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Lactobacillus Fermentum Extract

Also known as: *L. fermentum*, Probiotic bacteria, *Lactobacillus fermentum*

Overview

*Lactobacillus fermentum* is a species of lactic acid bacteria prevalent in fermented foods and recognized for its probiotic properties. It plays a significant role in promoting gut health and modulating immune responses. The species is found naturally in various food products and is often marketed as a dietary supplement due to its health benefits, such as potential enhancement of immune function and improvement in gut microbiota composition. Research on *L. fermentum* suggests moderate maturity, with a substantial focus on its immunomodulatory effects, yet comprehensive systematic reviews are still required to fully elucidate its benefits and limitations. Overall, *L. fermentum* acts by positively influencing gut health and supporting the immune system.

Benefits

*Lactobacillus fermentum* has been linked to several key health benefits backed by scientific research. Primarily, it exhibits immunomodulatory effects which may reduce the incidence of infections and enhance immune responses. For example, a study involving *L. fermentum* CECT5716 reported that its supplementation during pregnancy and lactation improved the composition of milk by increasing immunoglobulins and beneficial fatty acids, suggesting advantages for maternal and infant health. While there is limited direct evidence regarding its effects on lipid profiles or metabolic health, general probiotics have shown potential in improving cholesterol levels and glycemic control. The benefits appear most pronounced in certain populations, particularly pregnant women, although specific effect sizes and clinical significance for *L. fermentum* in humans call for further investigation.

How it works

*Lactobacillus fermentum* exerts its effects primarily through modulating the immune system via interactions with gut-associated lymphoid tissue (GALT) and influencing cytokine production. This regulation of immune responses not only supports gut health but also impacts systemic immunity. Moreover, *L. fermentum* helps maintain the balance of gut microbiota and interacts with various body systems, although its specific molecular targets remain poorly defined. Notably, *L. fermentum* acts locally in the gut rather than being absorbed systemically.

Side effects

*Lactobacillus fermentum* is generally regarded as safe, with mild gastrointestinal symptoms such as bloating or gas being the most commonly reported side effects. Uncommon and rare side effects have not been consistently recorded; however, caution is warranted in immunocompromised individuals, where rare cases of infection may occur. There have been no significant drug interactions noted with *L. fermentum*. Special populations, including severely immunocompromised patients, should exercise caution due to possible risks. Overall, while most individuals tolerate *L. fermentum* well, awareness of its limitations and contraindications is essential when considering its use.

Dosage

The optimal dosage range for *Lactobacillus fermentum* is not definitively established, but general probiotic administration typically falls between 1 to 10 billion CFU per day. Doses may vary based on specific formulations and intended health outcomes. It is advisable to take *L. fermentum* with food to improve its survivability through the digestive tract. While there is no established maximum dose, high amounts of probiotics are generally well-tolerated by the majority of individuals. Because *L. fermentum* operates locally in the gut, factors influencing absorption are minimal, with no specific required cofactors identified.

FAQs

How should I store *L. fermentum* supplements?

They should be stored in a cool, dry place to maintain viability.

Is *L. fermentum* safe for everyone?

While typically safe, caution is advised for individuals with compromised immune systems.

When is the best time to take *L. fermentum*?

It is best taken with meals to enhance its survival through the stomach.

What health benefits can I expect from *L. fermentum*?

You may experience enhanced immune function and improved gut health.

Is *L. fermentum* a cure for diseases?

*L. fermentum* is not a cure but may support overall health.

Research Sources

  • https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0178868 – This study focused on the effects of *L. fermentum* CECT5716 on pregnant and lactating rats, noting improvements in milk composition and immunoglobulin levels, suggesting potential maternal and infant health benefits.
  • https://pubmed.ncbi.nlm.nih.gov/35820261/ – Conducted as a meta-analysis, this research discusses the benefits of probiotics, including *Lactobacillus* species, in improving cholesterol levels and glycemic control across diverse studies.
  • https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2021.643420/full – This meta-analysis reviewed 677 references related to various *Lactobacillus* species, highlighting their immunomodulatory effects but specifying that differences may exist between species, limiting direct application to *L. fermentum*.
  • https://pubmed.ncbi.nlm.nih.gov/32008776/ – This article discusses broad applications of Lactobacillus in reducing markers of inflammation and supporting gut health, adding context to *L. fermentum*'s role in these areas.
  • https://onlinelibrary.wiley.com/doi/abs/10.1111/pai.13305 – The meta-analysis provides insights into the immunomodulatory properties of probiotics in general, emphasizing the need for species-specific studies to ascertain particular effects for *L. fermentum*.

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