Lactobacillus reuteri vs. Lactobacillus rhamnosus

Attribute	Lactobacillus reuteri	Lactobacillus rhamnosus
Genus	Lactobacillus	Lactobacillus
Species	reuteri	rhamnosus
Gram Stain	Positive	Positive
Shape	Rod-shaped	Rod-shaped
Optimal Temperature	37°C	37°C
Optimal pH	4.5 - 5.5	6.0 - 7.0
Probiotic Properties	Yes	Yes
Health Benefits	Improves gut health, immune system, and oral health	Improves gut health, immune system, and vaginal health

Introduction

Lactobacillus reuteri and Lactobacillus rhamnosus are two well-known probiotic strains that offer numerous health benefits. While both belong to the Lactobacillus genus, they have distinct characteristics and potential applications. In this article, we will explore the attributes of Lactobacillus reuteri and Lactobacillus rhamnosus, highlighting their similarities and differences.

Origin and Taxonomy

Lactobacillus reuteri is a species of lactic acid bacteria that was first isolated from the feces of humans and animals. It is commonly found in the gastrointestinal tract of mammals, including humans. On the other hand, Lactobacillus rhamnosus is a species of bacteria that was initially isolated from human milk. It is also present in the gastrointestinal tract and can be found in various fermented foods.

Both Lactobacillus reuteri and Lactobacillus rhamnosus are classified under the Lactobacillus genus, which is a group of Gram-positive, rod-shaped bacteria. They are facultative anaerobes, meaning they can survive in both oxygen-rich and oxygen-deprived environments.

Health Benefits

Both Lactobacillus reuteri and Lactobacillus rhamnosus offer a range of health benefits when consumed as probiotics:

• Gut Health: Both strains have been shown to support gut health by promoting a balanced gut microbiota. They can help maintain the integrity of the intestinal barrier, enhance nutrient absorption, and modulate immune responses in the gut.
• Immune System: Lactobacillus reuteri and Lactobacillus rhamnosus have immunomodulatory effects, meaning they can regulate the immune system. They may help reduce the risk of respiratory tract infections, allergies, and autoimmune diseases.
• Women's Health: Lactobacillus rhamnosus has been extensively studied for its potential benefits in women's health. It may help prevent and treat vaginal infections, such as bacterial vaginosis and yeast infections.
• Infant Health: Lactobacillus reuteri has shown promising results in improving colic symptoms in infants. It may also have a positive impact on infantile diarrhea and the prevention of necrotizing enterocolitis.
• Oral Health: Lactobacillus reuteri has been associated with improved oral health. It may help reduce the risk of dental caries and periodontal diseases by inhibiting the growth of harmful bacteria in the oral cavity.

Strain-Specific Attributes

While Lactobacillus reuteri and Lactobacillus rhamnosus share several health benefits, they also have unique attributes:

Lactobacillus reuteri

Lactobacillus reuteri is known for its ability to produce a broad spectrum of antimicrobial compounds, including reuterin. Reuterin has been shown to inhibit the growth of various pathogens, such as Escherichia coli and Salmonella. This strain also produces biofilms, which can help it adhere to the intestinal lining and exert its beneficial effects.

Furthermore, Lactobacillus reuteri has been associated with the production of vitamin B12, which is essential for various physiological processes in the body. This attribute sets it apart from many other probiotic strains.

Lactobacillus rhamnosus

Lactobacillus rhamnosus is known for its exceptional survivability in the gastrointestinal tract. It can withstand the acidic conditions of the stomach and bile salts in the small intestine, allowing it to reach the colon alive and exert its beneficial effects. This attribute makes it a popular choice for oral probiotic supplements.

Moreover, Lactobacillus rhamnosus has been extensively studied for its potential in preventing and managing various gastrointestinal disorders, including antibiotic-associated diarrhea, irritable bowel syndrome, and inflammatory bowel disease. It has also shown promise in reducing the risk of respiratory tract infections, particularly in children.

Conclusion

Lactobacillus reuteri and Lactobacillus rhamnosus are two probiotic strains that offer numerous health benefits. While they share some similarities in terms of supporting gut health, modulating the immune system, and promoting women's health, they also have distinct attributes. Lactobacillus reuteri is known for its antimicrobial properties, biofilm production, and vitamin B12 synthesis, while Lactobacillus rhamnosus excels in survivability through the gastrointestinal tract and has a strong focus on gastrointestinal and respiratory health. Incorporating these probiotic strains into a balanced diet or as supplements may contribute to overall well-being and support specific health concerns.