Bifidobacterium lactis, commonly referred to as B. lactis, is a probiotic bacterium that resides in your digestive system. It plays a crucial role in breaking down food, absorbing nutrients, and protecting against harmful microorganisms. As a constituent of the Bifidobacterium family, it is one of the friendly bacteria strains that contribute to a balanced gut microbiota, which is essential for your overall health and well-being.
Evidence suggests that B. lactis may offer various health benefits. It enhances your immune function, may aid in the management of digestive disorders like irritable bowel syndrome (IBS), and is thought to help maintain overall gut health. The bacterium is particularly adept at withstanding the harsh environment of the gastrointestinal tract, allowing it to reach and colonize your lower intestine, where it can exert its positive effects on your gut health.
Integrating B. lactis into your diet is typically done through fermented dairy products or dietary supplements. Its potential to impact gut motility and sensitivity, as well as its probiotic properties, make it a valuable bacterium for promoting a healthy intestinal environment. Remember to consult with a healthcare provider before adding any new supplement to your regimen, especially if you have pre-existing health conditions or are on medication.
Bifidobacterium Lactis Overview
Bifidobacterium lactis, commonly referred to as B. lactis, is a robust probiotic strain with significant health benefits for your gut. Your understanding of B. lactis begins with its classification and extends into its distinct characteristics and the variants that have commercial and health implications.
Taxonomy and Nomenclature
B. lactis belongs to the Bifidobacterium genus, a group of bacteria typically found in the intestines of mammals, including humans. First described by Meile et al. in 1997, it was later reclassified as Bifidobacterium animalis subsp. lactis in 2004. Recognized widely in both science and industry, these bacteria are crucial components of dietary supplements and fermented foods.
Strain Characteristics and Variants
As a resilient lactic acid bacterium, B. lactis is known for its ability to survive harsh conditions in the gastrointestinal tract. It has a unique ability to endure gastric acidity and bile, allowing it to reach the colon and exert its probiotic effects. Variants like B. lactis 420 and HN019 are identified for specific health roles, including metabolic health and gut motility, enhancing their value as targeted probiotics in functional foods and supplements.
Health Benefits
Bifidobacterium lactis, commonly known as B. lactis, is a beneficial bacteria offering multiple health advantages. Your understanding of its role can improve your approach to digestive wellness and immune system support.
Digestive Health
B. lactis is renowned for enhancing your digestive function. It reduces inflammation in the gastrointestinal tract, potentially alleviating symptoms of conditions like Irritable Bowel Syndrome (IBS). The presence of B. lactis in your diet may help:
- Improve digestion: It aids in breaking down food, making digestion more comfortable.
- Decrease intestinal permeability: This can prevent unwanted substances from entering the bloodstream.
- Normalize bowel movements: It contributes to regularity, which can reduce the incidence of constipation.
- Decrease lactose intolerance: People who consume B. lactis may find they can better tolerate lactose.
Immune System Enhancement
Probiotics like B. lactis directly contribute to the modulation of your immune system. They support the immune response by:
- Reducing oxidative stress: This minimizes cellular damage and strengthens immune defenses.
- Stimulating T-cell production: These cells are crucial for preventing an overactive immune response and maintaining immune homeostasis.
Potential Therapeutic Applications
B. lactis holds promise in various therapeutic scenarios beyond general health support. It offers:
- Anti-carcinogenic properties: There is evidence that B. lactis increases activity against tumor cells.
- Support in acute diarrhea treatment: The probiotic can manage and treat episodes, improving recovery.
- Oral health benefits: Supplementation may enhance oral health by influencing the balance of oral bacteria.
By incorporating B. lactis into your regimen, you may tap into these documented health benefits and support your body’s overall wellness.
Commercial Use
Bifidobacterium animalis subsp. lactis, commonly referred to as B. lactis, is widely utilized in commercial products aimed at improving gut health. Your awareness of its applications in the food industry and dietary supplements can inform your choices for health and nutrition.
Food Industry
In the food industry, B. lactis is primarily incorporated into dairy products. One well-known example includes:
- Activia Yogurt (Danone, France)
- Contains B. lactis DN-173010
- Marketed for digestive health benefits
This probiotic strain is added to yogurt and other fermented milk products to enhance their health attributes, with claims that it can support digestive health and balance gut microbiota.
Dietary Supplements
When it comes to dietary supplements, B. lactis is featured in various probiotic formulations that you may find as capsules, powders, or chewable tablets. Examples of products containing B. lactis include:
- Florajen Kids
- B. animalis subsp. lactis HN019
- Aimed at improving children’s gut flora
- Florajen Women
- B. animalis subsp. lactis BI-07
- Formulated to support women’s health
These supplements are designed to elevate your intestinal flora with live beneficial bacteria, often alongside other probiotic strains for a synergistic effect.
Scientific Research
Scientific research on Bifidobacterium animalis subsp. lactis (B. lactis) has revealed significant findings related to metabolic health and gut-barrier function, underpinned by controlled clinical trials and elucidated mechanisms of action.
Clinical Trials
Clinical trials have been instrumental in determining the benefits of B. lactis for overall gut health and its potential role in supporting metabolic processes. For example:
- A study evaluating B. lactis 420 highlighted its positive impact on cardiometabolic factors, with participants showing improved markers related to metabolic health.
- The safety and efficacy of B. lactis strain BB-12 were assessed in a group of adults consuming BB-12-supplemented yogurt, exhibiting a good safety profile during a course of antibiotics.
Mechanisms of Action
The mechanisms of action of B. lactis are diverse, influencing both the immunological and physical aspects of the gastrointestinal system. Key points include:
- Intestinal Barrier Function: B. lactis aids in maintaining tight junction integrity, which is crucial for a robust intestinal barrier capable of warding off pathogens.
- Immunomodulation: This probiotic strain may regulate the host’s immune response, optimizing the body’s defence systems against gastrointestinal infections.
Regulatory and Safety Aspects
In this section, you’ll learn about the regulatory compliance and safety considerations for Bifidobacterium animalis subsp. lactis (B. lactis), a probiotic strain commonly used in dietary supplements and foods.
GRAS Status
B. lactis has been designated as Generally Recognized as Safe (GRAS) by the U.S. Food and Drug Administration (FDA). The GRAS status is a regulatory framework that establishes the safety of ingredients used in foods. The criteria for GRAS status include a safe track record of use and consensus among qualified experts that the substance is safe for its intended use.
Safety Profile
The safety profile of B. lactis is well-established. Clinical studies have demonstrated that the consumption of this probiotic strain is safe for adults, even when taking antibiotics. – Safety and tolerability assessments indicate that B. lactis strain BB-12-supplemented yogurt is well-tolerated, without significant adverse effects noted in healthy adult populations. – It’s important for consumers to know that rigorous safety evaluations are performed to ensure that B. lactis meets the necessary standards for consumption.
Frequently Asked Questions
Bifidobacterium lactis, or B. lactis, is a well-researched probiotic that offers various health benefits, from improving gut health to supporting the immune system. These frequently asked questions provide insights into its effects and uses.
What are the health benefits associated with consuming B. lactis as a probiotic?
B. lactis is known for its beneficial impact on your gut health. It has been associated with the treatment and prevention of diarrhea, particularly viral diarrhea and antibiotic-associated diarrhea. It may also aid in managing symptoms of lactose intolerance and inflammatory bowel disease.
Can B. lactis supplementation lead to any adverse side effects?
B. lactis is generally considered safe for consumption with minimal side effects. However, some individuals might experience bloating or gas when they first start taking B. lactis supplements or consume foods containing the probiotic strain. These side effects are usually temporary.
In which types of foods can B. lactis commonly be found?
You can find B. lactis in fermented dairy products like yogurt and kefir. It is also present in some cheeses and milk products that have been fortified with probiotics. Additionally, B. lactis is available in various dietary supplements.
What specific effects does Bifidobacterium lactis B420 have on weight management?
The B420 strain of B. lactis has been studied for its potential role in weight management. Research suggests it may help in controlling body fat and weight, as well as reducing waist circumference when consumed as part of a healthy diet and lifestyle.
What is the significance of the B lactis BL818 strain?
The BL818 strain of B. lactis is particularly noted for its role in enhancing the immune system. Its specific properties may help in increasing T-cell activity and potentially reducing the frequency and severity of respiratory diseases.
Aside from B. lactis, what are other names used to refer to this probiotic strain?
B. lactis is also known by its full nomenclature, Bifidobacterium animalis subsp. lactis. It’s important to recognize these alternative names as products may list either on their labels.
Johan Theorin is an author, editor, and competitive cyclist. He is the author of most of the content on this website, and he is the site editor. Johan has spent years researching joint health, sports performance and recovery. He is a leading biohacking expert and an experienced physiotherapist.
Leave a Reply