Lactobacillus Bulgaricus – Food & Supplement Benefits


Lactobacillus Bulgaricus is one of the several strains of genus lactobacillus that is found naturally in our digestive tracts. Lactobacillus Bulgaricus has several benefits for health, and we will discuss this strain in depth in this article.

What Is Lactobacillus Bulgaricus?

Lactobacillus Bulgaricus is a type of bacteria that belongs to genus lactobacillus and is among the several types of lactobacillus strains that constitute gut flora or gut microbiota.

Lactobacillus Bulgaricus is considered a "good bacterium" that is essential for maintaining the health of your gut and also helps in keeping the bad bacteria at a minimum.  

Lactobacillus Bulgaricus Benefits

Lactobacillus bulgaricus has several benefits that include better digestive health, and improved immunity, among others. In addition, this strain of lactobacillus might be useful for treating or alleviating several health conditions that are listed below: 

Allergic Rhinitis

A literature review analyzed results of several studies that looked into the effect of probiotics on patients suffering from allergic rhinitis.

It found some minor improvement in patients that were given probiotics although the review concluded that there is not enough evidence to suggest probiotics as a treatment for allergic rhinitis and recommended further research to see if probiotics can be used for treating allergic rhinitis. (1)


A study conducted in mice found that Lactobacillus Bulgaricus could potentially be helpful in relieving constipation. The study however was NOT carried out in humans. (2)

Mental Health

Lactobacillus Bulgaricus does not only help with digestive issues but can also be of great help in improving your mental health. A literature review considered the results of 38 studies, of which 25 were conducted on animals, and 15 were conducted on humans with 2 studies conducted on both humans and animals. 

Almost all the studies used Bifidobacterium and Lactobacillus with doses between 10⁸ and 10¹⁰ colony-forming units for 2 weeks in animals and 4 weeks in humans.

The results of these studies suggest that probiotics play an important role in elevating various mental health issues such as anxiety, depression, autism spectrum disorder (ASD), obsessive-compulsive disorder, and memory abilities, including spatial and non-spatial memory. There is already preliminary evidence to suggest that probiotics such as Lactobacillus Bulgaricus can be helpful in dealing with mental health issues and hopefully more such evidence will come into light in future. (3)

IBS Symptoms

A systematic literature review analyzed results of randomized controlled trials of probiotics, prebiotics, and synbiotics on patients suffering from inflammatory bowel disease and concluded that there is sufficient evidence to suggest that adding probiotics to treatment added the remission rates among patients suffering from Crohn's disease, ulcerative colitis, and pouchitis. 

Administering a patient with probiotics regularly also helped maintain the remission and greatly improved the efficacy of the treatment. Another study (4) found that probiotic lactic acid bacteria like Lactobacillus Bulgaricus may prevent and possibly help with irritable bowel syndrome and inflammatory bowel disease symptoms in some people. (5

You should consult a medical professional if you have any IBS symptoms. This probiotic strain should not be used as a medical substitute prescribed by your doctor.

Where Is Lactobacillus Bulgaricus Found?

Lactobacillus Bulgaricus is naturally found in a wide variety of food products including:

  • Pickles.
  • Beer.
  • Wine.
  • Yogurt.
  • Sauerkraut.
  • Miso.
  • Kimchi.
  • Certain types of cheese.
  • Soy sauces.
  • Fermented bean pastes.

You can also find Lactobacillus Bulgaricus in other common fermented foods and it is also easily available in many popular probiotic supplements.

Although, supplements might also include other popular strains of lactobacillus as few supplements contain only Lactobacillus Bulgaricus.

Some popular probiotic health supplements such as Complete Probiotics Platinum from 1MD and Pro-45 from Live Conscious contain Lactobacillus Bulgaricus. 

Is Lactobacillus Bulgaricus Dangerous?

According to various studies conducted in the past (6), probiotics are usually safe to take, and healthy people can take probiotics without worrying about any adverse effect. Still, people with pre-existing health conditions, those with compromised immune systems, or those who have recently undergone surgery or any other medical procedure must consult their doctors before consuming probiotics. 

As previously mentioned, probiotics should not be considered as a treatment for underlying health conditions.

There are also some side effects of probiotics people may experience. Bloating, intestinal gas, stomach ache, and uneasiness are some of the most common side effects that are usually associated with high doses of probiotics like Lactobacillus Bulgaricus. If you face any of these side effects, then it's best to discontinue the use of the said probiotic and consult a physician.

Final Thoughts

Although, there are already several studies that tell us about the positive health effects of probiotics, very few studies have been conducted on the Lactobacillus Bulgaricus strain. In my opinion, we need more studies and data to conclusively suggest that Lactobacillus Bulgaricus can help with specific health conditions. 

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