What Is Bacillus Coagulans?
Bacillus coagulans (B. coagulans) is a remarkably interesting type of good bacteria that is also a probiotic that produces lactic acid. The difference with this probiotic over some other such as Lactobacillus is that it produces spores during a reproductive cycle, so it is able to be dormant and survive under circumstances that kill other probiotics.
The mere fact that it’s able to continue its work, even under conditions such as high acid levels in the stomach, makes this probiotic especially effective for lowering the symptoms of stomach discomfort and illnesses.
B. coagulans provides needed lactic acid to our digestive systems which works to balance pH levels and lower the growth of bad bacteria. So, choosing to balance and sustain intestinal health is a wise choice and this supplement might be just what you need.
Bacillus Coagulans Benefits and Uses
There are small human and animal studies that have compelling evidence of effectiveness, but more in-depth, larger studies are necessary. However, here is a list of some of the studies of benefits you may derive from this probiotic.
- Arthritis (Rheumatoid): A small study that analyzes the ability of B. coagulans to lower inflammation shows results of less inhibition of activities. It also shows C-reactive protein (CRP) reduction which indicates lower inflammation.
- Constipation: In a Japanese study, analyzation of the effects of B coagulans on bowel movements and fecal qualities of participants over a two-week time. Interestingly, the results show improvements to bowel movements with added ability of complete emptying.
- Immunity Booster: In a study with 10 healthy men and women in 2009, the results show boosts to the immune system, fights virus respiratory infections more commonly known as the cold and flu.
- Intestinal Balance: Another small study tested B. coagulans on after-meal symptoms of abdominal pain, flatulence, and stomach distension. The results of the study show improvements in both abdominal extension and pain.
- Respiratory Tract Infection: A small study with 10 men and women shows increases to T cell production derived from adenovirus and influenza A. With the increase in these cells, the body is better able to fight off illnesses. Their conclusions state that the particular patented form of B coagulans used in this study shows effectiveness.
- Vaginal Health: B. coagulans also may be effective in support of normal vaginal health and balanced vaginal flora. It may give the protection you need to prevent candida infections.
What About Combinations?
B. coagulans has limitations in terms of studies to date. There are only smaller studies and they are limited. However, there are other probiotics that have stronger evidence and it is beneficial to combine B. coagulans with other strains of probiotics in what is known as a broad-spectrum supplement.
One recommendation is to look for Lactobacillus acidophilus on the label which also serves to relieve diarrhea, eczema, IBS, and aids with diabetes. Also look for Saccharomyces boulardii for relief from traveler’s diarrhea and diarrhea from taking antibiotics.

Bacillus Coagulans Risks & Possible Side Effects
It’s always a great idea to check with your medical professional when beginning a new supplement. Additionally, it is highly important to know how your supplements interact with other medications you may be taking, so do your due diligence in your research and in taking precautions as directed by your physician.
Another consideration when searching for supplements is to read the labels and search them for a third-party seal such as ConsumerLab, NSF International, and U.S. Pharmacopeia.
There are some known side effects that may present some risks. They are as follows:
- B. coagulans interfere with immunosuppressant medication and antibiotics. If you are taking these medications, be certain to check with your doctor before starting this supplement.
- It’s good to keep in mind that all probiotics may trigger allergic reactions in some people.
- If you are pregnant or lactating, do not take this supplement simply because there is not enough research to support the safety of this supplement under these conditions.
- There is research that indicates probiotics might interact with immunosuppressant drugs. This is definitely a topic to discuss with your physician before proceeding if you take medications that suppress the immune system.
- B. coagulans may be safe when taken as directed as there are no known side effects to date.
Bacillus Coagulans Supplement & Dosage
You will find B. coagulans in supplemental form such as capsules or gelatin capsules. It also comes in vegan or vegetarian forms. Interestingly, the B. coagulans remain dormant until they activate in the intestines when taken in the supplemental form. It is also available as a loose powder.
Another way to get your quota of B. coagulans is to eat it in fermented foods. Some of the fermented foods that are a reliable source of B. coagulans are yogurt, sauerkraut, and kimchi. What is even better is combining supplements with foods rich in B. coagulans for a power booster to your probiotic needs.
As there is no set dosage for the supplement, ensure that you follow the manufacturer’s recommendations. Also, do your research and shop for the highest quality for the best results. Again, B. coagulans may be safe when taken as directed as there are no known side effects to date.
There are studies that indicate between 300 million and 1 billion colony-forming units (CFU) are safe.
Look for B coagulans in the refrigerated section in your natural food store. Then, remember to store them at cooler temperatures.
Bacillus Coagulans Summary
Although the research is limited, the results of current studies are promising for B. coagulans. Look for this probiotic as a stand alone supplement or in combination with other probiotics.
Recommendations state that taking a broad spectrum supplement that contains different strains of probiotics might be more beneficial than taking B. coagulans alone. Be sure to take precautions in terms of other medications you may be taking and remember to check with your prescribing physician before taking supplements with existing medications.
These statements have not been evaluated by the Food and Drug Administration. Products discussed are not intended to diagnose, treat, cure, or prevent any disease.