstrated that 8 weeks of DE111 intake significantly reduced the duration of vomiting, hard stools, and overall gastrointestinal discomfort compared to placebo, indicating its safety and efficacy for pediatric GI health.
- https://www.longdom.org/open-access-pdfs/effect-of-daily-bacillus-subtilis-de111-intake-on-gastrointestinalhealth-and-respiratory-infections-in-children-attendin.pdf – This PDF provides the full text of the study on children, confirming the findings that DE111 intake reduced the duration of various gastrointestinal symptoms in daycare children over an 8-week period, with no reported adverse effects.
- https://pmc.ncbi.nlm.nih.gov/articles/PMC6162611/ – This randomized, double-blind, placebo-controlled trial in 25 collegiate male athletes showed that 12 weeks of DE111 supplementation lowered circulating TNF-α, a pro-inflammatory cytokine, compared to placebo, suggesting anti-inflammatory effects, though other immune markers were unchanged.
- https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2023.1143548/full – This systematic review and meta-analysis, while not specific to DE111, provides high-quality evidence that probiotics generally improve intestinal barrier integrity and reduce inflammation markers like serum zonulin. This offers indirect support for DE111's potential mechanisms of action related to gut health.
