Lactobacillus reuteri, also known as Limosilactobacillus reuteri, is a specific type of probiotic bacterium. It is a beneficial microbe that naturally resides in various parts of the human body, including the gastrointestinal tract, oral cavity, and even breast milk. L. reuteri plays a role in maintaining a healthy balance of microorganisms within the digestive system, supporting the overall microbial community.
Foods Naturally Containing Lactobacillus Reuteri
Identifying foods that consistently contain high levels of Lactobacillus reuteri can be challenging due to variations in fermentation processes and specific strains. While some fermented dairy products may contain this bacterium, its presence is not always guaranteed or in significant quantities. Certain types of kefir and yogurt, for example, might include L. reuteri depending on the starter cultures used by the manufacturer.
Beyond dairy, Lactobacillus reuteri has been isolated from fermented meats. The natural prevalence of L. reuteri in foods can vary widely by brand and the specific methods of fermentation employed. For instance, traditional sourdough bread or certain fermented vegetables might contain various lactic acid bacteria, but L. reuteri is not a universal component.
The variability in its natural presence means relying solely on diet for a consistent intake of L. reuteri can be difficult. While some artisan or traditionally prepared fermented foods may contain it, the levels and viability of the bacteria are often not standardized. This makes it challenging to ensure a specific dosage through food consumption alone.
Benefits of Lactobacillus Reuteri
The consumption of Lactobacillus reuteri is associated with several health benefits, particularly concerning gut health. This probiotic supports digestion by helping to balance gut bacteria and can contribute to reducing digestive discomfort. It produces reuterin, a compound with antimicrobial properties that helps inhibit the growth of harmful pathogens while supporting beneficial microbes.
L. reuteri also plays a role in modulating the immune system. Research indicates it can influence immune responses by increasing anti-inflammatory cytokines and decreasing pro-inflammatory ones, which may be beneficial in conditions involving chronic inflammation. It enhances mucosal barrier function by promoting mucin production, strengthening the gut lining and preventing the translocation of harmful substances.
Beyond gut and immune health, L. reuteri may offer potential effects on oral health. Emerging evidence also suggests it can interact with the host’s enteric nervous system, potentially influencing gut-brain communication and contributing to overall wellness.
Lactobacillus Reuteri Supplements
Lactobacillus reuteri is widely available in supplement form. Individuals might choose supplements to ensure a precise dosage of L. reuteri, which can be challenging to achieve through food sources alone. Supplements offer a reliable method for consistent intake, often containing specific, well-studied strains.
When selecting a supplement, considering strain specificity is important, with examples including DSM 17938 and ATCC PTA 6475. These strains have been extensively researched for various health applications. Choosing reputable brands ensures product quality and the viability of the probiotic bacteria. Supplements are a complementary approach to dietary intake.