Bacillus Subtilis – Exploring a Super Bacterium

UPDATE: Even if we cannot see them: Microorganisms determine the health and well-being of us humans in unexpected ways. An estimated 100 trillion bacteria from 2000 different species are essential for a functioning immune system in our intestines alone. Whether digestion, immune system, or mental and physical performance: These organisms greatly influence our health and decide whether we feel fit and how well our digestive system works.

A particular bacterium has been the focus of medical research for several years. In various studies, Bacillus Subtilis impresses with unique properties and could well become the next “star” among probiotics.

Fun facts about Bacillus subtilis:

First name: Vibrio subtilis, discovered and named in 1835 by Christian Gottfried Ehrenberg. It was finally renamed Bacillus subtilis by Ferdinand Cohn in 1872.

The Bacillus subtilis holds the record for the most extended survival in space: six full years on the back of a NASA satellite. Respect!

Bacteria can pretend to be “dead”: When stressed, Bacillus Subtilis turns into a spore and goes into a dormant state where it can tolerate extreme environmental conditions.

A bacterium that loves the tropics: Bacillus subtilis has an optimal growth temperature in the range of 30-39 ° C (86-102 ° F).

Bacillus Subtilis DSM 21097: Probiotic does it all for the intestine

What exactly is the Bacillus Subtilis DSM 21097?

Bacillus Subtilis DSM 21097: Probiotic does it all for the intestine

It is a naturally occurring bacterium that scientists have selected for research. It does not constantly live in the human body but can survive on the surfaces of the digestive tract for up to 2 weeks. More than 70 types of enzymes, 30 types of antibiotics, antimicrobial substances, essential amino acids, vitamins, nitrogenous substances, and micro and macro elements are produced by it during this time. Impressive, isn’t it?

Bacillus Subtilis DSM 21097 essentially supports the absorption of nutrients and the health of all mechanisms in the body that are influenced by the intestinal flora. If pathogenic bacteria develop in the intestine, which could be responsible for poor digestion, food intolerance, allergies, or immune reactions, the Bacillus Subtilis DSM 21097 produces antibiotic-like substances, fights those issues, and brings the intestine back into balance.

The possible effects pf Bacillus subtilis DSM 21097:

Restoration of the body’s intestinal flora
Reduction of bloated stomach and gas
Normalization of digestion
Increased resistance to attacks on the mucous membranes
Synthesis of essential amino acids and vitamins
Inhibition of pathogenic and conditionally pathogenic microorganisms

Occurrence and Conditions For Growth

Bacillus subtilis is a bacterium that belongs to the group of aerobic spore formers. In nature, the bacterial strain occurs in soils rich in humus (hay), dust, air, water, and humans and animals’ intestines.

One advantage of Bacillus subtilis as a probiotic is its incredible high resistance to acids and heat. In contrast to other probiotics, it can get to where it can develop its favorable properties: in our intestines!

Bacillus Subtilis reaches the intestines undamaged

Even in 70% ethanol, the Bacillus subtilis can still form spores. Therefore, a significantly higher amount of the probiotic can reach the intestines because stomach acid cannot attack it like other probiotics. The Bacillus subtilis is stable even at room temperature and does not need to be refrigerated.

As recent studies have shown, exposure to the gastrointestinal tract does not reduce its properties. Bacillus subtilis can reduce the growth of pathogenic bacteria in the intestine and have antibacterial and antifungal effects.

What functions does the intestinal flora take on in the body?

A stable and balanced intestinal flora is essential for a functioning digestive system and other functions.

Here are the top 8 at a glance!

Processing and digestion of our food

The intestinal wall needs bacteria


Fight harmful bacteria

Strengthening and regulating the immune system

Supply of vitamins (folic acid, B1, B3, B6, B12, K)

Energy supply for the intestinal epithelium (intestinal wall)

Stimulation of the intestinal epithelium

Influence on body weight and obesity.

Probiotics (Bacillus subtilis) for irritable bowel syndrome?

Causes for genetic predisposition, stress, psychological stress, infections, or antibiotics, medicine only knows some of the triggering factors. However, what is clear is that if the intestinal flora is out of balance, health suffers.

This probiotic bacteria may be the key to alleviating symptoms. Contrary to what has long been thought, bacteria are not only responsible for digestion. New findings show that they have a variety of tasks in the body. They seem to influence our mental state, body weight, our immune system, and the development of certain diseases.

Conditions related to an unbalanced gut are depression, rheumatism, diabetes, multiple sclerosis, and irritable bowel syndrome.

Medical studies confirm that stool and intestinal flora of irritable bowel patients differ significantly from those of healthy people. For example, so-called Proteo and Firmicutes bacteria occur more frequently, while the number of Acinetobacter, Bacteroides, and Bifidobacteria is reduced.

“Probiotics have a variety of effects on the body. For example, they inhibit the growth of harmful germs and their adhesion to the intestinal mucosa, relieve inflammation, strengthen the immune system and improve intestinal movement,” explains Prof. Peter Layer, head of the Israelite Hospital in Hamburg Germany. He carried out some studies on this topic and is convinced of the positive effects.

And he is not alone in this: as early as 2011, the German Society for Gastroenterology, Digestive and Metabolic Diseases (DGVS) included therapy with probiotics in its guidelines for treating irritable bowel syndrome. “I am convinced that the microbiome plays an important role for irritable bowel patients,” confirms Prof. Layer to the “Apotheken Umschau.” The number of studies on this topic has multiplied in recent years, and new findings are constantly being added. “We can say that in many cases, the symptoms of irritable bowel syndrome can be improved by the intestinal flora.”

What does this mean for those affected?

One thing is sure: eating more yogurt is not enough. For making a difference among millions of intestinal bacteria, larger quantities of probiotics are needed so that positive, living bacteria can get into the intestine. The choice of the bacterial strain is also decisive.

For example, Bifidobacterium infantis and Lactobacillus casei Shirota help against flatulence, while E. coli Nissle has proven itself in constipation and lactobacteria attack in diarrhea. The “star bacterium” Bacillus subtilis activates the natural defenses and supports gastrointestinal diseases such as diarrhea or irritable bowel syndrome.

Bacillus subtilis against nail fungus?

Nail fungus (med. Onychomycosis) is a common disease of the toenails or, less often, the fingernails. It is triggered by various types of yeast, mold, or filamentous fungi. In the beginning, an infection is rather inconspicuous and shows itself as dull and white-yellowish discolored nails. In later stages, the nail substance can be destroyed.

The earlier treatment for nail fungus is done, the better. Although it is usually a benign disease, it can be an enormous psychological and social burden for those affected due to aesthetic changes to the nails.


What treatment options for those affected have for nail fungus, and what role could Bacillus subtilis play in this? But first, take a look at the first essential steps to be taken to get the nail fungus under control:

Make an appointment with the doctor because it is difficult to get rid of the nail fungus without professional medical advice!

Off to foot care: a good podiatrist trained in medical treatments is worth its weight in gold.

Important: cut back or file thickened nails.

Wear air-permeable shoes as often as possible: the feet must be able to “breathe” and be kept cool and dry.

The shoes must not be tight at the tip. This leads to irritation in thickened nails.

Fresh socks made from natural fibers every day!

It is essential to treat the shoes with special agents so that the fungus does not spread in the shoes.

Can the bacterium Bacillus subtilis help with nail fungus?

The therapeutic approach for nail fungus is treatment with antifungal agents, so-called antimycotics. Basically, there is a superficial (local) therapy from an internal (systemic) treatment. For external

Bacillus Subtilis and Side Effects?

While the studies have generally been small (compaired to those conducted by the billion dollar pharma industry), researchers have been investigating Bacillus subtilis for its benefits and possible side effects. So far, studies have shown no side effects.

However, always consult your doctor if you plan to take nutritional supplements.


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Please consult your physician before implementing any new diet, exercise and dietary supplement programs, especially if you have preexisting medical conditions or are taking prescribed medications. The statements made on this website are for educational purposes only and are not meant to replace the advice of your physician or healthcare provider.