What is Lactobacillus Salivarius?
Lactobacillus salivarius, also known as Ligilactobacillus salivarius following a 2020 reclassification, is a species of probiotic or 'good' bacteria. It is naturally found in several mucosal areas of the human body, including the mouth, the gastrointestinal tract, and the vaginal tract. Unlike other probiotics, which may pass through the body relatively quickly, L. salivarius is a fast-growing species that helps maintain a healthy microbial balance by producing compounds that inhibit harmful bacteria. These compounds include organic acids, hydrogen peroxide, and small antimicrobial peptides known as bacteriocins.
The Benefits of Taking Lactobacillus Salivarius Daily
Consistent daily intake of L. salivarius is often recommended to maintain its beneficial effects, as studies show that discontinuing supplementation can lead to the bacteria exiting the body within a week or two. By continuously replenishing the probiotic population, users can experience a range of health benefits:
- Promotes Digestive Comfort: It helps maintain a balanced gut ecosystem, which can support comfortable digestion by crowding out undesirable microbes. Some individuals report a reduction in bloating and gas.
- Supports Oral Health: As a natural resident of the mouth, L. salivarius can significantly influence the oral microbiome. Clinical trials have shown that daily intake can help reduce dental caries risk, inhibit the growth of certain oral pathogens like Streptococcus mutans, and potentially improve bad breath.
- Boosts Immune Response: A significant portion of the immune system resides in the gut, making a healthy gut environment crucial for overall immune function. Some strains of L. salivarius have been shown to enhance both the natural and acquired immune responses.
- Aids in Recovery After Antibiotics: Antibiotics indiscriminately kill both good and bad bacteria, disrupting the gut microbiome. Taking L. salivarius daily can help restore the balance of beneficial bacteria, which may help prevent antibiotic-associated side effects like diarrhea.
- Supports Cardiovascular Health (Preliminary Evidence): Some early human studies suggest that certain L. salivarius strains, particularly when combined with prebiotic fibers, may have a positive effect on blood lipid profiles, including total cholesterol and triglycerides. More research is needed in this area.
Is Daily Use Safe? Potential Side Effects and Precautions
For most healthy adults, taking L. salivarius daily is safe and well-tolerated. However, some individuals, especially when first starting a probiotic, may experience mild and temporary side effects. These can include:
- Temporary Gas and Bloating: This occurs as the gut microbiome adjusts to the new bacteria. Starting with a lower dose and gradually increasing it can help minimize this discomfort.
- Mild Abdominal Discomfort: In some rare cases, individuals might experience mild stomach upset.
Certain groups should exercise caution and consult a healthcare professional before starting a daily probiotic regimen:
- Immunocompromised Individuals: People with weakened immune systems (e.g., due to illness or medication) or those who are critically ill should consult a doctor, as there is a rare risk of infection.
- Pregnant or Nursing Women: While some studies suggest safety, it is always best to consult with a healthcare provider before taking any new supplement during pregnancy or breastfeeding.
- Individuals with Damaged Heart Valves: In extremely rare cases, probiotics can cause infections in the heart lining. People with this condition should speak with a doctor.
Dosage and Timing for Daily Intake
There is no one-size-fits-all answer for dosage, as it can vary widely between products and depends on the specific strain and individual needs. However, consistency is more important than the exact timing of day.
- General Dosage: Follow the product label directions or the advice of your healthcare provider. Supplements often range from 2 billion to 20 billion Colony-Forming Units (CFUs) per capsule or serving.
- Timing: Some experts suggest taking probiotics on an empty stomach to minimize exposure to stomach acid, such as in the morning before breakfast or before bed. However, delayed-release capsules are designed to protect the bacteria from stomach acid, making the timing more flexible. Taking it with a small meal containing some fat can also improve survival. Ultimately, the best time is the one you can stick with consistently.
- With Antibiotics: To avoid the antibiotics killing the probiotic bacteria, take the probiotic supplement at least two hours before or after your antibiotic dose. Continue taking the probiotic for at least two weeks after completing the antibiotic course.
Comparison with Other Probiotic Strains
Different probiotic species and even different strains within the same species have unique properties and target different health concerns. While there is overlap, one is not necessarily better than another; the right choice depends on your specific goals.
| Feature | Lactobacillus Salivarius | Lactobacillus Acidophilus | Lactobacillus Rhamnosus | Lactobacillus Plantarum |
|---|---|---|---|---|
| Primary Location | Mouth, gut, and vaginal tract | Small and large intestines, and vaginal tract | Intestines and vaginal tract | Gut, saliva, and fermented foods |
| Key Functions | Oral health, antimicrobial activity, gut balance, immune support | Supports digestion of lactose, nutrient absorption, and gut health | Enhances gut barrier function, helps with antibiotic-associated diarrhea | Strong survival in GI tract, antimicrobial properties, gut barrier support |
| Best For | Oral health (plaque, gums), everyday digestive comfort, and balancing mouth microbiome | Improving digestive symptoms and addressing lactose intolerance | Diarrhea prevention (especially with antibiotics), general gut health | Versatile benefits for intestinal and immune health |
| Special Considerations | Effective for oral health due to presence in mouth and antimicrobial production | One of the most researched probiotics, widely used in dairy products | Well-known for its ability to survive stomach acid and colonize | Known for high survivability in harsh conditions like stomach acid |
How to Choose a Lactobacillus Salivarius Supplement
Selecting a high-quality supplement is crucial for effectiveness and safety. Consider these factors when making your choice:
- Survivability: Look for products with a delivery system designed to protect the bacteria from stomach acid, such as delayed-release capsules or enteric coatings.
- Clear Labeling: The product should clearly state the specific strain (e.g., L. salivarius WB21, L. salivarius CECT5713) and the number of CFUs per serving.
- Third-Party Testing: Choose products that have been tested for purity, potency, and quality by an independent third party.
- Storage: Always follow the storage instructions on the label, which may include refrigeration to maintain freshness and potency.
Conclusion
Yes, for most healthy individuals, taking Lactobacillus salivarius daily is a safe and effective way to support both gastrointestinal and oral health. Clinical studies confirm its safety and highlight benefits from improved oral hygiene to better digestive comfort. Consistency is key to maintaining a balanced microbiome and reaping the long-term benefits. However, it is always wise to consult a healthcare provider, especially for those with compromised immune systems or during pregnancy, to ensure it is the right supplement for your specific health needs.
For more detailed clinical data on the benefits of specific strains, see this article on the effect of L. salivarius tablets on caries risk factors from the National Institutes of Health.
Can You Take Lactobacillus Salivarius Daily: Your Questions Answered
Can I take Lactobacillus salivarius daily without a break?
Yes, it is generally recommended to take Lactobacillus salivarius daily for consistent benefit, as probiotics are transient and do not permanently colonize the gut. Many factors can disrupt the microbiome, so a daily dose helps maintain balance.
Are there any long-term risks associated with taking Lactobacillus salivarius daily?
There is no current research suggesting that the body becomes dependent on probiotics or that long-term daily use is unsafe for healthy individuals. Studies have indicated safety over extended periods.
What are the main benefits of daily Lactobacillus salivarius supplementation?
Daily supplementation can support a balanced gut microbiome, improve oral health by reducing plaque-causing bacteria, aid digestive comfort, and contribute to a healthy immune response.
Can Lactobacillus salivarius cause side effects when taken daily?
Some individuals, especially those new to probiotics, may experience mild and temporary side effects like gas, bloating, or mild abdominal discomfort as their system adjusts.
Is it better to take Lactobacillus salivarius on an empty stomach or with food?
Either approach can work depending on the product and your preference. Taking it with a small meal may enhance survival, while delayed-release capsules are protected from stomach acid regardless of timing. Consistency is most important.
What should I look for when buying a Lactobacillus salivarius supplement?
Choose a product that lists the specific strain and CFU count, uses a delivery system for survivability (like delayed-release capsules), and is third-party tested for quality.
Should I consult a doctor before taking Lactobacillus salivarius daily?
Yes, it is advisable to consult a healthcare provider, especially if you have a compromised immune system, are pregnant or nursing, or have a pre-existing medical condition.
How does Lactobacillus salivarius differ from other common probiotics?
L. salivarius is particularly noted for its benefits to oral health due to its presence in the mouth, and its ability to produce antimicrobial compounds. While it shares some gut benefits with other probiotics like L. acidophilus or L. rhamnosus, each strain has unique properties.
