Or my opinion at least!!
The main regulation issue is the price, and desperation for relief = rip off
The issue mostly is that these organisms don't live permanently in the gut (may be genetically modified) so 3 weeks after discontinuation the product wears off. Seriously we make other meds more affordable.
So I no longer use yoghurt, I tried s. Boulardii (discontinued) and I'm testing home made sauerkraut....
Anyone else have valid finding or particular probiotic that was useful?