Lactobacillus reuteri NCIMB 30242
Also known as: Lactobacillus reuteri NCIMB 30242, Limosilactobacillus reuteri NCIMB 30242, L. reuteri NCIMB 30242
Overview
*Lactobacillus reuteri* NCIMB 30242 is a specific strain of probiotic bacteria, originally isolated from human sources and commercially produced for supplementation. It is primarily used to support cardiovascular health by lowering total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C), and to improve vitamin D status. This strain is well-studied, demonstrating effects on lipid metabolism and vitamin D absorption. While research is not as extensive as for some other probiotics, several randomized controlled trials (RCTs) and meta-analyses support its efficacy. It is available in capsule form and generally considered safe for most adults. Its effects are typically observed within 6-9 weeks of consistent use. *L. reuteri* NCIMB 30242 is not typically found in significant quantities in food.
Benefits
*Lactobacillus reuteri* NCIMB 30242 has demonstrated benefits in improving lipid profiles and vitamin D levels. Meta-analyses and RCTs indicate that it can significantly reduce total cholesterol (TC) and LDL-C, with reductions generally in the range of 5-10%. A 9-week RCT showed that it increased serum 25-hydroxyvitamin D by 14.9 nmol/L (25.5%) compared to baseline, with a significant mean change relative to placebo of 17.1 nmol/L (22.4%). These effects are clinically relevant for cardiovascular risk reduction and may benefit individuals with suboptimal vitamin D status. Most studies have been conducted in adults with mild to moderate hypercholesterolemia, showing the most pronounced benefits in this population.
How it works
*Lactobacillus reuteri* NCIMB 30242 primarily influences lipid metabolism by potentially reducing cholesterol absorption in the gut. This may occur through the deconjugation of bile acids, increasing their excretion, and reducing cholesterol reabsorption. The mechanism for increased vitamin D levels is less clear but may involve improved gut health and absorption, or modulation of vitamin D metabolism. As a probiotic, it interacts with the gastrointestinal tract, influencing gut microbiota and nutrient absorption. Its effects are systemic through metabolic changes rather than direct absorption into the bloodstream.
Side effects
*Lactobacillus reuteri* NCIMB 30242 is generally considered safe for healthy adults. Common side effects are rarely reported, with most studies showing no significant difference in adverse events compared to placebo. Mild gastrointestinal symptoms such as bloating or gas may occur in some individuals, but these are infrequent. Serious adverse events are extremely rare. No significant drug interactions have been reported in the literature. However, it is not recommended for individuals with compromised immune systems or severe gastrointestinal disorders without medical supervision. Safety in pregnant or lactating women, children, and immunocompromised individuals has not been extensively studied, warranting caution in these populations.
Dosage
The minimum effective dose of *Lactobacillus reuteri* NCIMB 30242 is around 1-2 billion CFU (colony-forming units) per day. The optimal dosage range, based on available RCTs, is 2-5 billion CFU per day. A maximum safe dose has not been definitively established, but doses up to 5 billion CFU/day have been used safely in clinical trials. It is typically taken once daily, with or without food. The supplement is available in capsule form, and proper storage is essential to maintain viability. As a probiotic, its effects are gut-mediated, so absorption factors are not directly applicable.
FAQs
Is *Lactobacillus reuteri* NCIMB 30242 safe?
Yes, it is generally safe for most adults, with minimal side effects reported in clinical trials. However, individuals with compromised immune systems should consult a healthcare provider.
When should I take it?
It can be taken at any time of day, with or without food. Consistency is key for observing benefits.
What results can I expect?
Modest reductions in TC and LDL-C (5-10%) and increased serum vitamin D (15-20 nmol/L) may be observed after 6-9 weeks of consistent use.
Can I use it instead of my statin medication?
No, it is not a substitute for statins or other lipid-lowering therapies. Its effects are modest and should be considered adjunctive to conventional treatments.
Research Sources
- https://pubmed.ncbi.nlm.nih.gov/37419064/ – This study investigated the effects of *Limosilactobacillus reuteri* consumption on various health outcomes. The findings suggest that this probiotic strain can significantly reduce total cholesterol and LDL-C levels, contributing to improved cardiovascular health. The research provides evidence supporting the potential benefits of incorporating *L. reuteri* into dietary interventions for managing cholesterol.
- https://pmc.ncbi.nlm.nih.gov/articles/PMC5464580/ – This meta-analysis examined the impact of *Lactobacillus* probiotics on lipid profiles. The results indicated that specific strains, including *L. reuteri* and *L. plantarum*, significantly reduced total cholesterol and LDL-C levels. The study highlights the potential of these probiotics as a complementary approach to managing hyperlipidemia.
- https://academic.oup.com/jcem/article/98/7/2944/2537145 – This randomized controlled trial assessed the effects of oral supplementation with *L. reuteri* NCIMB 30242. The study found that the probiotic increased serum 25-hydroxyvitamin D levels and reduced LDL-C in participants. These findings suggest that *L. reuteri* NCIMB 30242 may have beneficial effects on both vitamin D status and lipid metabolism.
- https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0178868 – This meta-analysis evaluated the effect of *Lactobacillus* probiotics on lipid profiles. The study included 13 RCTs and found that *Lactobacillus*, particularly *L. reuteri* and *L. plantarum*, significantly reduced total cholesterol and LDL-C. The results support the use of these probiotics as a potential strategy for improving lipid profiles.
- https://www.mdpi.com/2076-2607/13/1/45 – This review provides an overview of the health benefits associated with *Limosilactobacillus reuteri*. It discusses the probiotic's role in improving gut health, modulating the immune system, and potentially reducing cholesterol levels. The review highlights the versatility of *L. reuteri* as a probiotic with various health-promoting properties.
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