What are 'Human Strains'? Do OptiBac Probiotics use Human Strains?
The term 'human strains' is vague, yet it generally refers to probiotics which were originally isolated from the human gut. OptiBac Probiotics use some strains with human origin, such as Bifidobacterium infantis Rosell-33, and also strains with dairy origin, such as Lactobacillus acidophilus Rosell-52. The scientific definition of probiotics (Live microorganisms which when administered in adequate amounts confer a health benefit on the host) does not stipulate that to be a probiotic the microbe must have a human origin. In fact, there are many examples of effective probiotic strains which are not recognised as normal inhabitants of the human microbiota; the very popular strain Saccharomyces boulardii (found in For bowel calm), for example, is not considered to be normally resident in the human GI tract.
For more information, see What are Human Strains?