We have communicated previously if you recall when you asked for more info on LB12.
You are very knowledgeable but with due respect, I do not think that the bacteria in 3Lac are all naturally occuring in the human digestive system. If I am not mistaken, and happy to stand corrected, 2 of the 3 strains are soil based organisms (SBO). As such they cannot be natural for the human GI tract. They are therefore transient bacterium.