Events that make an imprint

The researcher Ivan Casas was fascinated by what he called the circle of life, how essential bacteria are transferred from parent to offspring and where the unique Lactobacillus reuteri was one bacteria that the mother should pass on to her child. In Peru he finds the strain Lactobacillus reuteri Protectis in the breast milk of an Indian mother. This became the starting point for BioGaia.

Bacteria were the first form of life to “populate” the Earth some four billion years ago, and still today they dictate the conditions for our existence. Throughout evolution Lactobacillus reuteri has been faithful to its host and has developed in symbiosis with us humans. BioGaia probiotic products creates gastrointestinal balance by bringing our lost friend Lactobacillus reuteri back to us.


Probiotics of human origin

Lactobacillus reuteri is one of few bacteria that has co-evolved with humans since the beginning of time, and because of that it is adapted to its host. L. reuteri is among the first bacterial species to become naturally established in the normal microbiota of the new-born.

L. reuteri species have been shown to naturally colonize humans and different species have been isolated from:

  • breast milk
  • the vagina
  • the mouth
  • the stomach
  • the small intestine
  • the large intestine
  • feces


All our commercial strains are of human origin, naturally colonize humans, and are therefore more likely to actually have a positive effect on human health. Even an indigenous bacterium like BioGaia’s L. reuteri Protectis should be taken on a regular basis, to reach high enough levels to achieve proper colonization and have a good effect.

BioGaia's history

BioGaia´s history goes back to the 1980´s, at the time when HIV was discovered. The two scientists Sven Lindgren and Walt Dobrogosz were investigating different probiotics in order to see what effects they had in this area. Read more