Lactobacillus rhamnosus is a bacterium that was originally considered to be a subspecies of L. casei, but later genetic research found it to be a species of its own. Some strains of L. rhamnosus are being used as probiotics. The species is sometimes used in yogurt and other dairy products. Some studies have been done on its in vivo effects. While frequently considered a beneficial organism, L. rhamnosus has been discovered to be pathogenic in certain circumstances.

Helps Fight Intestinal Tract Illnesses
According to studies published by Goldin and Gorbach, L. rhamnosus is said to be able to survive the highly acidic conditions of the human stomach, as well as the intestinal tract. It is also believed to be bile-stable. This makes the probiotic highly desirable in its ability to conquer intestinal ailments.

Suppresses Bacterial Infections in Renal Patients
In 2005, it was demonstrated that with patients experiencing kidney-related illnesses, L. rhamnosus is capable of interrupting the gastrointestinal transportation of the variety of enterococcus that is resistant to the antibiotic vancomycin.