Ingredient Knowledge Base

Bifidobacterium longum longum 35624: What It Is, Benefits, Dosage, and Sources

Nutrientic Team
15 min read

Bifidobacterium longum longum 35624 (often shortened to B. Longum 35624) is a specific, well-researched strain of probiotic bacteria. Unlike generic probiotic categories, this particular strain has been isolated, identified, and studied for its potential effects on human health, primarily focusing on gut health and its broader implications. It's not just any Bifidobacterium longum; the "35624" denotes its unique identity, much like a specific cultivar of a plant. Understanding this distinction is key to appreciating its specific applications and the evidence supporting them.

A Specific Strain: Bifidobacterium longum 35624

The world of probiotics is vast, encompassing numerous genera, species, and strains. Bifidobacterium is a genus of beneficial bacteria commonly found in the human gut. Within this genus, Bifidobacterium longum is a well-known species. The further designation of "35624" identifies a particular strain that has been isolated, characterized, and subjected to scientific scrutiny. This specificity is crucial because the health benefits of probiotics are often strain-dependent; what one strain does, another in the same species might not, or might do differently.

The practical implications of this specificity mean that research findings related to B. Longum 35624 cannot be automatically applied to other Bifidobacterium longum strains, let alone other Bifidobacterium species or entirely different probiotic genera. When considering a probiotic supplement, identifying the specific strain, like 35624, is more informative than just knowing the genus and species. For consumers, this translates to seeking out products that explicitly state "35624" if they are looking for the benefits associated with this particular strain, rather than simply "Bifidobacterium longum" in general.

For example, if a study shows B. Longum 35624 reduces abdominal discomfort in irritable bowel syndrome (IBS) patients, it doesn't mean that a supplement containing an unspecified Bifidobacterium longum will offer the same relief. The unique genetic makeup and metabolic activities of strain 35624 are what contribute to its observed effects.

Bifidobacterium longum and Its Role in Digestive Health

Before delving deeper into the specific strain 35624, it's helpful to understand the broader role of Bifidobacterium longum in the gut. As one of the most abundant Bifidobacterium species in the human gastrointestinal tract, especially in adults, B. Longum contributes significantly to gut homeostasis. It's recognized for its ability to ferment various complex carbohydrates, including prebiotics, producing short-chain fatty acids (SCFAs) like acetate, propionate, and butyrate. These SCFAs are vital for gut health, serving as an energy source for colon cells, maintaining gut barrier integrity, and influencing immune responses.

B. Longum is also known to help maintain a balanced gut microbiota by inhibiting the growth of certain pathogenic bacteria, supporting the immune system, and potentially influencing mood through the gut-brain axis. Its presence is often associated with a healthy digestive system, and disruptions in its population can sometimes correlate with various gastrointestinal issues.

The connection to B. Longum 35624 is that this specific strain builds upon these general benefits. It possesses the foundational characteristics of its species but also exhibits unique properties that have been specifically investigated for targeted health outcomes.

Investigating the Effectiveness of Bifidobacterium longum 35624

The effectiveness of B. Longum 35624 has been primarily explored through clinical trials, focusing on specific health conditions. This research aims to move beyond general probiotic claims to demonstrate tangible, measurable effects in human subjects. The areas of investigation have largely centered around gastrointestinal comfort and the gut-brain axis.

One notable area of study involves its impact on symptoms associated with Irritable Bowel Syndrome (IBS). IBS is a common functional gastrointestinal disorder characterized by abdominal pain, bloating, and altered bowel habits. Clinical trials have explored whether supplementation with B. Longum 35624 can alleviate these symptoms. The mechanism is thought to involve its ability to modulate the gut microbiota, reduce inflammation, and potentially influence visceral sensitivity and pain perception via the gut-brain axis.

Another key area of research has examined the strain's influence on psychological distress, particularly stress and anxiety. The gut-brain axis is a bidirectional communication system linking the central nervous system with the enteric nervous system of the gut. Probiotics, including specific Bifidobacterium strains, are thought to communicate along this axis, potentially affecting neurotransmitter production, inflammatory pathways, and overall brain function. Studies have looked at markers of stress and mood in individuals supplementing with B. Longum 35624, observing potential improvements in these areas.

It's important to recognize that while promising, these studies are often conducted under specific conditions and with particular populations. The generalizability of findings always requires careful consideration. The strength of the evidence for B. Longum 35624 largely comes from its repeated investigation in controlled clinical settings, distinguishing it from many other probiotic strains with less strong human data.

How Bifidobacterium longum 35624 Supports the Digestive System

B. Longum 35624 contributes to digestive health through several mechanisms, building on the general functions of Bifidobacterium longum but with potentially enhanced or specific effects.

  • Modulation of Gut Microbiota: By colonizing the gut, B. Longum 35624 can help rebalance the microbial community, particularly in situations where dysbiosis (an imbalance of gut bacteria) is present. This can lead to a more diverse and resilient microbiota, which is associated with better digestive function.
  • Production of Short-Chain Fatty Acids (SCFAs): Like other Bifidobacterium strains, 35624 ferments dietary fibers and prebiotics, producing SCFAs. These compounds are crucial for maintaining the integrity of the gut lining, influencing gut motility, and exerting anti-inflammatory effects within the colon.
  • Strengthening the Gut Barrier: A healthy gut barrier prevents harmful substances from entering the bloodstream. B. Longum 35624 may help reinforce this barrier, reducing intestinal permeability (often referred to as "leaky gut"), which can be a factor in various digestive and systemic issues.
  • Reducing Inflammation: Chronic low-grade inflammation in the gut can contribute to digestive discomfort and disease. Studies suggest that B. Longum 35624 may have immunomodulatory effects, helping to dampen inflammatory responses in the gut.
  • Influence on Visceral Sensitivity: For conditions like IBS, heightened visceral sensitivity (meaning the gut is overly responsive to normal stimuli) contributes to pain and discomfort. B. Longum 35624 may play a role in modulating this sensitivity, leading to reduced abdominal pain and cramping.

These mechanisms highlight how this specific probiotic strain doesn't just add "good bacteria" but actively participates in complex physiological processes that underpin digestive well-being.

Benefits of Bifidobacterium longum 35624: A Closer Look

The targeted research on B. Longum 35624 has illuminated several potential benefits, primarily centered around gut health and psychological well-being. Here are some of the key areas where this strain has shown promise:

  1. Alleviation of IBS Symptoms: This is perhaps the most well-documented benefit. Multiple studies have indicated that B. Longum 35624 can help reduce the severity of common IBS symptoms, including abdominal pain, bloating, and gas. It appears to be effective across different IBS subtypes, though individual responses can vary.
  2. Support for Mental Well-being (Gut-Brain Axis): Research suggests that B. Longum 35624 can positively influence the gut-brain axis. Studies have shown potential reductions in daily stress, anxiety, and improvements in mood in individuals supplementing with this strain. This effect is thought to be mediated through its impact on gut microbiota, inflammation, and neurotransmitter pathways.
  3. Reduction of Stress-Related Digestive Discomfort: Beyond general IBS symptoms, the strain has been specifically investigated for its ability to mitigate digestive symptoms exacerbated by psychological stress. This includes stress-induced abdominal pain and discomfort, suggesting a direct link between its gut-brain axis modulation and symptomatic relief.
  4. Improved Gut Motility: For some individuals, dysregulated gut motility contributes to constipation or diarrhea. While not its primary focus, some evidence suggests B. Longum 35624 may help normalize bowel movements, contributing to overall digestive regularity.
  5. Modulation of Immune Response: A significant portion of the body's immune system resides in the gut. B. Longum 35624 may interact with immune cells in the gut, potentially modulating inflammatory responses and supporting overall immune function. This is a broader benefit of many probiotics, and 35624 appears to contribute to it.
  6. Enhancement of Quality of Life: By addressing symptoms of IBS and psychological distress, B. Longum 35624 has been shown in some studies to improve the overall quality of life for individuals struggling with these conditions. This whole-body benefit underscores the interconnectedness of gut health and general well-being.

It's important to reiterate that "benefits" here refer to areas where scientific studies have indicated positive outcomes. Individual experiences can differ, and these are not guaranteed effects for everyone.

Dosage and Administration of Bifidobacterium longum 35624

When considering a Bifidobacterium longum 35624 supplement, understanding the appropriate dosage and duration of use is critical for maximizing potential benefits and aligning with research findings.

Typical Dosage

Most clinical studies investigating B. Longum 35624 have utilized a dosage of 1 x 10^9 Colony Forming Units (CFU) per day. This is equivalent to 1 billion CFU. This dosage is typically delivered in a single capsule or sachet. It's crucial to check the product label of any supplement to ensure it provides this specific strain at the studied concentration. Generic probiotic products often list CFUs for a blend of strains, making it difficult to ascertain the exact amount of B. Longum 35624 present.

Duration of Use

The duration of supplementation in studies has varied, but many successful trials demonstrating benefits in IBS symptoms and psychological well-being have lasted 8 weeks or longer. For instance, an 8-week course is frequently cited in research. Some studies extend to 12 weeks or even longer. Consistent daily intake over an extended period appears to be important for establishing and maintaining its effects. Short-term use (e.g. a few days) is unlikely to yield significant, lasting benefits for chronic conditions.

Administration

B. Longum 35624 is typically taken orally, usually once daily. Some manufacturers recommend taking it with food, while others suggest taking it on an empty stomach. Always follow the specific instructions provided by the supplement manufacturer. Given that it is a live organism, proper storage (usually at room temperature, but check the label for refrigeration requirements) is essential to maintain its viability.

Important Considerations for Dosage and Supplementation:

  • Strain Specificity: Always ensure the product explicitly states Bifidobacterium longum 35624. Generic B. Longum products may not offer the same effects.
  • CFU Count: Verify that the CFU count matches or is close to the studied dosage of 1 billion CFU.
  • Consistency: Probiotic benefits are often dose-dependent and require consistent, daily intake.
  • Individual Response: As with any supplement, individual responses can vary. It may take several weeks to notice potential effects.
  • Consult a Healthcare Professional: Especially if you have underlying health conditions, are pregnant or breastfeeding, or are taking other medications, it's advisable to consult with a doctor or registered dietitian before starting any new supplement regimen.

Sources of Bifidobacterium longum 35624

Unlike some other beneficial bacteria that can be found in a variety of fermented foods, Bifidobacterium longum 35624 is a highly specific, patented strain. This means it is not naturally present in common fermented foods like yogurt, kefir, or sauerkraut.

The primary source for B. Longum 35624 is dietary supplements. It is typically found in probiotic products that explicitly list this strain by its full name and number. One prominent example is the Align probiotic, which contains Bifidobacterium longum 35624 as its sole active ingredient. Other brands may also license and incorporate this specific strain into their formulations.

When looking for sources of B. Longum 35624, always:

  • Read the label carefully: Look for the exact designation "Bifidobacterium longum 35624" or "Bifidobacterium longum subsp. Longum 35624".
  • Check the CFU count: Ensure the product provides a clinically studied dose, typically 1 x 10^9 CFU (1 billion) per serving.
  • Verify manufacturer reputation: Choose supplements from reputable manufacturers that adhere to quality control standards.

There are no known food sources that naturally contain B. Longum 35624. While fermented foods contain various beneficial bacteria, they do not contain this particular, isolated strain. Therefore, if you are specifically seeking the benefits associated with B. Longum 35624, a targeted supplement is the only reliable way to obtain it.

Potential Side Effects and Who Should Exercise Caution

While Bifidobacterium longum 35624 is generally considered safe and well-tolerated, like any supplement, it can have potential side effects, and certain individuals should exercise caution or avoid its use.

Common and Mild Side Effects

The most commonly reported side effects, especially when first starting probiotic supplementation, are mild and transient. These can include:

  • Gas and Bloating: As the gut microbiota adjusts, some individuals may experience increased gas or bloating. This usually subsides within a few days or a week.
  • Mild Abdominal Discomfort: Temporary cramping or a change in bowel habits might occur.

These symptoms are often a sign that the gut environment is adapting to the new bacteria and typically resolve as the body adjusts.

Who Should Exercise Caution or Avoid Bifidobacterium longum?

While B. Longum (and specifically strain 35624) is safe for most healthy individuals, certain groups should be cautious or avoid probiotics altogether without medical supervision:

  • Individuals with Compromised Immune Systems: People with severely weakened immune systems (e.g. those undergoing chemotherapy, organ transplant recipients, or individuals with severe chronic illnesses) are at a theoretical risk of bacteremia (bacteria entering the bloodstream) from even beneficial bacteria.
  • Those with Central Venous Catheters: Similar to immunocompromised individuals, the presence of a central venous catheter can increase the risk of infection.
  • Patients with Pancreatitis: Some studies have suggested that probiotics might be detrimental in severe cases of acute pancreatitis, though this is often related to different types of probiotics and specific clinical scenarios.
  • Infants with Short Bowel Syndrome: While Bifidobacterium is common in infants, specific probiotic strains in very vulnerable infants with conditions like short bowel syndrome need careful consideration due to infection risk.
  • Individuals with Allergic Reactions to Ingredients: Check the "other ingredients" list on supplements for potential allergens like dairy, soy, or gluten, if applicable.
  • Pregnant or Breastfeeding Individuals: While many probiotics are considered safe during pregnancy and lactation, there is less specific research on B. Longum 35624 in these populations. It's best to consult a healthcare provider.
  • People Taking Immunosuppressants: Probiotics could theoretically interact with immunosuppressant medications, so medical advice is essential.

It's crucial to distinguish between general mild digestive adjustments and severe adverse reactions. If severe or persistent symptoms occur, discontinue use and consult a healthcare professional. Always inform your doctor about any supplements you are taking.

AspectGeneric Probiotic SupplementBifidobacterium longum 35624 Supplement
Strain SpecificityOften a blend of generic strains; specific benefits less clear.Contains a single, well-researched strain (35624).
Research EvidenceVaries widely; some strains well-studied, many not.Extensive clinical research specifically on this strain.
Targeted BenefitsGeneral gut health, sometimes broad claims.Specific benefits for IBS symptoms and stress/anxiety.
Dosage ClarityCFU often for entire blend, hard to know individual strain dose.Clear dosage (e.g. 1 billion CFU) for the specific strain.
AvailabilityWidely available in many fermented foods and supplements.Primarily available in specific branded supplements.
CostCan range from inexpensive to premium.Often at the higher end due to patented strain and research.
Recommended ForGeneral gut support, digestive maintenance.Individuals seeking targeted relief for IBS, stress-related digestive issues.

FAQ

What is Bifidobacterium longum 35624 good for?

Bifidobacterium longum 35624 is primarily good for supporting gastrointestinal health, particularly in individuals with Irritable Bowel Syndrome (IBS), by helping to reduce symptoms such as abdominal pain, bloating, and gas. It has also been studied for its potential to positively influence the gut-brain axis, leading to reductions in daily stress and anxiety, and improving overall mood and quality of life.

What are the bad side effects of Align probiotics?

Align probiotics, which contain Bifidobacterium longum 35624, are generally well-tolerated. The most commonly reported side effects are mild and temporary, including gas, bloating, and mild abdominal discomfort, especially when first starting the supplement. These symptoms usually subside as the body adjusts. Serious side effects are rare but, as with any probiotic, individuals with severely compromised immune systems or central venous catheters should consult a healthcare professional due to a theoretical risk of infection.

Who should not take Bifidobacterium longum?

Most healthy individuals can safely take Bifidobacterium longum (including strain 35624). However, certain groups should exercise caution or avoid it without medical advice. This includes individuals with severely weakened immune systems (e.g. those undergoing chemotherapy, organ transplant recipients), those with central venous catheters, and potentially individuals with severe acute pancreatitis. Pregnant or breastfeeding individuals should also consult their doctor before use. If you have any underlying health conditions or are taking medications, it's always best to speak with a healthcare professional.

Conclusion

Bifidobacterium longum longum 35624 stands out in the crowded probiotic landscape due to its specific identity and the body of research supporting its targeted effects. It's not a generic "good bacterium" but a particular strain with demonstrated potential to alleviate symptoms of Irritable Bowel Syndrome and positively influence the gut-brain axis, contributing to reduced stress and improved mood. For those experiencing chronic digestive discomfort, particularly IBS, or seeking support for stress-related gut issues, B. Longum 35624 offers a research-backed option. When considering this supplement, always look for the explicit strain designation, the recommended dosage, and be mindful of the duration of use for optimal results. As with any health intervention, individual responses can vary, and consulting with a healthcare professional is advisable to ensure it's the right choice for your specific needs.

Nutrientic Team

The Nutrientic editorial team analyzes supplement labels from the NIH Dietary Supplement Label Database and scores them against clinical research. Our goal is to help you make data-driven supplement decisions.

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