Pro-subtilis (Bacillus subtilis DE111®)
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Pro-subtilis

Bacillus subtilis DE111® 5bln CFU

Discover Pro-subtilis

Why Pro-subtilis probiotic is advertised of having many benefits while being composed of a single probiotic strain

Pro-subtilis - a product of guaranteed excellence

Backed by 30+ scientific studies, Bacillus subtilis DE111® has proven beneficial across ages, lifestyles, and needs.

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Bacillus subtilis DE111® is a spore-forming bacterium that can survive passage through the digestive tract.

Growth and Survival in the Intestine

The ability to reach the intestine alive is a key characteristic of probiotic species.

Unlike some lactic acid bacteria such as Lactobacillus or Bifidobacterium, which may require specific conditions to remain viable, Bacillus subtilis forms a naturally resistant spore that helps it withstand challenging environments, including stomach acidity.

DE111 germination in the small intestine

B. subtilis DE111® concentration in the small intestinal tract of healthy individuals with an ileostomy stoma. Vegetative DE111® (●), DE111® spores (■), and placebo (▲). Values are average concentrations (n = 11) ± standard deviation.

A randomised, double-blind, placebo-controlled clinical study has demonstrated the presence and germination of Bacillus subtilis DE111® in the human small intestine.

(Merritt & al., “Presence and Germination of the Probiotic Bacillus subtilis DE111® in the Human Small Intestinal Tract”, 2021)

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Helps maintain regular bowel movements

Supports normal digestive function

Digestive comfort and regularity

Bacillus subtilis DE111® is a spore-forming probiotic strain that can survive passage through the digestive system.
Maintaining a balanced intestinal microbiota is important for digestive comfort and regularity.

A randomised, placebo-controlled human study has investigated the effects of Bacillus subtilis DE111® on digestive parameters in healthy adults.
Participants consuming DE111® showed differences in stool consistency and intestinal comfort compared with placebo under study conditions.
(Journal of Probiotics & Health, 2020)

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Supports a balanced gut microbiota

Bacillus subtilis DE111® contributes to maintaining a healthy intestinal environment

Clinical study investigating the interaction of DE111® with gut microbiota

A balanced intestinal microbiota plays an important role in overall digestive well-being.
Bacillus subtilis DE111® is a spore-forming probiotic strain that can survive passage through the digestive system and interact with other naturally occurring bacteria in the gut.

Pro-subtilis promotes the fecal counts of Bifibobacterium longum

A randomised, placebo-controlled clinical study examined the effects of Bacillus subtilis DE111® on the gut microbiota of healthy adults.
Analysis of faecal samples showed changes in the relative abundance of several bacterial groups, including naturally present Bifidobacterium species.
(Merritt et al., Journal of Probiotics & Health, 2020)

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Bacillus subtilis DE111® has been studied for its interaction with the gut microbiota and immune markers

Supports the body’s natural defences

Firmicutes to bacteroidetes ratio is important

The gut microbiota plays an important role in the normal function of the immune system.
A balanced composition of intestinal bacteria, including the ratio of Firmicutes to Bacteroidetes, is considered a marker of overall gut health.

A randomised, placebo-controlled clinical study investigated the effects of daily consumption of Bacillus subtilis DE111® (1 billion CFU) on immune and microbiota parameters in healthy adults.
The study observed changes in the distribution of certain immune-cell populations and microbial groups compared with placebo.
(Merritt et al., International Journal of Molecular Sciences, 2021)

Clinical studies have explored the impact of DE111® on gut and immune balance

Another study in children reported differences in gut-microbiota composition after eight weeks of DE111® consumption, including variation in several Bacteroidetes and Firmicutes genera associated with normal immune regulation.
(Paytuví et al., Frontiers in Microbiology, 2020)

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It does produce short chain fatty acids(SCFA).

Optimizing nutrient absorption

“In vitro and in silico evaluation of the probiotic and functional properties of Bacillus subtilis DE111®”

Using a combination of in-vitro functional assays and genome analysis, researchers found that DE111® demonstrated the ability to survive harsh conditions such as those found in the GI tract, as well as pasteurization. 



It also produces short-chain fatty acids, which support healthy lower GI function, as well as an increase in enzymatic activity (such as proteases, peptidases and esterases) and carbohydrate metabolism, pointing to its ability to promote a more efficient digestive process. 



Additionally, researchers observed the strain’s ability to outcompete several types of unwanted bacteria associated with urinary, skin and intestinal flora imbalances.

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Supports post-exercise wellbeing

Bacillus subtilis DE111® has been studied in active individuals

A clinical study entitled “Effects of Probiotic (Bacillus subtilis DE111®) Supplementation on Immune Function, Hormonal Status, and Physical Performance in Division I Baseball Players” was published in the journal Sports.
The research investigated daily consumption of Bacillus subtilis DE111® (1 billion CFU) during an eight-week training period in healthy athletes.

Results showed differences in certain physiological markers, including cytokine levels, compared with placebo.
These findings suggest that Bacillus subtilis DE111® may play a role in supporting normal post-exercise balance when combined with appropriate nutrition and training.

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A study about body fat percentage and improved sport performance

Improving body composition

Effects of Probiotic (Bacillus subtilis DE111®) Supplementation During Offseason Resistance Training in Female Division I Athletes

In a study involving female collegiate athletes during offseason training, researchers found that DE111® (1 billion CFU), in conjunction with adequate post-workout nutrition, can improve body composition and indices of athletic performance. 



The results of the study showed that compared to placebo, the probiotic DE111® produced statistically significant improvements in the reduction of body fat percentage and a strong trend indicating improved performance of the deadlift exercise.