Lactobacillus reuteri

Lactobacillus reuteri

What is L. reuteri?

Lactobacillus reuteri (L. reuteri) is a probiotic bacteria that naturally resides in the gastrointestinal tract, oral cavity, and breast milk. L. Reuteri can also be consumed through fermented foods including yoghurts, some aged cheeses, kimchi, and sauerkraut.

It is known for its ability to effectively colonise the human body and produce beneficial compounds such as reuterin and lactic acid. Because of its strong affinity for human tissues, L. reuteri is one of the most widely researched probiotic species for supporting digestion and the immune system.

Health Benefits:

Supports Digestive Health 

Perhaps the most highly recognised benefit of L. reuteri is its ability to support gastrointestinal health. Numerous studies have indicated that L. reuteri contributes to the maintenance of a balanced gut microbiome, fostering an environment where beneficial bacteria thrive while suppressing harmful microbes. Furthering this, research suggests that L. reuteri may enhance gut barrier function and help to maintain intestinal epithelial repair function, potentially aiding the prevention of gastrointestinal issues such as Inflammatory Bowel Disease (IBD) and IBS.

Boosts Immune Function

The gut plays a pivotal role in immune function and therefore, through its impressive benefits for gut health, L. reuteri may contribute to immunity. Research indicates that this probiotic strain may enhance the body's immune response, potentially reducing the risk of certain infections and supporting overall immune system resilience. For example, one study found evidence that L. Reuteri has immunomodulatory effects and stimulated the innate immune-cell response.

Supports Positive Mood

Emerging research suggests that L. reuteri may also support positive mood and mental health. Numerous studies have found evidence indicating that L. reuteri can reduce symptoms of depression in human patients, as well as depression-like behaviors of animals. One study found that oral treatment with L. reuteri improved serotonin metabolism, which is potentially one mechanism for L. reuteri's benefits for mood as healthy serotonin metabolism is associated with more stable and positive mood.

Typical Use:

L. reuteri is a popular ingredient in supplements aimed at providing digestive comfort and boosting the immune system due to its clinically studied benefits. It is often included as part of multi strain probiotic blends to provide comprehensive probiotic support.

Sources:

https://pmc.ncbi.nlm.nih.gov/articles/PMC10471993/

https://pmc.ncbi.nlm.nih.gov/articles/PMC5917019/

https://www.sciencedirect.com/science/article/pii/S2352513424000644

https://pubmed.ncbi.nlm.nih.gov/31927268/

https://www.sciencedirect.com/science/article/abs/pii/S0163834325001069

https://pmc.ncbi.nlm.nih.gov/articles/PMC9788328/