Lactobacillus bulgaricus is one of the healthy bacteria which make up the microflora of the human gut.
Lactobacillus is comprised of many strains, of which bulgaricus is only one — but it is an important one.
In addition to being used as a probiotic supplement, other common uses for lactobacillus bulgaricus include the production of Swiss cheese and as a starter culture for some yogurts.
The longevity of the Bulgarian people has often been attributed to their consumption of large quantities of yogurt which are seeded, specifically, with lactobacillus bulgaricus.
This probiotic bacteria was discovered in 1905 by Bulgarian scientist Stamen Grigoroff. Later, a Russian scientist, specializing in immunology, theorized that toxic substances were produced in our bodies by some of the normal bacteria living within our gut.
He maintained that the Bulgarian yogurt seeded the intestines with good bacteria, offering the benefit of a longer and healthier life to the yogurt-eating Bulgarian people.
He proposed “seeding” the intestine with lactobacillus bulgaricus found in Bulgarian yogurts to boost well-being, health and longevity. His theory wasn’t exactly right, but he was on to something.



- Supports a healthy immune system & microflora
- Promotes digestion & nutrient absoprtion
- Combats pathogenic bacteria; Improves metabolism
Lactobacillus Bulgaricus Probiotics
Related Topics
- What are Probiotics?
- Probiotic Benefits
- Best Probiotic Strains
- Probiotic Side Effects
- Probiotic Supplements
- Probiotic Foods
- Best Probiotic Yogurt
- Probiotics for Children
- Probiotics for Women
- Yeast Infections
- What are Prebotics?
- Lactobacillus Acidophilus
- Lactobacillus Bulgaricus
- Lactobacillus Rhamnosus
- Bifidobacterium Bifidum
- Bifidobacterium Infantis
- Bifidus Regularis
L. bulgaricus works to keep the pH balance in the gastrointestinal tract lower so that unhealthy bacteria cannot take hold and colonize.
It has the ability to thrive, despite acidity levels which are toxic for many bacteria, and it works to populate and colonize itself along the lumen walls of the intestines.
This microorganism is self-regulating, meaning it grows more when it is needed and diminishes when it is not.
Studies show that lactobacillus bulgaricus and other bacteria are beneficial to the microflora within our gut. They serve to out-colonize pathogenic bacteria, as well as creating an environment in which many bad bacteria cannot survive.
Uses for IBS, IBD, Crohn’s and Diarrhea
Lactobacillus bulgaricus is able to withstand the extreme environment of the upper GI tract. It then feeds on dairy products and converts them into environmental hazards for pathogenic bacteria.
Several strains of the lactobacillus bacteria have been used, historically, by many cultures to treat or prevent symptoms and diseases which occur in the GI tract of humans and animals.
Lactobacillus bulgaricus can be used alone or in combination with other probiotics to help with certain digestive disorders; diseases of the GI tract like IBS, IBD and Crohn’s; diarrhea; and to boost the immune system.
It is a symbiotic organism and works hand in hand with other probiotic bacteria to create an optimal gut microbiome.
Benefits
Lactobacillus bulgaricus helps the body break down enzymes such as lactose. This can be helpful to people who experience lactose intolerance. It also works to aid in general digestion and to shorten recovery times with relation to certain diarrheas.
It is known to have antibiotic properties and may help to prevent infections and to keep the growth of pathogenic bacteria to a minimum.
Sources and Dosage
Lactobacillus bulgaricus is a naturally occurring and self-regulating probiotic already living in our gastrointestinal tract.
Individuals experiencing GI symptoms or disease may need to supplement with lactobacillus bulgaricus to restore or maintain a healthy balance of microbial gut flora.
While it is common to find lactobacillus bulgaricus listed on the ingredient labels of some yogurt products and in certain probiotic drinks, it often happens that, when tested, the cultures contained in the product are no longer viable (alive) or that, these products contain no lactobacillus bulgaricus at all.
When purchasing lactobacillus bulgaricus, look for it in a standardized supplement form for best results. It is available in tablets or granules, preferably in stable freeze-dried pouches which can keep the bacteria viable for longer periods of time.
Depending on frequency of dose, powder supplements are often mixed together with smoothies, shakes or other daily drinks.
Dosage will vary depending on your symptoms. Refer to the package instructions or your physician for dosing directions. Common dosing amounts are 3-4 tablets per day.
Side Effects
Supplementation with lactobacillus bulgaricus is generally safe for healthy people but it is recommended you seek the advice of a medical professional before taking any supplement. Long term effects of probiotics have not been studied extensively.
Side effects, if experienced at all, are usually quite mild and include flatulence and bloating. More serious side effects can occur rarely.
It is not recommended you take more than directed or take in conjunction with other probiotics unless specifically directed by a medical professional.
Supplementation with lactobacillus bulgaricus is not recommended for children unless under the supervision of a doctor.
Lactobacillus Bulgaricus in Review
This is a time-tested helpful bacteria which has been shown to reside naturally within the human microflora of the gut.
Besides aiding digestion and helping with symptoms of many GI tract disorders, lactobacillus bulgaricus also works symbiotically to support other non-pathogenic bacteria in the gut.
It is a hardy and tough microorganism and is reported to contribute to overall health and longevity.
Supplementation with freeze-dried granules provides an accurate means of dosing and assurance of potency.
Article last updated on: April 27th, 2018 by Nootriment