Lactobacillus reuteri: probiotic strain

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Lactobacillus reuteri, now called Limosilactobacillus reuteri, is a lactic acid bacterium found naturally in the gut of humans and many animals. Known for producing reuterin, it is used as a lactic ferment in various food supplements.

Discover its origin, its main strains, its new classification, the state of research and our selection.

Lactobacillus reuteri: probiotic strain | NATURAMedicatrix

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NATURAMedicatrix

Lactipro Buccal

40 lozenges

€29.90

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Nutergia

Ergykid Infantis

10 ml

€17.91 €19.90

CRP phyto

H Pylori

60 capsules

€34.29 €34.30

Active ingredients guide

Lactobacillus reuteri: a lactobacillus of the human and animal gut

Lactobacillus reuteri (often shortened to L. reuteri) is a lactic acid bacterium: it converts sugars into lactic acid. It owes its name to the German microbiologist Gerhard Reuter, who studied intestinal lactobacilli extensively. It occurs naturally in the digestive tract of humans, but also of pigs, rodents and poultry.

Since the revision of the genus Lactobacillus published in 2020, its official scientific name has been Limosilactobacillus reuteri, although the former name remains the most common. Certain strains are cultivated for use as lactic ferments in food supplements.

A lactic acid bacterium

It ferments sugars and produces lactic acid.

A new name

Limosilactobacillus reuteri since 2020.

Reuterin

A compound it makes from glycerol, and to which it owes its reputation.

Profile

What is Lactobacillus reuteri?

Three characteristics make it possible to recognise L. reuteri:

Heterofermentative

In addition to lactic acid, it produces acetic acid, ethanol and carbon dioxide.

Adapted to its host

Strains isolated from humans differ genetically from those of animals.

A reuterin producer

A substance derived from the conversion of glycerol, studied since the 1980s.

Origin and strains

Where does L. reuteri come from and what are its strains?

In humans, L. reuteri has been found in the gut, the mouth and breast milk. It is also found in some bakers’ sourdoughs. However, it is not a usual ferment in yoghurts or cheeses.

As with all bacteria, a distinction is made between the species and the strain, designated by a code. The DSM 17938 strain is probably the best known and most studied; others, such as SGL01 or the Pylopass™ preparation, are used in various supplements. Two strains of the same species can have different properties; this is why scientific studies always focus on a specific strain.

What research says

Lactobacillus reuteri benefits: where does the science stand?

L. reuteri is the subject of extensive research, particularly in infants and children. Researchers are interested in reuterin, in the ability of certain strains to settle durably in their host and in their place within the intestinal and oral microbiota.

To date, no health claim relating to Lactobacillus reuteri is authorised in the European Union. This research therefore does not allow any particular effect to be attributed to this bacterium or to a food supplement containing it.

Buying guide

How to choose an L. reuteri supplement?

An identified strain

The full name states the species and the strain code assigned by the producer.

Live or inactivated

Some formulas use tyndallised bacteria, i.e. inactivated by heat: the label says so.

The form

Capsules, lozenges or drops in oil: the format depends on the intended use and on age.

Storage

Keep the product dry and away from heat, following the instructions on the label.

Our selection

Our products containing Lactobacillus reuteri

H Pylori — 60 capsules

400 mg of L. reuteri Pylopass™ per 2 capsules, with acacia fibre, in a pullulan vegetable capsule.

Discover H Pylori →

Lactipro Buccal — 40 lozenges

5 billion tyndallised L. reuteri per 2 lozenges, with L. rhamnosus, L. salivarius, clove, calcium and vitamin B8.

Discover Lactipro Buccal →

Ergykid Infantis — 10 ml

75 million L. reuteri per 8 drops, among 300 million bifidobacteria and lactobacilli, with vitamin D3, in sunflower oil.

Discover Ergykid Infantis →

Frequently asked questions

Lactobacillus reuteri FAQ

What are the benefits of Lactobacillus reuteri?

Several strains are being researched, but no health claim is authorised to date in the European Union for this bacterium. No recognised benefit can therefore be attributed to it.

What is the L. reuteri DSM 17938 strain?

It is a specific strain of L. reuteri of human origin, listed in the German DSMZ collection. It is one of the best documented of the species.

What does “tyndallised” mean?

Tyndallisation is a process of successive heating that inactivates bacteria. They are no longer alive, but their structures are preserved.

Where can I buy Lactobacillus reuteri?

In pharmacies, organic shops and online. At NATURAMedicatrix, L. reuteri is included in H Pylori, Lactipro Buccal and Ergykid Infantis.

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NATURAMedicatrix
8, Hannert dem Duarref
9772 Troine (Wincrange)
Luxembourg
Call us: +33977423704
Email us:

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Lactobacillus reuteri

Lactipro Buccal

Ergykid Infantis

H Pylori

Lactobacillus reuteri: a lactobacillus of the human and animal gut

What is Lactobacillus reuteri?

Heterofermentative

Adapted to its host

A reuterin producer

Where does L. reuteri come from and what are its strains?

Lactobacillus reuteri benefits: where does the science stand?

How to choose an L. reuteri supplement?

An identified strain

Live or inactivated

The form

Storage

Our products containing Lactobacillus reuteri

H Pylori — 60 capsules

Lactipro Buccal — 40 lozenges

Ergykid Infantis — 10 ml

Lactobacillus reuteri FAQ

What are the benefits of Lactobacillus reuteri?

What is the L. reuteri DSM 17938 strain?

What does “tyndallised” mean?

Where can I buy Lactobacillus reuteri?

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