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Optim Propionibacter


Take advantage of a discount based on the quantities purchased.
5% for two, 8% for three, 10% for four and 12% for more than five products.

Food supplement containing lactic ferments – 20 capsules

Propionibacterium freudenreichii sp. shermani is a strain of propionic bacteria that helps to promote good intestinal flora and support bowel function.

Plant-based capsule Veggie Capsule
Sans glutenGluten-Free
Made in BelgiumMade in Belgium

Optim Propionibacter is a dietary supplement containing the lactic ferments Propionibacterium freudenreichii sp. Shermani, which help to promote good intestinal flora and support transit. 

Propionibacterium freudenreichii is a known lactic ferment. It is traditionally involved in Swiss cheeses' maturation and helps form the “eyes” in the cheese.

This lactic ferment helps to balance the gut microbiota (intestinal dysbiosis). It stimulates the growth of healthy bacteria, the bifidobacteria, and helps to reduce constipation by increasing the frequency of defecation.

In the intestine, Propionibacterium freudenreichii is involved in the production of propionic acid or propionate, a short-chain fatty acid.

Propionate has been shown to modulate lipid metabolism (cholesterol, triglycerides). learn more
Propionibacterium freudenreichii sp. shermani is a strain of propionic bacteria that helps to promote good intestinal flora and support bowel function.

Serving Size

Take one capsule a day, preferably during a meal with a glass of water.

Precautions for use: 


It is advisable to follow recommended doses and have a diverse and balanced diet and a healthy lifestyle. Keep out of reach of children. Keep in a dry place. 

Filler: organic acacia gum*; Propionibacterium freudenreichii sp. shermanii**; Coating: capsule (hydroxypropyl methylcellulose); Filler: calcium carbonate.

*ecological agriculture; **Contains milk


Nutritional information:

Lactic ferment

1 capsule

Propionibacterium freudenreichii  sp. shermanii 

1x109 CFU*

*CFU: Colony Forming Unit

Nutritional values per 100g: 
Carbohydrates: 21g – Fat: 0g – Protein: 1g

Energy value per 100g: 187 Kcal / 780 KJ 

Net weight: 7.5 g 

Packaging: 20 capsules (2 blisters of 10 capsules) 

Notification number (Belgium): NUT_AS 2708/10
CNK 4280-988

EAN: 542503792014-8

What is Propionibacterium?

Propionibacterium freudenreichii is a type of bacterium (ferment) that is unique in its function. Propionibacterium freudenreichii is a non-motile gram positive bacterium. It is chemoheterotrophic, which means that it needs complex carbohydrates to survive.

It is also called propionic bacteria because it produces a large amount of propionic acid in the colon.

Propionic acid is a short-chain fatty acid (SCFA) of vital importance to our microbiota as it is the natural substrate for the bifidobacteria that form part of our microbiota.
What does Propionibacterium produce in the gut?

The primary function of Propionibacterium freudenreichii is to regulate our microbiota. Once ingested, it can survive digestion and attach itself to cells and the intestinal mucosa.

It then ferments complex sugars (lactose, glucose, galactose and fructose), generating acetate, propionic acid and carbon dioxide.

  • Acetic acid or acetate is metabolised into glutamine and ketone compounds (Rowlands 2017), which reach the small intestine and peripheral tissues such as muscles. Glutamine is an essential component of the gut as it acts both as a nutrient and a gut protector.

  • Propionic acid is metabolised in the liver, acting as a precursor in gluconeogenesis, blood sugar control, and lipogenesis and triglyceride control (Escudero Álvarez, 2006).

Optim Propionibacter is manufactured in Belgium according to ISO 22000 and HACCP standards. 

The ingredients are carefully selected: 

- Gluten-free 
- GMO-free 

Propionibacterium freudenreichii lactic acid bacteria are produced in Spain according to ISO-9001.

Frequently Asked Questions

  • When to take Optim Propionibacter?
    It is a probiotic bacteria with high resistance to passage through the gastrointestinal tract.

    Propionibacterium Freudenreichii is a propionic acid producer and is resistant to acidity.  Optim Propionibacter can therefore be taken with or without a meal.
  • Do I need to store Optim Propionibacter in the refrigerator?
    It is not necessary to store it in the refrigerator. The lactic ferment is freeze-dried; it can thus be stored at room temperature and should be kept in a dry place.

Optim Propionibacter