The Health Benefits of Bacillus Coagulans

Bacillus coagulans is a beneficial bacteria known as a probiotic. Found naturally in your intestines, probiotics are beneficial microorganisms that may promote health and protect against infections. Similar to Lactobacillus strains, B. coagulans is used to treat diarrhea and prevent candida infections.

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In alternative medicine, dietary supplements containing the probiotic are used to relieve symptoms of colitis, Crohn's disease, and irritable bowel syndrome, and also may help to heal the lining of the intestines and combat leaky gut syndrome

B. coagulans is believed to stimulate the immune system and some alternative medicine proponents claim that it can fight cancer as well, however, the research is limited.

In addition, taking B. coagulans and other probiotics while taking antibiotic medications is recommended to guard against gastrointestinal side effects and yeast infections.

Health Benefits

Although there is currently a lack of large-scale studies testing the effects of B. coagulans, there's some evidence that this probiotic may offer certain health benefits. Here's a look at some findings from the available research.

Irritable Bowel Syndrome

Some research suggests that B. coagulans may help treat certain symptoms of irritable bowel syndrome and other inflammatory bowel diseases.

A small study published in Postgraduate Medicine in 2009, for example, indicates that B. coagulans may help to relieve abdominal pain and bloat related to irritable bowel syndrome. In the study, 44 patients took either B. coagulans or a placebo every day for eight weeks. At the study's end, those treated with B. coagulans showed a significantly greater improvement in pain and bloating compared with those given the placebo.

Additionally, a pilot study published in Methods and Findings in Experimental and Clinical Pharmacology in 2009 found that B. coagulans may be helpful to irritable bowel syndrome patients suffering from diarrhea. In an eight-week-long experiment involving 52 diarrhea-predominant irritable bowel syndrome patients, researchers found that those given B. coagulans experienced a significantly greater reduction in an average number of bowel movements per day than those given a placebo.


Probiotics have long been used to treat diarrhea. A 2019 study published in the European Journal of Clinical Pharmacology affirms B. coagulans effectiveness for this use. In the small clinical trial, 60 subjects with acute diarrhea and stomach pain were given either B. coagulans or a placebo. Subjects taking the probiotic recovered sooner than the placebo group.

Boost Immunity

B. coagulans may help boost the immune system and stave off virus-induced respiratory tract infections, such as the common cold and the flu, according to a small study published in Postgraduate Medicine in 2009. The study involved 10 healthy men and women, each of whom was given B. coagulans daily for 30 days.

After their 30-day treatment, all of the study members were exposed to adenovirus (which causes respiratory illness) and influenza A (a strain of flu virus). Researchers found that using it significantly increased the production of cells that play a key role in the body's immune response. 

Possible Side Effects 

There is limited research on the side effects of B. coagulans. Probiotics in general play a role in the delicate ecosystem of gut flora in the digestive tract and altering the balance of gut bacteria can lead to gas and bloating at times.

Some research suggests probiotics may interact with medications used to suppress the immune system. Talk to your doctor before using B. coagulans if you take any type of immunosuppressant drug.

The safety of supplements in pregnant women, nursing mothers, children, and those with medical conditions or who are taking medications has not been established. 

Dosage and Preparation

B. coagulans is available as both a capsule and a loose powder and is sold on its own or in combination with other probiotics.

There is no standard dose for B. coagulans, however, dosages between 300 million and 1 billion colony-forming units (CFU) have been studied in the treatment of irritable bowel syndrome and believed to be safe.

What to Look For

B. coagulans is sold as a stand-alone supplement or in combination with other probiotics. If purchasing a broad-spectrum probiotic, read the label to ensure it contains B. coagulans.

Dietary supplements are not regulated by the U.S. Food & Drug Administration. To make sure you are buying a quality probiotic, look for a trusted, independent third-party seal on the label, such as U.S. Pharmacopeia, NSF International, and ConsumerLab.

Other Questions

Is it better to get B. coagulans or a combination probiotic?

While research suggests some health benefits of B. coagulans, there are other probiotics with stronger science to back them up. Combining different strains of probiotics in a broad-spectrum supplement can be more beneficial than taking B. coagulans alone. Look for products that contain Lactobacillus acidophilus, which may help relieve diarrhea, treat eczema, manage irritable bowel syndrome, and aid in diabetes control, and Saccharomyces boulardii, which may help fend off both traveler's diarrhea and diarrhea associated with the use of antibiotics, as well as soothe certain symptoms of irritable bowel syndrome.

Can I get probiotics from food?

Yes! You can increase your dietary intake of probiotics by consuming cultured dairy products like yogurt or kefir and fermented foods such as sauerkraut, kimchi, miso, and tempeh.

A Word From Verywell

Due to the limited research, it's too soon to recommend B. coagulans as a treatment for any condition. If you're considering using B. coagulans for any health purpose, it is important to discuss it with your physician and pharmacist. Mixing supplements with other medications may have unintended consequences. Self-treating a condition and avoiding or delaying standard care can have lasting negative health effects.

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