Good questionâ?¦
Part of the problem???at least here in the U.S.???is that there is no meaningful legal definition of "probiotic," so there are products on the market using/containing strains of bacteria that are irrelevant at best (and potentially harmful at worst) in terms of healthy gut bacteria. There are certainly reputable companies as well. For example, I recently learned that the cultures Renew Life uses in their Ultimate Flora: Critical Care product are descended from cultures obtained from healthy human donors???in other words, a cleaner & less invasive way of introducing these bacteria than the method presented in this article.